37°42′N 122°00′W / 37.7°N 122°W / 37.7; -122
167-739: The East Bay is the eastern region of the San Francisco Bay Area and includes cities along the eastern shores of the San Francisco Bay and San Pablo Bay . The region has grown to include inland communities in Alameda and Contra Costa counties. With a population of roughly 2.8 million in 2024, it is the most populous subregion in the Bay Area, containing the second- and third-most populous Bay Area counties of Alameda (1.7 million) and Contra Costa (1.1 million). Oakland
334-722: A World Series game between two Bay Area baseball teams, the Loma Prieta earthquake struck and caused widespread infrastructural damage, including the failure of the Bay Bridge , a major link between San Francisco and Oakland . Even so, the Bay Area's technology industry continued to expand and growth in Silicon Valley accelerated: the United States census confirmed that year that San Jose had overtaken San Francisco in terms of population. The commercialization of
501-407: A 'lease' which turned out to be a mortgage against the 19,000-acre rancho. The lands became Carpentier's when Peralta refused to repay the loan he believed was fraudulently incurred. The Peraltas had no choice but to abandon the homesite they had occupied for two generations." In 1851, three men— Horace Carpentier , Edson Adams, and Andrew Moon—began developing what is now downtown Oakland. In 1852,
668-453: A complex multimodal transportation network. The earliest archaeological evidence of human settlements in the Bay Area dates back to 8000–10,000 BC. The oral tradition of the Ohlone and Miwok people suggests they have been living in the Bay Area for several hundreds if not thousands of years. The Spanish empire claimed the area beginning in the early period of Spanish colonization of
835-669: A disproportionate death toll from the COVID-19 pandemic and Delta cron hybrid variant within the San Francisco Bay Area. In 2023, prior to and during the Covid pandemic, Oakland became the first city in American history to lose three professional major league sports teams to other cities within a span of five years. Oakland is in the eastern region of the San Francisco Bay . The United States Census Bureau says
1002-643: A few years earlier, which now provides drinking water for 2.4 million people in the Bay Area. By 1915, the city had been sufficiently rebuilt and advertised itself to the world during the Panama Pacific Exposition that year, although the effects of the quake hastened the loss of the region's dominant status in California to the Los Angeles metropolitan area . During the 1929 stock market crash and subsequent economic depression , not
1169-559: A first in the United States, and four years later a majority of voters in the Bay Area rejected California Proposition 8 , which sought to constitutionally restrict marriage to opposite-sex couples but ultimately passed statewide. The Bay Area was also the center of contentious protests concerning racial and economic inequality . In 2009, an African-American man named Oscar Grant was fatally shot by Bay Area Rapid Transit police officers , precipitating widespread protests across
1336-552: A free weekly newspaper, the East Bay Express , which has reported on the culture and politics of the East Bay for over 30 years, and has influenced the identification of the East Bay as a culturally defined region of the Bay Area. The East Bay Monthly , another free newspaper, has been published since 1970. In the early years of the evolution of USA Today , during the early 1980s, they operated regional newspapers, with
1503-699: A major domestic military and naval hub, with large shipyards constructed in Sausalito and across the East Bay to build ships for the war effort. The Army's San Francisco Port of Embarkation was the primary origin for Army forces shipping out to the Pacific Theater of Operations . That command consisted of fourteen installations including Fort Mason, the Oakland Army Base , Camp Stoneman and Fort McDowell in San Francisco Bay and
1670-501: A marsh-lined wildlife haven, Lake Merritt was dredged and bordered with parks from the 1890s to the 1910s. Despite this reduction in habitat, Oakland is home to a number of rare and endangered species, many of which are localized to serpentine soils and bedrock. Lake Merritt is surrounded by residential and business districts, including downtown and Grand Lake . The city of Piedmont , incorporated in Oakland's central foothills after
1837-597: A new plant there, Oakland had become known as the " Detroit of the West," referring to the major auto manufacturing center in Michigan. Oakland expanded during the 1920s, as its population expanded with factory workers. Approximately 13,000 homes were built in the 3 years between 1921 and 1924, more than during the 13 years between 1907 and 1920. Many of the large downtown office buildings, apartment buildings, and single-family houses still standing in Oakland were built during
SECTION 10
#17327756140412004-630: A prolific agricultural region. In the 1850s, what became the first campus of the University of California was founded in Oakland, and Oakland was selected as the western terminal of the Transcontinental Railroad in 1869. The following year, Oakland's Lake Merritt became the United States' first officially designated wildlife refuge, now a National Historic Landmark . Following the catastrophic 1906 San Francisco earthquake , many San Francisco citizens moved to Oakland, enlarging
2171-474: A rate of one thousand per week on their way to California's interior, including the first large influx of Chinese immigrants to the U.S. The rush was so great that vessels were abandoned by the hundreds in San Francisco's ports as crews rushed to the goldfields. The unprecedented influx of new arrivals spread the nascent government authorities thin, and the military was unable to prevent desertions. As
2338-466: A result, numerous vigilante groups formed to provide order, but many tasked themselves with forcibly moving or killing local Native Americans , and by the end of the Gold Rush, two thirds of the indigenous population had been killed. During this same time, a constitutional convention was called to determine California's application for statehood into the United States. After statehood was granted,
2505-499: A significant earthquake hazard. Among the more well-understood faults, as of 2014, scientists estimate a 72% probability of a magnitude 6.7 earthquake occurring along either the Hayward, Rogers Creek, or San Andreas fault, with an earthquake more likely to occur in the East Bay's Hayward Fault. Two of the largest earthquakes in recent history were the 1906 San Francisco earthquake and the 1989 Loma Prieta earthquake . The Bay Area
2672-535: A single San Francisco-based bank failed, while the region attempted to spur job growth by simultaneously undertaking two large infrastructure projects: construction of the Golden Gate Bridge , which would connect San Francisco with Marin County , and the Bay Bridge , which would connect San Francisco with Oakland and the East Bay. After the United States joined World War II in 1941, the Bay Area became
2839-622: A single county, Alameda. Diverse assemblages adjoin in complex arrangements due to offsets along the many faults (both active and stable) in the area. As a consequence, many types of rock and soil are found in the region. The oldest rocks are metamorphic rocks that are associated with granite in the Salinian Block west of the San Andreas Fault . These were formed from sedimentary rocks of sandstone , limestone , and shale in uplifted seabeds. Volcanic deposits also exist in
3006-503: A small epidemic of Pneumonic plague which killed a dozen people in Oakland. This started when a man went hunting in Contra Costa Valley and killed a squirrel. After eating the squirrel, he fell ill four days later and another household member contracted the plague. This in turn was passed on either directly or indirectly to about a dozen others. The officials in Oakland acted quickly by issuing death certificates to monitor
3173-455: A span of five years. The earliest known inhabitants of the area were the Huchiun natives, who lived there for thousands of years. The Huchiun belonged to a linguistic grouping later called the Ohlone (a Miwok word meaning "western people"). In Oakland, they were concentrated around Lake Merritt and Temescal Creek , a stream that enters the San Francisco Bay at Emeryville . In 1772,
3340-410: A stampede of wealth-seekers descending on Sutter's Mill . The Bay Area's population quickly emptied out as laborers, clerks, waiters, and servants joined the rush to find gold, and California's first newspaper, The Californian , was forced to announce a temporary freeze in new issues due to labor shortages. By the end of 1849, news had spread across the world and newcomers flooded into the Bay Area at
3507-675: A storm sank the San Agustin and killed between 7 and 12 people. On December 8, 80 remaining crew members set sail on the San Buenaventura , a launch which was partially constructed en route from the Philippines . Seeking the fastest route south, the expedition sailed past the Golden Gate, arriving at Puerto de Chacala, Mexico on January 17, 1596. The Bay Area estuaries remained unknown to Europeans until members of
SECTION 20
#17327756140413674-514: A total of US$ 57 million during the 2001–2011 timeframe to plaintiffs claiming police abuse; this is the largest sum paid by any city in California. On October 10, 2011, protesters and civic activists began " Occupy Oakland " demonstrations at Frank Ogawa Plaza in Downtown Oakland . African-Americans dropped to 28% of Oakland's population in 2010, from nearly half in 1980, due to fast-rising rents and an extreme housing crisis in
3841-462: A vacant three-bedroom house in West Oakland. The group, calling themselves Moms 4 Housing , said their goal was to protest what they said was a large number of vacant houses in Oakland owned by redevelopment companies while the city experienced a housing crisis. Two months later they were evicted from the house by three dozen sheriff's deputies, as hundreds of supporters demonstrated in favor of
4008-787: Is accepted by most local governmental agencies including San Francisco Regional Water Quality Control Board , Bay Area Air Quality Management District , the San Francisco Bay Restoration Authority , the Metropolitan Transportation Commission , and the Association of Bay Area Governments , the latter two of which partner to deliver a Bay Area Census using the nine-county definition. Various U.S. Federal government agencies use definitions that differ from their local counterparts' nine-county definition. For example,
4175-403: Is additionally known for the complexity of its landforms, the result of millions of years of tectonic plate movements. Because the Bay Area is crossed by six major earthquake faults , the region is particularly exposed to hazards presented by large earthquakes. The climate is temperate and conducive to outdoor recreational and athletic activities such as hiking, running, and cycling. The Bay Area
4342-411: Is far enough inland that the fog often burns off by midday, allowing it to have typically sunny California days. The hills tend to have more fog than the flatlands, as the fog drifts down from Berkeley . The U.S. Weather Bureau kept weather records in downtown Oakland from October 4, 1894, to July 31, 1958. During that time, the record high temperature was 104 °F (40 °C) on June 24, 1957, and
4509-800: Is home to a complex network of watersheds, marshes, rivers, creeks, reservoirs, and bays that predominantly drain into the San Francisco Bay and Pacific Ocean. The largest bodies of water in the Bay Area are the San Francisco , San Pablo , and Suisun estuaries. Major rivers of the North Bay include the Napa River , the Petaluma River , the Gualala River , and the Russian River ; the former two drain into San Pablo Bay ,
4676-416: Is host to five professional sports teams and is a cultural center for music, theater, and the arts. It is also host to numerous higher education institutions, including research universities such as the University of California, Berkeley , and Stanford University , the latter known for helping to create the high tech center called Silicon Valley . Home to 101 municipalities and 9 counties, governance in
4843-468: Is largely influenced by the cold California Current , which penetrates the natural mountainous barrier along the coast by traveling through various gaps. In terms of precipitation , this means that the Bay Area has pronounced seasons. The winter season, which roughly runs between November and March, is the source of about 82% of annual precipitation in the area. In the South Bay and further inland, while
5010-536: Is not a formally defined region, aside from its being described as a region inclusive of Alameda and Contra Costa counties. As development moves generally eastward, new areas are described as being part of the East Bay. In 1996, BART was extended from its terminus in Concord to a new station in Pittsburg , symbolically incorporating the newly expanded Delta communities of Pittsburg and Antioch as extended regions of
5177-819: Is strongly promoted by city and county agencies, and by organizations like the East Bay Bicycle Coalition . Major pedestrian paths across the region include the San Francisco Bay Trail , the Bay Area Ridge Trail , the Ohlone Greenway , Iron Horse Regional Trail , Contra Costa Canal Trail, and the Richmond Greenway . Rail service in the East Bay dates to the First transcontinental railroad , when
East Bay - Misplaced Pages Continue
5344-405: Is the Bay Area's largest port and the fifth largest container shipping port in the United States. In 1868, the University of California was formed from the private College of California and a new campus was built in what would become Berkeley. The 1906 San Francisco earthquake saw a large number of refugees flee to the relatively undamaged East Bay, and the region continued to grow rapidly. As
5511-513: Is the largest city in the East Bay by population and the third largest in the Bay Area. The city serves as a major transportation hub for the U.S. West Coast , and its port is the largest in Northern California . Increased population has led to the growth of large edge cities such as Alameda , Concord , Emeryville , Fremont , Hayward , Livermore , Pleasanton , San Ramon , and Walnut Creek . Although initial development in
5678-417: Is the only beach in Oakland. Oaklanders refer to their city's terrain as "the flatlands" and "the hills" . Until recent waves of gentrification, these terms also symbolized Oakland's deep economic divide, with "the hills" being more affluent communities. About two-thirds of Oakland lies in the flat plain of the East Bay, with one-third rising into the foothills and hills of the East Bay range. Ruptures along
5845-399: Is titled East Bay Grease ), The Pointer Sisters , MC Hammer , Tony! Toni! Toné! , Tupac Shakur , Too Short , Spice 1 , en Vogue , Pete Escovedo and Sheila E , Keyshia Cole , and Mac Dre . The region is a major center for the development of rock , folk , funk , jazz , hip hop , soul and women's music . Bay Area thrash metal has centered strongly on the East Bay, including
6012-437: Is typified by the temperate and seasonal Mediterranean climate. Summers are usually dry and warm and winters are cool and damp. It has features found in both nearby coastal cities such as San Francisco and inland cities such as San Jose , making it warmer than San Francisco and cooler than San Jose. Its position on San Francisco Bay across from the Bay Bridge means the northern part of the city can have cooling maritime fog . It
6179-604: The Bank of Italy (now known as the Bank of America ), had managed to retrieve the money from his bank's vaults before fires broke out through the city and was the only bank with liquid funds readily available and was instrumental in loaning out funds for rebuilding efforts. Congress immediately approved plans for a reservoir in Hetch Hetchy Valley in Yosemite National Park , a plan they had denied
6346-559: The Bay Area , is a region of California surrounding and including San Francisco Bay . The Association of Bay Area Governments defines the Bay Area as including the nine counties that border the estuaries of San Francisco Bay, San Pablo Bay , and Suisun Bay : Alameda , Contra Costa , Marin , Napa , San Mateo , Santa Clara , Solano , Sonoma , and San Francisco . Other definitions may be either smaller or larger, and may include neighboring counties which are not officially part of
6513-518: The Black Panther Party at Merritt College (then located at a former high school on Grove Street, now occupied by Children's Hospital Oakland Research Institute ), which emphasized Black nationalism , advocated armed self-defense against police, and was involved in several incidents that ended in the deaths of police officers and other Black Panther members. Among their social programs were feeding children and providing other services to
6680-577: The College of California , and in 1869, the first campus of the University of California . The university moved just north to Berkeley in the 1870s. During the 1850s, just as gold was discovered in California, Oakland started growing and further developing because land was becoming too expensive in San Francisco . People in China were struggling financially as a result of the First Opium War ,
6847-624: The Federal Communications Commission (FCC) which regulates broadcast, cable, and satellite transmissions, includes nearby Colusa , Lake and Mendocino counties in their " San Francisco - Oakland - San Jose " media market , but excludes eastern Solano County. On the other hand, the United States Office of Management and Budget , which designates metropolitan statistical areas (MSAs) and combined statistical areas (CSA) for populated regions across
East Bay - Misplaced Pages Continue
7014-873: The Fox Oakland Theatre , the UC Berkeley Greek Theater , the nonprofit The Freight and Salvage , and the Concord Pavilion (formerly Sleep Train Pavilion). Major museums include the Oakland Museum of California , the Lawrence Hall of Science and the Chabot Space and Science Center . The East Bay Regional Parks District operates over fifty parks, many consisting of significant acreage of wildlands, in
7181-597: The Golden Gate or the estuaries, likely due to fog. Sir Francis Drake became the first European to land in the area and claim it in June 1579, when he landed at Drakes Bay near Point Reyes. Even though he claimed the region for Queen Elizabeth I as Nova Albion or New Albion , the English made no immediate follow up to the claim. In 1595, Philip II of Spain tasked Sebastião Rodrigues Soromenho with mapping
7348-711: The Hayward Fault Zone , Concord-Green Valley Fault , Calaveras Fault , Clayton-Marsh Creek-Greenville Fault , Rodgers Creek Fault , and the San Gregorio Fault . Significant blind thrust faults (faults with near vertical motion and no surface ruptures) are associated with portions of the Santa Cruz Mountains and the northern reaches of the Diablo Range and Mount Diablo . These "hidden" faults, which are not as well known, pose
7515-662: The Hayward fault , and the Diablo Range , which includes Mount Diablo and Mount Hamilton and runs along the Calaveras fault . In total, the Bay Area is traversed by seven major fault systems with hundreds of related faults, all of which are stressed by the relative motion between the Pacific Plate and the North American Plate or by compressive stresses between these plates. The fault systems include
7682-516: The Internet in the middle of the decade rapidly created a speculative bubble in the high-tech economy known as the dot-com bubble . This bubble began collapsing in the early 2000s and the industry continued contracting for the next few years, nearly wiping out the market. Companies like Amazon.com and Google managed to weather the crash however, and following the industry's return to normalcy, their market value increased significantly. Even as
7849-480: The Jim Crow South carried their racial attitudes, causing tensions to rise among black and white workers competing for better-paying jobs in the Bay Area. The racial harmony Oakland African-Americans had been accustomed to prior to the war evaporated. Also migrating to the area during this time were many Mexican Americans from southwestern states such as New Mexico , Texas , and Colorado . Many worked for
8016-619: The North Pacific High through the Golden Gate, which creates the city's characteristic cool winds and fog . The microclimate phenomenon is most pronounced during this time, when fog penetration is at its maximum in areas near the Golden Gate strait, while the South Bay and areas further inland are sunny and dry. Along the San Francisco peninsula, gaps in the Santa Cruz Mountains , one south of San Bruno Mountain and another in Crystal Springs, allow oceanic weather into
8183-642: The Oakland Hills . East Oakland, which includes the East Oakland Hills, encompasses more than half of Oakland's land area, stretching from Lakeshore Avenue on the east shore of Lake Merritt southeast to the San Leandro border. North Oakland encompasses the neighborhoods between downtown and Berkeley and Emeryville . West Oakland is the area between downtown and the Bay, partially surrounded by
8350-616: The Oakland Point , and encompassing the Port of Oakland . In 2011, Oakland was ranked the tenth most walkable city in the United States by Walk Score . Lake Merritt, an urban estuary near downtown, is a mix of fresh and salt water draining in and out from the Oakland Harbor at the San Francisco Bay and one of Oakland's most notable features. It was designated the United States' first official wildlife refuge in 1870. Originally
8517-418: The Pacific Ocean on the west and the bay on the east and are characterized by their mountainous and woody terrain. Sonoma and Napa counties are known internationally for their grape vineyards and wineries , and Solano County to the east, centered around Vallejo , is the fastest growing region in the Bay Area. The " Peninsula " subregion includes the cities and towns on the San Francisco Peninsula, excluding
SECTION 50
#17327756140418684-439: The Portolá expedition , while trekking along the California coast, encountered them in 1769 when the Golden Gate blocked their continued journey north. Several missions were founded in the Bay Area during this period. In 1806, a Spanish expedition led by Gabriel Moraga began at the Presidio, traveled south of the bay, and then east to explore the San Joaquin Valley . In 1821, Mexico gained its independence from Spain and
8851-468: The San Francisco–Oakland Bay Bridge also sustained damage and was closed to traffic for one month. On October 20, 1991, a massive firestorm swept down from the Berkeley /Oakland hills above the Caldecott Tunnel. Twenty-five people were killed, 150 people were injured, and nearly 4,000 homes destroyed. With the loss of life and an estimated economic loss of US$ 1.5 billion, this was the worst urban firestorm in American history, until 2017. During
9018-414: The San Joaquin River Delta , causing a cooling effect in Stockton and Sacramento , so that these cities are also cooler than their Central Valley counterparts in the south. The Bay Area is home to a diverse array of wildlife and, along with the connected San Joaquin River Delta represents one of California's most important ecological habitats. California's Dungeness crab , Pacific halibut , and
9185-404: The Second Opium War , and the Taiping Rebellion , so they began migrating to Oakland, many of whom were recruited to work on railroads. However, the Chinese struggled to settle because they were discriminated against by the white community and their living quarters were burned down on several occasions. The city and its environs quickly grew with the railroads, becoming a major rail terminal in
9352-411: The Southern Pacific Railroad , at its major rail yard in West Oakland. Their young men encountered hostility and discrimination by Armed Forces personnel, and tensions broke out in " zoot suit riots " in downtown Oakland in 1943 in the wake of a major disturbance in Los Angeles that year. In 1946, National City Lines (NCL), a General Motors holding company , acquired 64% of Key System stock; during
9519-552: The Transbay Terminal across the lower deck. Streetcars were replaced with busses in 1948 and transbay service halted in 1958. The system's assets were sold to the newly formed AC Transit in 1960. The East Bay's modern rail transit service is Bay Area Rapid Transit , or BART, which was primarily designed to deliver commuters to San Francisco via the Transbay Tube , and to a lesser extent Oakland and Berkeley. Amtrak 's California Zephyr terminates in Emeryville , providing connections as far as Chicago , and further stations across
9686-440: The USS Portsmouth into the bay and seized San Francisco, which was then known as Yerba Buena , and raised the American flag for the first time over Portsmouth Square . In 1848, James W. Marshall 's discovery of gold in the American River sparked the California Gold Rush , and within half a year 4,000 men were panning for gold along the river and finding $ 50,000 per day. The promise of fabulous riches quickly led to
9853-559: The University of California, Berkeley Richard Walker claimed that "no other U.S. city-region is as definitionally challenged [as the Bay Area]." When the region began to rapidly develop during and immediately after World War II , local planners settled on a nine-county definition for the Bay Area, consisting of the counties that directly border the San Francisco , San Pablo , and Suisun estuaries : Alameda , Contra Costa , Marin , Napa , San Francisco , San Mateo , Santa Clara , Solano , and Sonoma counties. Today, this definition
10020-425: The Western Pacific Railroad was contracted by the Central Pacific Railroad to provide the link between the Bay and Sacramento . This railroad eventually became the Niles Canyon Railway . Service to Alameda commenced in September 1869, four months after driving the golden spike at Promintory, Utah . Oakland Long Wharf eventually became the western terminus before ferry service to San Francisco. This road provided
10187-485: The gay rights movement . At the same time, parts of San Mateo and Santa Clara counties began to rapidly develop from an agrarian economy into a hotbed of the high-tech industry . Fred Terman , the director of a top-secret research project at Harvard University during World War II, joined the faculty at Stanford University in order to reshape the university's engineering department. His students, including David Packard and William Hewlett , would later help usher in
SECTION 60
#173277561404110354-401: The osprey . In 1927, zoologist Joseph Grinnell wrote that osprey were only rare visitors to the San Francisco Bay Area, although he noted records of one or two used nests in the broken tops of redwood trees along the Russian River . In 1989, the southern breeding range of the osprey in the Bay Area was Kent Lake , although osprey were noted to be extending their range further south in
10521-446: The west coast of the United States , including populations residing in tributaries to San Francisco Bay. California Coast Chinook salmon were historically native to the Guadalupe River in San Francisco Bay, and Chinook salmon runs persist today in the Guadalupe River, Coyote Creek , Napa River , and Walnut Creek . Industrial, mining, and other uses of mercury have resulted in a widespread distribution of that poisonous metal in
10688-406: The "AC" moniker. County Connection , WestCAT , WHEELS , Tri Delta Transit and Union City Transit also provide bus service in the East Bay. Ferry service is provided by San Francisco Bay Ferry from Jack London Square and Alameda Harbor, with service at Richmond Ferry Terminal slated to begin in 2018. Hercules may also see future ferry service to San Francisco. Bicycle transportation
10855-426: The 1890s. The various streetcar companies operating in Oakland were acquired by Francis "Borax" Smith and consolidated into what eventually became known as the Key System , the predecessor of today's publicly owned AC Transit . Oakland was one of the worst affected cities in California that was impacted by the San Francisco plague of 1900–1904 . Quarantine measures were set in place at the Oakland ports requiring
11022-424: The 1906 earthquake, is a small independent city surrounded by the city of Oakland. Oakland has a warm-summer Mediterranean climate ( Köppen Csb ) with an average of 260 sunny days per year. In general, the city features warm, dry summers, and cool, wet winters. Based on data gathered by the National Oceanic and Atmospheric Administration , Oakland is ranked No. 1 in climate among U.S. cities. Oakland's climate
11189-427: The 1920s; they reflect the architectural styles of the time. Russell Clifford Durant established Durant Field at 82nd Avenue and East 14th Street in 1916. The first transcontinental airmail flight finished its journey at Durant Field on August 9, 1920, flown by Army Capt. Eddie Rickenbacker and Navy Lt. Bert Acosta . Durant Field was often called Oakland Airport, though the current Oakland International Airport
11356-477: The 1950s California Supreme Court lawsuit Vallerga v. Dept. Alcoholic Bev. Control, when the bar challenged a state law for the right to serve gay patrons and won in 1959. In 1960, Kaiser Corporation opened its new headquarters; it was the largest skyscraper in Oakland, as well as "the largest office tower west of Chicago " up to that time. In the postwar period, suburban development increased around Oakland, and wealthier residents moved to new housing . Despite
11523-421: The 1980s an effort to re-introduce the species to the area began with the Santa Cruz Predatory Bird Research Group and the San Francisco Zoo importing birds and eggs from Vancouver Island and northeastern California, and there are now nineteen nesting couples in eight of the Bay Area's nine counties. Other once absent species that have returned to the Bay Area include Swainson's hawk , white tailed kite , and
11690-441: The Americas . The earliest Spanish exploration of the Bay Area took place in 1769. The Mexican government controlled the area from 1821 until the 1848 Treaty of Guadalupe Hidalgo . Also in 1848, James W. Marshall discovered gold in nearby mountains , resulting in explosive immigration to the area and the precipitous decline of the Native population . The California Gold Rush brought rapid growth to San Francisco . California
11857-416: The Bay Area at the time of first European contact were descended from Siberian tribes who arrived at around 1,000 BCE by sailing over the Arctic Ocean and following the salmon migration. However the current academic consensus is compatible with the oral tradition of the Ohlone and Miwok peoples, which suggests they have been living in the Bay Area for several hundreds if not thousands of years. At
12024-631: The Bay Area became part of the Mexican province of Alta California , a period characterized by ranch life and visiting American trappers. Mexico's control of the territory would be short-lived, however, and in 1846 a party of settlers occupied Sonoma Plaza and proclaimed the independence of the new Republic of California . That same year, the Mexican–American War began, and American captain John Berrien Montgomery sailed
12191-449: The Bay Area has experienced numerous political, cultural, and artistic movements, developing unique local genres in music and art and establishing itself as a hotbed of progressive politics . Economically, the post-war Bay Area saw large growth in the financial and technology industries, creating an economy with a gross domestic product of over $ 700 billion. In 2018 it was home to the third-highest concentration of Fortune 500 companies in
12358-521: The Bay Area involves numerous local and regional jurisdictions, often with broad and overlapping responsibilities. The Coyote Hills Shell Mound, the earliest known archaeological evidence of human habitation of the Bay Area estuaries, dates to around 10,000 BCE, with evidence pointing to even earlier settlement in Point Reyes in Marin County . It has been conjectured that the people living in
12525-581: The Bay Area their home, making the region a popular destination for birdwatching . Many birds are listed as endangered species despite once being common in the region. Western burrowing owls were originally listed as a species of special concern by the California Department of Fish and Game in 1979. California's population declined 60% from the 1980s to the early 1990s, and continues to decline at roughly 8% per year. A 1992–93 survey reported little to no breeding burrowing owls in most of
12692-518: The Bay Area, all naturally spawned anadromous steelhead populations below natural and manmade impassable barriers in California streams from the Russian River to Aptos Creek , and the drainages of San Francisco, San Pablo, and Suisun Bays are listed as threatened under the Federal Endangered Species Act . The Central California Coast coho salmon population is the most endangered of the many troubled salmon populations on
12859-467: The Bay Area, and the eighth most populous city in California. It serves as the Bay Area's trade center: the Port of Oakland is the busiest port in Northern California , and the fifth- or sixth-busiest in the United States. A charter city , Oakland was incorporated on May 4, 1852, in the wake of the state's increasing population due to the California gold rush . Oakland's territory covers what
13026-488: The Bay Area, left behind by the movement of the San Andreas Fault, whose movement sliced a subduction plate and allowed magma to briefly flow to the surface. The region has considerable vertical relief in its landscapes that are not in the alluvial plains leading to the bay or in the inland valleys. The topography, and geologic history, of the Bay Area can largely be attributed to the compressive forces between
13193-1058: The Bay Area: the Karkin of the Carquinez Strait , the Chochenyo of the East Bay , the Ramaytush of the San Francisco Peninsula , and the Tamien of the South Bay. The Miwok had two major groups in the Bay Area: the Bay Miwok of Contra Costa and the Coast Miwok of Marin and Sonoma . In 1542, Juan Rodríguez Cabrillo explored the Pacific coast near the Bay Area though the expedition did not see
13360-458: The Bay. The wild turkey population was introduced in the 1960s by state game officials, and by 2015 have become a common sight in East Bay communities. The Bay Area is well known for the complexity of its landforms that are the result of the forces of plate tectonics acting over of millions of years, since the region is located in the middle of a meeting point between two plates. Nine out of eleven distinct assemblages have been identified in
13527-487: The California scorpionfish are all significant components of the bay's fisheries . The bay's salt marshes now represent most of California's remaining salt marsh and support a number of endangered species and provide key ecosystem services such as filtering pollutants and sediments from the rivers. Most famously, the bay is a key link in the Pacific Flyway and with millions of shorebirds annually visiting
13694-745: The Central Valley and the Sierra Nevada. In 2014, a Bay Area-wide survey found osprey had extended their breeding range southward with nesting sites as far south as Hunters Point in San Francisco on the west side and Hayward on the east side, while further studies have found nesting sites as far south as the Los Gatos Creek watershed, indicating that the nesting range now includes the entire length of San Francisco Bay. Most nests were built on man-made structures close to areas of human disturbance, likely due to lack of mature trees near
13861-601: The Deep South: Alabama, Arkansas, Georgia, Louisiana, Mississippi, South Carolina, and Texas, as well as Missouri and Tennessee. Henry J. Kaiser 's representatives recruited sharecroppers and tenant farmers from rural areas to work in his shipyards. African Americans were part of the Great Migration by which five million persons left the South, mostly for the West, from 1940 to 1970. White migrants from
14028-400: The East Bay are served by Amtrak California 's Coast Starlight and San Joaquin . The East Bay has a mixed economy of services, manufacturing, and small and large businesses. The region is headquarters to a number of highly notable businesses, including Kaiser Permanente , Chevron , and Safeway , among others. The East Bay Economic Development Alliance was founded by Alameda County as
14195-636: The East Bay grew, the push to connect it with a more permanent link than ferry service resulted in the completion of the San Francisco–Oakland Bay Bridge in 1936. The Bay Area saw further growth in the decades following World War II, with the population doubling between 1940 and 1960, and doubling again by 2000. The 1937 completion of the Caldecott Tunnel through the Berkeley Hills fueled growth further east, where there
14362-535: The East Bay receives oceanic weather that travels through the Golden Gate strait, and further diffuses that air through the Berkeley Hills , Niles Canyon and the Hayward Pass into the Livermore Valley and Altamont Pass . Here, the resulting breeze is so strong that it is home to one of the world's largest array of wind turbines . Further north, the Carquinez Strait funnels the ocean weather into
14529-565: The East Bay until they declared bankruptcy. The New United Motor Manufacturing, Inc. (NUMMI) automobile manufacturing plant employed about 5,100 employees at its peak. Tesla, Inc. has taken over part of the NUMMI plant, which is still the only automobile manufacturing plant in California. The East Bay is served by a number of both public and private higher education institutions: Colleges Universities San Francisco Bay Area The San Francisco Bay Area , commonly known as
14696-415: The East Bay, many directly adjacent to urban centers. Tilden Regional Park , is one of the largest regional parks (2,000 acres (8.1 km)) located directly adjacent to the urban center of Berkeley. Briones Regional Park , at 5,000 acres, is another large wildlands park near an urban center, Walnut Creek. The East Bay also has a rich political history. One of the revolutionary movements founded in Oakland
14863-459: The East Bay. Beyond the borders of Alameda County, the large population of Tracy is connected as a bedroom community housing commuters traveling to or through the East Bay. Except for some hills and ridges which exist as parklands or undeveloped land, and some farmland in eastern Contra Costa and Alameda Counties, the East Bay is highly urbanized. The East Bay shoreline is an urban corridor with several cities exceeding 100,000 residents, including
15030-540: The Economic Development Advisory Board in 1990 as a public/private partnership with the mission to promote the East Bay as an important region for development, with Contra Costa County joining in 1996, and the current name chosen in 2006. The East Bay, as a part of the greater Bay Area, is a highly developed region, and is a major center for new and established economic ventures. Along with the county governments of Alameda and Contra Costa,
15197-806: The Fruitvale District, and included the Josiah Lusk Canning Company, the Oakland Preserving Company (which started the Del Monte brand), and the California Packing Company. President Franklin D. Roosevelt called on defense industries with government contracts to integrate their workforces and provide opportunities for all Americans. Tens of thousands of laborers came from around the country, especially poor whites and blacks from
15364-886: The Pacific Plate and the North American plate. The three major ridge structures in the Bay Area, part of the Pacific Coast Range , are all roughly parallel to the major faults . The Santa Cruz Mountains along the San Francisco Peninsula and the Marin Hills in Marin County follow the San Andreas fault , The Berkeley Hills , San Leandro Hills and their southern ridgeline extension through Mission Peak roughly follow
15531-413: The San Francisco Bay Area are not officially delineated, and the unique development patterns influenced by the region's topography , as well as unusual commute patterns caused by the presence of three central cities and employment centers located in various suburban locales, has led to considerable disagreement between local and federal definitions of the area. Because of this, professor of geography at
15698-540: The San Francisco Bay Area, such as the Central Coast counties of Santa Cruz , San Benito , and Monterey , or the Central Valley counties of San Joaquin , Merced , and Stanislaus . The Bay Area is known for its natural beauty, prominent universities, technology companies, and affluence. The Bay Area contains many cities, towns, airports, and associated regional, state, and national parks, connected by
15865-571: The State Board of Health and the United States Public Health Service were only allotted about $ 60,000 a year to eradicate the disease. During this period Oakland did not have sufficient health facilities, so some of the infected patients were treated at home. The State Board of Health along with Oakland also advised physicians to promptly report any cases of infected patients. Yet, in 1919 it still resulted in
16032-538: The Town of Oakland was incorporated by the state legislature. During this time, Oakland had 75–100 inhabitants, two hotels, a wharf, two warehouses, and only cattle trails. Two years later, on March 25, 1854, Oakland re-incorporated as the City of Oakland. Horace Carpentier was elected the first mayor, though a scandal ended his mayorship in less than a year. In 1853, a preparatory academy was founded in Oakland that soon became
16199-540: The United States. The Bay Area is home to approximately 7.52 million people. The larger federal classification, the combined statistical area of the region which includes 13 counties, is the second-largest in California—after the Greater Los Angeles area—and the fifth-largest in the United States, with over 9 million people. The Bay Area's population is ethnically diverse: roughly three-fifths of
16366-488: The Whale , a humpback whale who entered San Francisco Bay twice on errant migrations in the late 1980s and early 1990s. Bottlenose dolphins and harbor porpoises have recently returned to the bay, having been absent for many decades. Historically, this was the northern extent of their warm-water species range. In addition to the many species of marine birds that can be seen in the Bay Area, many other species of birds make
16533-577: The area defined as the Central Business District in Oakland's 1998 General Plan. Brown's plan and other redevelopment projects were controversial due to potential rent increases and gentrification , which would displace lower-income residents from downtown Oakland into outlying neighborhoods and cities. Due to allegations of misconduct by the Oakland Police Department , the City of Oakland has paid claims for
16700-488: The area that later became Oakland was colonized, along with the rest of California, by Spanish settlers for the king of Spain . In the early 19th century, the Spanish crown granted the East Bay area to Luis María Peralta for his Rancho San Antonio . The grant was confirmed by the successor Mexican republic upon its independence from Spain. Upon his death in 1842, Peralta divided his land among his four sons. Most of Oakland
16867-472: The area's largest city and the 13th-most populous in the United States . Despite its urban character, San Francisco Bay is one of California's most ecologically sensitive habitats, providing important ecosystem services such as filtering the pollutants and sediments from rivers and supporting a number of endangered species . In addition, the Bay Area is known for its stands of coast redwoods , many of which are protected in state and county parks. The region
17034-428: The area. State Route 61 , State Route 84 , State Route 123 , State Route 185 , and State Route 238 are major surface streets that receive state funding for maintenance. San Pablo Avenue previously carried U.S. Route 40 until the terminus was moved progressively east to Utah . AC Transit is the major bus transit agency for the region, and provides bus service throughout Alameda and Contra Costa counties, hence
17201-403: The authorities at the port to inspect the arriving vessels for the presence of infected rats. Quarantine authorities at these ports inspected over a thousand vessels per year for plague and yellow fever. By 1908, over 5,000 people were detained in quarantine. Hunters were sent to poison the affected areas in Oakland and shoot the squirrels, but the eradication work was limited in its range because
17368-411: The automobile industry went through restructuring, many jobs were lost. In addition, labor unrest increased as workers struggled to protect their livelihoods. Oakland was the center of a general strike during the first week of December 1946, one of six cities across the country that had such a strike after World War II. The Mary's First and Last Chance in Oakland was a lesbian bar, once the focus of
17535-820: The bands Exodus and Metallica , among others. Possessed and Death , both considered the first death metal bands, have roots or connections in the East Bay: Possessed formed in El Sobrante , with Death debuting nationally while in Concord . Major music (and sports) venues include the Oakland Arena ; adjacent Oakland Coliseum ; the Oakland Paramount Theater , venue for the Oakland East Bay Symphony ;
17702-590: The bay has been significantly altered heavily re-engineered to accommodate the needs of water delivery, shipping, agriculture, and urban development, with side effects including the loss of wetlands and the introduction of contaminants and invasive species . Approximately 85% of those marshes have been lost or destroyed, but about 50 marshes and marsh fragments remain. Huge tracts of the marshes were originally destroyed by farmers for agricultural purposes, then repurposed to serve as salt evaporation ponds to produce salt for food and other purposes. Today, regulations limit
17869-436: The bay into north and south regions. In 1989, the federal Environmental Protection Agency defined the South Bay as the northern part of Santa Clara County and the southeastern part of San Mateo County. The Bay Area is located in the warm-summer Mediterranean climate zone ( Köppen Csb ) that is a characteristic of California's coast, featuring mild to cool winters with occasional rainfall, and warm to hot, dry summers. It
18036-444: The bay shallows as a refuge, is the most important component of the flyway south of Alaska . Many endangered species of birds are also found here: the California least tern , the California clapper rail , the snowy egret , and the black crowned night heron . There is also a significant diversity of salmonids present in the bay. Steelhead populations in California have dramatically declined due to human and natural causes; in
18203-488: The bay, with uptake in the bay's phytoplankton and contamination of its sportfish . Aquatic mammals are also present in the bay. Before 1825, Spanish, French, English, Russians and Americans were drawn to the Bay Area to harvest prodigious quantities of beaver , river otter , marten, fisher, mink, fox, weasel, harbor and fur seals and sea otter . This early fur trade, known as the California Fur Rush ,
18370-819: The bay. On November 27, 1908, Homer took a ferry across the bay in a driving rainstorm and met for lunch with Frank and twenty three other businessmen at the Hotel Metropole at 13th and Jefferson. This gathering became the first meeting of the Tri-City Rotary Club, renamed in 1911 The Rotary Club of Oakland, the third Rotary Club in the world. This group established the tradition of weekly meetings, something most clubs worldwide follow today. In 1917, General Motors opened an automobile factory in East Oakland called Oakland Assembly . It produced Chevrolet cars and then GMC trucks until 1963, when it
18537-547: The capital city moved between three cities in the Bay Area: San Jose (1849–1851), Vallejo (1851–1852), and Benicia (1852–1853) before permanently settling in Sacramento in 1854. As the Gold Rush subsided, wealth generated from the endeavor led to the establishment of Wells Fargo Bank and the Bank of California , and immigrant laborers attracted by the promise of wealth transformed the demographic makeup of
18704-595: The cities of Oakland , Hayward , Fremont , Richmond , and Berkeley . In the inland valleys on the east side of the Berkeley Hills, the land is mostly developed, particularly on the eastern fringe of Contra Costa county and the Tri-Valley area. In the inland valleys, the population density is less and the cities smaller. Cities exceeding 100,000 residents in the inland valleys include Antioch and Concord . East Bay cities include: The East Bay has
18871-568: The city of San Francisco, natural and artificial topographical features direct the movement of wind and fog, resulting in startlingly varied climates between city blocks. Along the Golden Gate Strait , oceanic wind and fog from the Pacific Ocean are able to penetrate the mountain barriers inland into the Bay Area. During the summer, rising hot air in California's interior valleys creates a low pressure area that draws winds from
19038-483: The city's total area is 78.0 square miles (202 km ), including 55.8 square miles (145 km ) of land and 22.2 square miles (57 km ) (28.48 percent) of water. Oakland's highest point is near Grizzly Peak Blvd, east of Berkeley, just over 1,760 feet (540 m) above sea level at about 37°52′43″N 122°13′27″W / 37.8786°N 122.2241°W / 37.8786; -122.2241 . Oakland has 19 miles (31 km) of shoreline, but Radio Beach
19205-494: The country, has five MSAs which include, wholly or partially, areas within the nine-county definition, and one CSA which includes eight Bay Area counties (excluding Sonoma ), but including neighboring San Benito , Santa Cruz , San Joaquin , Merced , and Stanislaus counties. The Association of Bay Area Health Officers (ABAHO), an organization that has fought local outbreaks of HIV/AIDS in 1980s and with COVID-19 pandemic and Delta cron hybrid variant (2020–22), consists of
19372-490: The destruction of tidal marshes, and large portions are currently being rehabilitated to their natural state. Over time, droughts and wildfires have increased in frequency and become less seasonal and more year-round, further straining the region's water security . According to the 2010 United States Census , the population of the nine-county Bay Area was 7.15 million, with 49.6% male and 50.4% female. Of these, approximately 2.3 million (32%) are foreign born. In 2010
19539-722: The east (up to 30 inches [760 mm]), with nearly all precipitation falling between November and April. Overnight lows are mild. Oakland seldom experiences warm nights with the warmest recorded night of 72 °F (22 °C) in September 1971 and an average of 64 °F (18 °C) for the annual warmest low. The coldest day of the year averages a mild 50 °F (10 °C) and has never been recorded below 36 °F (2 °C). The National Weather Service today has two official weather stations in Oakland: Oakland International Airport and
19706-419: The greater Bay Area focused on San Francisco , the coastal East Bay came to prominence in the middle of the 19th century as the part of the Bay Area most accessible by land from the east. The transcontinental railroad was completed in 1869 with its western terminus at the newly constructed Oakland Long Wharf , and the new city of Oakland rapidly developed into a significant seaport. Today the Port of Oakland
19873-553: The growth of the technology sector transformed the region's economy, progressive politics continued to guide the region's political environment. By the turn of the millennium, non-Hispanic whites , the largest ethnic group in the United States, were only half of the population in the Bay Area as immigration among minority groups accelerated. During this time, the Bay Area was the center of the LGBT rights movement : in 2004, San Francisco began issuing marriage licenses to same-sex couples ,
20040-581: The hit American pop song San Francisco (Be Sure to Wear Flowers in Your Hair) further enticing like-minded individuals to join the movement in the Bay Area and leading to the Summer of Love . In the proceeding decades, the Bay Area would cement itself as a hotbed of New Left activism, student activism , opposition to the Vietnam War and other anti-war movements , the black power movement , and
20207-534: The incorporation of California into the United States after the Mexican–American War . Camarillo claims the family was the victim of targeted racial violence . He writes in Chicanos in California , "They lost everything when squatters cut down their fruit trees, killed their cattle, destroyed their buildings, and even fenced off the roads leading to the rancho. Especially insidious were the actions of attorney Horace Carpentier , who tricked Vicente Peralta into signing
20374-523: The interior, causing a cooling effect for cities along the Peninsula and even as far south as San Jose. This weather pattern is also the source for delays at San Francisco International Airport . In Marin county north of the Golden Gate strait, two gaps north of Muir Woods bring cold air across the Marin Headlands , with the cooling effect reaching as far north as Santa Rosa . Further inland,
20541-408: The larger subregions, the East Bay includes a variety of enclaves, including the suburban Tri-Valley area and the highly urban western part of the subregion that runs alongside the bay, including Oakland. The " North Bay " includes Marin , Sonoma , Napa , and Solano counties, and is the geographically largest and least populated subregion. The western counties of Marin and Sonoma are encased by
20708-416: The largest employers are: Other major companies with headquarters in the East Bay include 10x Genomics , 24 Hour Fitness , Alibris , ANG Newspapers , Clif Bar , Clorox , Columbus Salame , Dreyer's , Ellie Mae , GE Digital , Ghirardelli Chocolate Company , Gillig Corporation , LeapFrog , Peet's Coffee , Pixar Animation Studios , Ross Stores and Workday . Mervyn's headquarters were located in
20875-537: The late 1860s and 1870s. In 1868, the Central Pacific constructed the Oakland Long Wharf at Oakland Point, the site of today's Port of Oakland . A number of horsecar and cable car lines were constructed in Oakland during the latter half of the 19th century. The first electric streetcar set out from Oakland to Berkeley in 1891, and other lines were converted and added over the course of
21042-464: The late part of the century, the Key System provided interurban routes across Alameda county, with connections to San Francisco ferries via their private Key System Pier. Southern Pacific ran a competing system, East Bay Electric Lines, until they, too, had the Key System take over operations. When the San Francisco–Oakland Bay Bridge opened in 1936, Key System cars could make the trip directly to
21209-493: The latter two into the Pacific Ocean. In the South Bay, the Guadalupe River drains into San Francisco Bay near Alviso . There are also several lakes present in the Bay Area, including man-made lakes like Lake Berryessa and natural albeit heavily modified lakes like Lake Merritt . Prior to the introduction of European agricultural methods, the shores of San Francisco Bay consisted mostly of tidal marshes. Today,
21376-421: The major increases in the number and proportion of African Americans in the city, in 1966 only 16 of the city's 661 police officers were black. Tensions between the black community and the largely white police force were high, as expectations during the civil rights era increased to gain social justice and equality before the law. Police abuse of blacks was common. Students Huey Newton and Bobby Seale founded
21543-535: The mid-1990s, Oakland's economy began to recover as it transitioned to new types of jobs. In addition, the city participated in large development and urban renewal projects, concentrated especially in the downtown area, at the Port of Oakland , and at the Oakland International Airport . After his 1999 inauguration, Oakland Mayor Jerry Brown continued his predecessor Elihu Harris' public policy of supporting downtown housing development in
21710-485: The most ethnically diverse cities in the United States. Oakland, California Oakland is a city in the East Bay region of the San Francisco Bay Area in the U.S. state of California . It is the county seat and most populous city in Alameda County , with a population of 440,646 in 2020. A major West Coast port, Oakland is the most populous city in the East Bay, the third most populous city in
21877-509: The nearby San Andreas Fault caused severe earth movement in the San Francisco Bay Area in 1906 and 1989. San Andreas quakes induces creep (movement occurring on earthquake faults) in the Hayward fault, which runs directly through Oakland, Berkeley, San Jose and other Bay Area cities. Oakland has more than 50 distinct neighborhoods. The city's greater divisions include downtown Oakland and its greater Central Business District , Lake Merritt , East Oakland , North Oakland , West Oakland , and
22044-403: The nearby town of Alameda being made an island. In 1906, the city's population doubled with refugees made homeless after the 1906 San Francisco earthquake and fire. In 1908, the lawyer, former miner, and newspaper owner Homer Wood (1880–1976) suggested to his friend Frank Bilger of Blake and Bilger Rock Quarry and Paving Company that he organize a gathering to establish a Rotary Club east of
22211-416: The needy. As in many other American cities during the 1980s, crack cocaine became a serious problem in Oakland. Drug dealing in general, and the dealing of crack cocaine in particular, resulted in elevated rates of violent crime, causing Oakland to consistently be listed as one of America's most crime-ridden cities. In 1980, Oakland's Black population reached its 20th-century peak at approximately 47% of
22378-499: The next several years NCL engaged in the conspiratorial dissolution of Oakland's electric streetcar system. The city's expensive electric streetcar fleet was converted to cheaper diesel buses. The state Legislature created the Alameda and Contra Costa Transit District in 1955, which operates today as AC Transit , the third-largest bus-only transit system in the nation. After the war, as Oakland's shipbuilding industry declined and
22545-460: The overall city population. The 6.9 M w Loma Prieta earthquake occurred on October 17, 1989. The rupture was related to the San Andreas fault system and affected the entire San Francisco Bay Area with a maximum Mercalli intensity of IX ( Violent ). Many structures in Oakland were badly damaged including the double-decker portion of Interstate 880 that collapsed. The eastern span of
22712-418: The population, increasing its housing stock, and improving its infrastructure. It continued to grow in the 20th century with its port, shipyards , and manufacturing industry. In the 21st century, between 2019 and 2023, after the city and county refused requests for hundreds of millions of dollars in benefits to the privately owned teams, Oakland lost three teams of the major North American sports leagues within
22879-517: The public health officers of 9 Bay Area counties, in addition to the Central Coast counties of Santa Cruz , San Benito , and Monterey and the city of Berkeley . Among locals, the nine-county Bay Area is divided into five sub-regions: the East Bay , North Bay , Peninsula , city of San Francisco , and South Bay . The " East Bay " is the densest region of the Bay Area outside of San Francisco and includes cities and towns in Alameda and Contra Costa counties centered around Oakland . As one of
23046-497: The racial makeup of the nine-county Bay Area was 52.5% White (42.4% were non-Hispanic and 10.1% were Hispanic ), 23.3% Asian , 6.7% non-Hispanic Black or African American , 0.7% Native American or Alaska Native , 0.6% Pacific Islander , 5.4% from two or more races and 10.8% from other races. Hispanic or Latino residents of any race formed 23.5% of the population. The Bay Area cities of Vallejo , Suisun City , Oakland , San Leandro , Fairfield , and Richmond are among
23213-521: The record low temperature was 24 °F (−4 °C) on January 23, 1949. Dry, warm offshore "Diablo" winds (similar to the Santa Ana winds of Southern California) sometimes occur, especially in fall, and raise the fire danger. In 1991, such an episode allowed the catastrophic Oakland Hills fire to spread and consume many homes. Oakland, like much of Northern California, is susceptible to winter rainstorms and Atmospheric rivers . The wettest "rain year"
23380-470: The region and even riots in Oakland. His name was symbolically tied to the Occupy Oakland protests two years later that sought to fight against social and economic inequality. By August 2023, San Francisco was in such severe decline that Mayor Matt Mahan of San Jose joked that one day the region might be renamed the "San Jose Bay Area", after its largest and most prosperous city. The borders of
23547-472: The region's high-tech revolution. In 1955, Shockley Semiconductor Laboratory opened for business in Mountain View near Stanford, and although the business venture was a financial failure, it was the first semiconductor company in the Bay Area, and the talent that it attracted to the region eventually led to a high-tech cluster of companies later known as Silicon Valley . In 1989, in the middle of
23714-705: The region's paper entitled East Bay Today . The Solano Avenue Stroll , the oldest and largest street festival in the greater San Francisco Bay Area, is held every September on the Solano Avenue shopping district in Albany and Berkeley. The East Bay is the birthplace of many musical acts, including Creedence Clearwater Revival , Country Joe and the Fish . Counting Crows , Yesterday and Today , Digital Underground , Green Day , Operation Ivy , Primus , Rancid , Set Your Goals , Tower of Power (whose debut album
23881-412: The region's residents are Hispanic/Latino , Asian , African/Black , Indian , or Pacific Islander , all of whom have a significant presence throughout the region. Most of the remaining two-fifths of the population is non-Hispanic White American . The most populous cities of the Bay Area are San Francisco, Oakland , and San Jose , the latter of which had a population of 969,655 in 2023, making San Jose
24048-563: The region. In the early morning of April 18, 1906, a large earthquake with an epicenter near the city of San Francisco hit the region. Immediate casualty estimates by the U.S. Army 's relief operations were 498 deaths in San Francisco, 64 deaths in Santa Rosa , and 102 in or near San Jose, for a total of about 700. More recent studies estimate the total death count to be over 3,000, with over 28,000 buildings destroyed. Rebuilding efforts began immediately. Amadeo Peter Giannini , owner of
24215-615: The region. The city inspected warehouses and live/work spaces after a fire broke out in the Ghost Ship warehouse , killing 36 people in 2016. Oakland is the second U.S. city, after Denver , to decriminalize psilocybin mushrooms . In June 2019, the City Council passed the resolution in a unanimous vote ending the investigation and imposition of criminal penalties for use and possession of natural entheogens . In November 2019, two homeless mothers and their children moved into
24382-480: The region. Between 1950 and 1960, San Francisco welcomed over 100,000 new residents, inland suburbs in the East Bay saw their populations double, Daly City 's population quadrupled, and Santa Clara 's population quintupled. By the early 1960s, the Bay Area and the rest of Northern California became the center of the counterculture movement . Telegraph Avenue in Berkeley and the Haight-Ashbury neighborhood in San Francisco were seen as centers of activity, with
24549-406: The region. Construction of the First transcontinental railroad from the Oakland Long Wharf attracted so many laborers from China that by 1870, eight percent of San Francisco's population was of Asian origin. The completion of the railroad connected the Bay Area with the rest of the United States, established a truly national marketplace for the trade of goods, and accelerated the urbanization of
24716-461: The sole link to the rest of the country until about 1879 when a more direct route across the Carquinez Strait was completed. Today, Altamont Corridor Express (ACE) operates commuter rail services through Niles Canyon to San Jose. Streetcar service across the East Bay was historically provided by the Key System , incorporated in 1902 as the San Francisco, Oakland, and San Jose Railway . An amalgamation of several streetcar companies established in
24883-439: The spread of plague. At the time of incorporation in 1852, Oakland had consisted of the territory that lay south of today's major intersection of San Pablo Avenue, Broadway, and Fourteenth Street. The city gradually annexed farmlands and settlements to the east and the north. Oakland's rise to industrial prominence, and its subsequent need for a seaport, led to the digging of a shipping and tidal channel in 1902. This resulted in
25050-414: The sub port of Los Angeles. After World War II, the United Nations was chartered in San Francisco, and in September 1951, the Treaty of San Francisco to re-establish peaceful relations between Japan and the Allied Powers was signed in San Francisco, entering into force a year later. In the years immediately following the war, the Bay Area saw a huge wave of immigration as populations increased across
25217-442: The time of colonization, the Ohlone peoples in the Bay Area primarily lived on the San Francisco Peninsula, in the South Bay and in the East Bay, and the Miwok primarily lived in the North Bay, northern East Bay, and Central Valley. Ohlone villages were spread across the Peninsula, East Bay, South Bay, as well as further south into the Monterey Bay area. There were eight major divisions of Ohlone people, four of which were based in
25384-403: The tip of the San Francisco Peninsula, the city of San Francisco is not considered part of the "Peninsula" subregion, but as a separate entity. The term "South Bay" has different meanings to different groups: Writing in 1959 for the Army Corps of Engineers , the United States Department of Commerce defined the South Bay as comprising five counties, corresponding to their two-way division of
25551-444: The titular city of San Francisco. Its eastern half, which runs alongside the Bay, is highly populated, while its less populated western coast traces the coastline of the Pacific Ocean and is known for its open space and hiking trails. Roughly coinciding with the borders of San Mateo County , it also includes the northwestern Santa Clara County cities of Palo Alto , Mountain View , and Los Altos . Although geographically located on
25718-418: The west coast of the Americas. Soromenho set sail on Manila Galleon San Agustin on July 5, 1595 and in early November they reached land between Point St. George and Trinidad Head , north of the Bay Area, in the Lost Coast . The expedition followed the coast southward and on November 7 the San Agustin anchored in Drakes Bay, and claimed the region as Puerto y Bahía de San Francisco . In late November,
25885-419: The western counties in the Bay Area, leaving only Alameda , Contra Costa , and Solano counties as remnants of a once large breeding range. Bald eagles were once common in the Bay Area, but habitat destruction and thinning of eggs from DDT poisoning reduced the California state population to 35 nesting pairs. Bald eagles disappeared from the Bay Area in 1915, and only began returning in recent years. In
26052-459: The winter season is cool and mild, the summer season is characterized by warm sunny days, while in San Francisco and areas closer to the Golden Gate strait, the summer season is periodically affected by fog. Due to the Bay Area's diverse topographic relief (itself the result of the clashing tectonic plates ), the region is home to numerous microclimates that lead to pronounced differences in climate and temperature over short distances. Within
26219-440: The women. The incident received nationwide coverage. The company that owns the house later said they would sell it to a nonprofit affordable housing group. As of 2019, Oakland's per-capita homeless rate was higher than San Francisco and Berkeley. Between 2014 and 2020, Oakland strengthened its protections for tenants in order to reduce the displacement of its long-time residents. Between January 2020 and March 2022, Oakland suffered
26386-425: Was admitted as the 31st state in 1850. A major earthquake and fire leveled much of San Francisco in 1906. During World War II , the Bay Area played a major role in America's war effort in the Asiatic-Pacific Theater , with the San Francisco Port of Embarkation , of which Fort Mason was one of 14 installations and location of the headquarters, acting as a primary embarkation point for American forces. Since then,
26553-415: Was first reported in Redwood Creek at Muir Beach in 1996, has since been spotted in the North Bay's Corte Madera Creek , the South Bay's Coyote Creek , as well as in 2010 in San Francisco Bay itself at the Richmond Marina . Other mammals include the internationally famous sea lions who began inhabiting San Francisco's Pier 39 after the 1989 Loma Prieta earthquake and the locally famous Humphrey
26720-404: Was from July 1997 to June 1998 with 47.76 inches (1,213.1 mm) and the driest from July 2020 to June 2021 with 8.03 inches (204.0 mm). The most rainfall in one month was 15.35 inches (390 mm) in January 1911. The most rainfall in 24 hours was 4.75 inches (121 mm) on December 31, 2022. Rainfall near the bayfront is only 23 inches (580 mm), but is higher in the Oakland Hills to
26887-443: Was more than any other single factor, responsible for opening up the West and the San Francisco Bay Area, in particular, to world trade. By 1817 sea otter in the area were practically eliminated. Since then, the California golden beaver re-established a presence in Alhambra Creek , followed by the Napa River and Sonoma Creek in the north, and the Guadalupe River and Coyote Creek in the south. The North American river otter which
27054-399: Was moved to Fremont in southern Alameda County. Also in 1916, the Fageol Motor Company chose East Oakland for their first factory, manufacturing farming tractors from 1918 to 1923. By 1920, Oakland was the home of numerous manufacturing industries, including metals , canneries, bakeries, internal combustion engines , automobiles, and shipbuilding. By 1929, when Chrysler expanded with
27221-409: Was once a mosaic of California coastal terrace prairie , oak woodland , and north coastal scrub . In the late 18th century, it became part of a large rancho grant in the colony of New Spain , and was known for its plentiful oak tree stands. Its land served as a resource when its hillside oak and redwood timber were logged to build San Francisco . The fertile flatland soils helped it become
27388-406: Was soon established four miles (6.4 km) to the southwest. During World War II, the East Bay Area was home to many war-related industries. Oakland's Moore Dry Dock Company expanded its shipbuilding capabilities and built over 100 ships. Valued at $ 100 million in 1943, Oakland's canning industry was its second-most-valuable war contribution after shipbuilding. The largest canneries were in
27555-511: Was the Black Panther Party . The East Bay is home to many of the restaurants central to the creation of California cuisine , including Chez Panisse . All vehicular crossings of the San Francisco Bay land in the counties comprising the East Bay. Interstate highways in the East Bay include Interstates 80 , 580 , 680 , 880 , 980 , and 238 . California State Routes 24 , 4 , 13 , 92 , 160 , 242 , 84 , and Richmond Parkway are limited access highways for at least part of their lengths in
27722-457: Was undeveloped land. Cities in the Diablo Valley, including Concord and Walnut Creek , saw their populations increase tenfold or more between 1950 and 1970. The addition of the BART commuter rail system in 1972 further encouraged development in increasingly far-flung regions of the East Bay. Today, the valleys east of the Berkeley Hills contain large affluent suburban communities such as Walnut Creek, San Ramon and Pleasanton . The East Bay
27889-443: Was within the shares given to Antonio Maria and Vicente. The portion of the parcel that is now Oakland was called Encinar (misrendered at an early date and carried forward as "encinal") – Spanish for " oak grove " – due to the large oak forest that covered the area, which eventually led to the city's name. According to Stanford University historian Albert Camarillo, the Peralta family struggled to keep their land after
#40959