95-496: Hillsborough County is the name of two counties in the United States: Hillsborough County, Florida Hillsborough County, New Hampshire [REDACTED] Topics referred to by the same term This disambiguation page lists articles about distinct geographical locations with the same name. If an internal link led you here, you may wish to change
190-481: A famous world map was produced. In 1506 Hernán Cortés took part in the conquest of Hispaniola and Cuba, receiving a large estate of land and indigenous slaves for his effort. In 1510 he accompanied Diego Velázquez de Cuéllar , an aide of the governor of Hispaniola, in his expedition to conquer Cuba. In 1518 Velázquez put him in command of an expedition to explore and secure the interior of Mexico for colonization. In 1517 Francisco Hernández de Córdoba discovered
285-582: A hypoxic dead zone that runs east–west along the Texas–Louisiana coastline. In July 2008, researchers reported that between 1985 and 2008, the area roughly doubled in size. It was 8,776 square miles (22,730 km ) in 2017, the largest ever recorded. Poor agricultural practices in the northern portion of the Gulf of Mexico have led to a tremendous increase of nitrogen and phosphorus in neighboring marine ecosystems, which has resulted in algae blooms and
380-480: A magnitude 6.0 earthquake occurred about 250 miles (400 km) west-southwest of Anna Maria, Florida . The quake was reportedly felt from Louisiana to Florida. There were no reports of damage or injuries. Items were knocked from shelves and seiches were observed in swimming pools in parts of Florida. The earthquake was described by the USGS as an intraplate earthquake , the largest and most widely felt recorded in
475-764: A marginal sea of the Atlantic Ocean , mostly surrounded by the North American continent. It is bounded on the northeast, north and northwest by the Gulf Coast of the United States ; on the southwest and south by the Mexican states of Tamaulipas , Veracruz , Tabasco , Campeche , Yucatán , and Quintana Roo ; and on the southeast by Cuba . The Southern U.S. states of Texas , Louisiana , Mississippi , Alabama , and Florida , which border
570-484: A 2.56% from two or more races. 17.99% of the population were Hispanic or Latino of any race. The county was the thirty-second most populous county in the nation. Of the 391,357 households, 31.40% had children under the age of 18 living with them, 47.70% were married couples living together, 13.20% had a female householder with no husband present, and 34.80% were not families. Roughly 26.90% of all households were made up of individuals, and 8.10% had someone living alone who
665-726: A documentary about the project, short videos and video updates during the expedition. Video footage from the ROV was an integral part of this outreach and used extensively in the Mystery Mardi Gras Shipwreck documentary. On July 30, 1942, the Robert E. Lee , captained by William C. Heath, was torpedoed by the German submarine U-166 . She was sailing southeast of the entrance to the Mississippi River when
760-944: A family was $ 59,886. Males had a median income of $ 43,125 versus $ 35,184 for females. The per capita income for the county was $ 27,062. About 10.7% of families and 14.2% of the population were below the poverty line , including 19.9% of those under age 18 and 9.6% of those aged 65 or over. In 2010, 15.1% of the county's population was foreign born , with 44.5% being naturalized American citizens . Of foreign-born residents, 67.5% were born in Latin America , 16.7% born in Asia , 9.2% were born in Europe , 3.2% born in Africa , 3.1% in North America , and 0.3% were born in Oceania . As of
855-587: A household in the county was $ 40,663, and for a family was $ 48,223. Males had a median income of $ 34,111 versus $ 26,962 for females. The per capita income for the county was $ 21,812. About 9.10% of families and 12.50% of the population were below the poverty line , including 17.20% of those under age 18 and 10.00% of those age 65 or over. Source: U.S. Census As of 2010, 74.59% of the population spoke only English at home, 19.52% spoke Spanish , 0.56% French Creole (mainly Haitian Creole ), and 0.51% spoke Vietnamese as their mother language . In total, 25.41% of
950-492: A lack of available oxygen. Occurrences of masculinization and estrogen suppression were observed as a result. An October 2007 study of the Atlantic croaker found a disproportioned sex ratio of 61% males to 39% females in hypoxic sites. This was compared with a 52% to 48% male-female ratio found in reference sites, showing an impairment of reproductive output for fish populations inhabiting hypoxic coastal zones. According to
1045-480: A large scale from many of the bays and sounds. Other important industries along the coast include shipping, petrochemical processing and storage, military use, paper manufacture, and tourism. The gulf's warm water temperature can feed powerful Atlantic hurricanes causing extensive human death and other destruction as happened with Hurricane Katrina in 2005. In the Atlantic, a hurricane will draw up cool water from
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#17327724154351140-422: A serious threat to marine life and adjacent coastal wetlands and to the livelihoods of Gulf Coast shrimpers and fishermen. Coast Guard Rear Admiral Sally Brice O'Hare stated that the U.S. government will be "employing booms, skimmers, chemical dispersants and controlled burns" to combat the oil spill. By May 1 the oil spill cleanup efforts were underway but hampered by rough seas and the "tea like" consistency of
1235-582: Is Tampa . Hillsborough County is part of the Tampa– St. Petersburg – Clearwater Metropolitan Statistical Area . Hillsborough County was created on January 25, 1834, from Alachua and Monroe Counties, during the U.S. territorial period (1822–1845). The new county was named for Wills Hill , the Earl of Hillsborough , who served as British Secretary of State for the Colonies from 1768 to 1772. The County
1330-631: Is an excellent example of a passive margin . The continental shelf is quite wide at most points along the coast, most notably at the Florida and Yucatán Peninsulas. The shelf is exploited for its oil by means of offshore drilling rigs, most of which are situated in the western gulf and in the Bay of Campeche. Another important commercial activity is fishing; major catches include red snapper , amberjack , tilefish , swordfish , and various grouper , as well as shrimp and crabs. Oysters are also harvested on
1425-548: Is around 888 square miles (2,300 km ), more than 84% of the total land area. Municipalities account for 163 square miles (420 km ). The modern boundaries of the county place it midway along the west coast of Florida. A narrow portion of Hillsborough County to the south, consisting almost exclusively of water, extends west to the Gulf of Mexico roughly along the Tampa Port Shipping Channel. This has
1520-723: Is connected to part of the Atlantic Ocean through the Straits of Florida between the U.S. and Cuba, and with the Caribbean Sea via the Yucatán Channel between Mexico and Cuba. Because of its narrow connection to the Atlantic Ocean, the gulf experiences very small tidal ranges . The size of the gulf basin is approximately 1.6 million km (620,000 sq mi). Almost half of the basin consists of shallow continental shelf waters. The volume of water in
1615-404: Is four to five times saltier than the rest of the water. The first exploration of the site was unmanned, using Hercules and in 2015 a team of three used the deep-submergence vehicle Alvin . The site cannot sustain any kind of life other than bacteria , mussels with a symbiotic relationship , tube worms and certain kinds of shrimp . It has been called the "Jacuzzi of Despair". Because it
1710-550: Is located in the west-central portion of the U.S. state of Florida . In the 2020 census, the population was 1,459,762, making it the fourth-most populous county in Florida and the most populous county outside the Miami metropolitan area . A 2021 estimate has the population of Hillsborough County at 1,512,070 people with a yearly growth rate of 1.34%, which itself is greater than the populations of 12 states according to their 2019 population estimates. Its county seat and largest city
1805-531: Is warmer than the surrounding water (65 °F or 18 °C compared to 39 °F or 4 °C), animals are attracted to it but cannot survive once they enter it. The Gulf of Mexico is 41 percent continental slope , 32 percent continental shelf , and 24 percent abyssal plain with the greatest depth of 12,467 feet in the Sigsbee Deep . Seven main areas are given as: As early as the Maya civilization ,
1900-591: The Deepwater Horizon oil platform, located in the Mississippi Canyon about 40 miles (64 km) off the Louisiana coast, suffered a catastrophic explosion ; it sank a day and a half later. It was in the process of being sealed with concrete for temporary abandonment, to avoid environmental problems. Although initial reports indicated that relatively little oil had leaked, by April 24 it
1995-518: The Bureau of Ocean Energy Management, Regulation and Enforcement ) to help predict the potential impacts of future oil/gas explorations. Since 1979, the specimens have been deposited in the national collections of the National Museum of Natural History. The major environmental threats to the gulf are agricultural runoff and oil drilling . There are 27,000 abandoned oil and gas wells beneath
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#17327724154352090-509: The C. W. Bill Young Regional Reservoir and Lithia Springs , one of the largest natural springs in Florida. As of the 2020 United States census , there were 1,459,762 people, 539,919 households, and 338,683 families residing in the county. U.S. Census Bureau 2010 Ethnic/Race Demographics: In 2010, 6.0% of the Hillsborough's population considered themselves to be of only American ancestry (regardless of race or ethnicity.) Of
2185-697: The Marathon Uplift in west Texas and the Ouachita Mountains of Oklahoma , and to Alabama where it linked directly to the Appalachian Mountains . It was created by the collision of continental plates that formed Pangaea. As interpreted by Roy Van Arsdale and Randel T. Cox, this mountain range was breached in the late Cretaceous by the formation of the Mississippi Embayment . The rifting that created
2280-650: The Mardi Gras sank around the early 19th century about 35 mi (56 km) off the coast of Louisiana in 4,000 feet (1,200 m) of water. She is believed to have been a privateer or trader. The shipwreck, whose real identity remains a mystery, lay forgotten at the bottom of the sea until it was discovered in 2002 by an oilfield inspection crew working for the Okeanos Gas Gathering Company (OGGC). In 2007 an expedition led by Texas A&M University and funded by OGGC under an agreement with
2375-572: The Mesozoic and all of the Cenozoic further depressed the underlying crust to its current position about 10–20 km (6.2–12.4 mi) below sea level. Particularly during the Cenozoic, a time of relative stability for the coastal zones, thick clastic wedges built out the continental shelf along the northwestern and northern margins of the basin. To the east, the stable Florida Platform
2470-557: The National Response Center , the oil industry has thousands of minor accidents in the Gulf of Mexico every year. In June 1979, the Ixtoc I oil platform in the Bay of Campeche suffered a blowout leading to a catastrophic explosion, which resulted in a massive oil spill that continued for nine months before the well was finally capped. This was the largest oil spill in the Gulf of Mexico to date. On April 20, 2010,
2565-520: The St. Petersburg-Tampa Airboat Line initiated the first scheduled commercial airline service in the world, from St. Petersburg to Tampa. According to the U.S. Census Bureau , the county has a total area of 1,266 square miles (3,280 km ), of which 1,020 square miles (2,600 km ) are land and 246 square miles (640 km ) (19.4%) are covered by water. About 158.27 miles (254.71 km) of shoreline are on Tampa Bay. The county's unincorporated area
2660-688: The Washington Post's list of the 2000 most challenging schools in America. The Tampa Public Library opened in 1917. The following notable libraries are part of the Hillsborough County Public Library Cooperative: Several agencies provide law enforcement to the residents of Hillsborough County. They are all accredited and fully certified law enforcement agencies by the FDLE. The HCSO is
2755-538: The population spoke a language other than English as their primary language . According to the Secretary of State's office, Democrats are a plurality of registered voters in Hillsborough County. Hillsborough County tends to lean Democratic , having not been won by a Republican presidential candidate from 2004 until 2024. For the last quarter-century, it has been a powerful swing county in one of
2850-401: The 536,092 households, 29.74% had children under the age of 18 living with them, 44.25% were married couples living together, 14.76% had a female householder with no husband present, and 35.69% were not families. About 27.12% of all households were made up of individuals, and 7.96% (2.35% male and 5.61% female) had someone living alone who was 65 years of age or older. The average household size
2945-473: The Atlantic Ocean was established that the deposition of Louann Salt ceased. Seafloor spreading stopped at the end of the Jurassic, about 145–150 million years ago. During the late Jurassic through early Cretaceous, the basin experienced a period of cooling and subsidence of the crust underlying it. The subsidence was the result of a combination of crustal stretching, cooling, and loading. Initially,
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3040-422: The Atlantic Ocean. This flooded the opening basin to create an enclosed marginal sea. The subsiding transitional crust was blanketed by the widespread deposition of Louann Salt and associated anhydrite evaporites . During the late Jurassic, continued rifting widened the basin and progressed to the point that seafloor spreading and formation of oceanic crust occurred. At this point, sufficient circulation with
3135-652: The Gulf of Mexico was used as a trade route off the coast of the Yucatán Peninsula and present-day Veracruz . Although the Spanish voyage of Christopher Columbus was credited with the discovery of the Americas by Europeans, the ships in his four voyages did not reach the Gulf of Mexico. Instead, the Spanish sailed into the Caribbean around Cuba and Hispaniola . The first alleged European exploration of
3230-491: The Gulf of Mexico was by Amerigo Vespucci in 1497. Vespucci is purported to have followed the coastal land mass of Central America before returning to the Atlantic Ocean via the Straits of Florida between Florida and Cuba. However, this first voyage of 1497 is widely disputed, and many historians doubt that it took place as described. In his letters, Vespucci described this trip, and once Juan de la Cosa returned to Spain,
3325-679: The Light on Cape San Antonio in Cuba, through this island to the meridian of 83°W and to the Northward along this meridian to the latitude of the South point of the Dry Tortugas (24°35'N), along this parallel Eastward to Rebecca Shoal (82°35'W) thence through the shoals and Florida Keys to the mainland at the eastern end of Florida Bay and all the narrow waters between the Dry Tortugas and
3420-704: The Minerals Management Service (now BOEM ) was launched to undertake the deepest scientific archaeological excavation ever attempted at that time to study the site on the seafloor and recover artifacts for eventual public display in the Louisiana State Museum . As part of the project educational outreach Nautilus Productions in partnership with BOEM, Texas A&M University, the Florida Public Archaeology Network and Veolia Environmental produced
3515-603: The United States of America and the Republic of Cuba, of December 16, 1977. Mexico and United States: Treaty to resolve pending boundary differences and maintain the Rio Grande and Colorado River as the international boundary, of November 23, 1970; Treaty on maritime boundaries between the United States of America and the United Mexican States (Caribbean Sea and Pacific Ocean), of May 4, 1978, and treaty on
3610-612: The United States, in accordance with Mexico's domestic legislation. On March 13, 2009, the CLCS accepted Mexico's arguments for extending its continental shelf up to 350 nautical miles (650 km; 400 mi) into the Western Polygon. Since this would extend Mexico's continental shelf well into territory claimed by the United States, however, Mexico and the U.S. would need to enter a bilateral agreement based on international law that delimits their respective claims. A ship now called
3705-602: The Yucatán Peninsula. This was the first European encounter with an advanced civilization in the Americas , with solidly built buildings and a complex social organization which they recognized as being comparable to those of the Old World ; they also had reason to expect that this new land would have gold . All of this encouraged two further expeditions, the first in 1518 under the command of Juan de Grijalva , and
3800-768: The attack. One officer, nine crewmen and 15 passengers were lost. The passengers aboard Robert E. Lee were primarily survivors of previous torpedo attacks by German U-boats. The wreck's location was discovered during the C & C Marine survey that located the U-166 . In 2001 the wreck of U-166 was found in 5,000 feet (1,500 m) of water, less than two miles (3.2 km) from where it had attacked Robert E. Lee . Various biota include chemosynthetic communities near cold seeps and non chemosynthetic communities such as bacteria and other micro- benthos , meiofauna , macrofauna , and megafauna (larger organisms such as crabs , sea pens , crinoids , demersal fish , cetaceans , and
3895-435: The average annual employment in Hillsborough County was 563,292. The percentages of total employment by industry were: In 2011, sales of all agricultural commodities produced in Hillsborough County were over $ 832,410,300. The largest crop by value was strawberries at over $ 388 million. Values of various crops included: Hillsborough County Public Schools operate the public schools in the county. Hillsborough County has
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3990-474: The basin is roughly 2.4 × 10 cubic kilometers (5.8 × 10 cubic miles). The gulf is one of the most important offshore petroleum production regions in the world, making up one-sixth of the United States' total production. The International Hydrographic Organization defines the southeast limit of the Gulf of Mexico as: A line joining Cape Catoche Light ( 21°37′N 87°04′W / 21.617°N 87.067°W / 21.617; -87.067 ) with
4085-514: The basin was associated with zones of weakness within Pangaea, including sutures where the Laurentia , South American , and African plates collided to create it. First, there was a late Triassic–early Jurassic phase of rifting during which rift valleys formed and filled with continental red beds . Second, as rifting progressed through early and middle Jurassic times, the continental crust
4180-925: The board, and the administrative staff are responsible for the implementation of these policies. The board also serves as the Environmental Protection Commission. Individual board members serve on various other boards, authorities, and commissions such as the Hillsborough Area Regional Transit Authority, Tampa Bay Regional Planning Council, Tampa Bay Water, Aviation Authority, Expressway Authority, Sports Authority, Port Authority, Arts Council of Hillsborough County, Children's Board, Metropolitan Planning Organization, and Council of Governments. Hillsborough County's discretionary sales tax rate increased from 1% to 2.5% in January 2019. When combined with
4275-543: The captain of the next expedition to Yucatán. In 1523, a treasure ship was wrecked en route at Padre Island , Texas. When word of the disaster reached Mexico City, the viceroy requested a rescue fleet and sent Ángel de Villafañe from Mexico City, marching overland to find the treasure-laden vessels. Villafañe traveled to Pánuco and hired a ship to transport him to the site, which had already been visited from that community. He arrived in time to greet García de Escalante Alvarado (a nephew of Pedro de Alvarado ), commander of
4370-437: The census of 2000, 998,948 people, 391,357 households, and 255,164 families resided in the county. The population density was 951 inhabitants per square mile (367/km ). The 425,962 housing units averaged 405 per square mile (156/km ). The racial makeup of the county was 75.17% White (63.3% Non-Hispanic White ), 14.96% Black or African American, 0.39% Native American, 2.20% Asian, 0.07% Pacific Islander, 4.66% from other races, and
4465-560: The charter. These amendments must be presented to voters for approval. One amendment was approved in November 2002, adding the position of County Internal Performance Auditor to the government structure. This position reports directly to the County Commission. The current administrator is Bonnie M. Wise, who took office on July 1, 2020, replacing Mike Merrill, who had served as administrator since 2010. Wise previously served as
4560-495: The coast. On April 7, 1528, they spotted land north of what is now Tampa Bay . They turned south and traveled for two days looking for a great harbor the master pilot Miruelo knew of. Sometime during these two days, one of the five remaining ships was lost on the rugged coast, but nothing else is known of it. In 1697 French sailor Pierre Le Moyne d'Iberville was chosen by the Minister of Marine to lead an expedition to rediscover
4655-497: The coastline spans 1,680 miles (2,700 km), receiving water from 33 major rivers that drain 31 states and 2 Canadian provinces. The southwestern and southern shores lie along the Mexican states of Tamaulipas, Veracruz, Tabasco, Campeche, Yucatán, and the northernmost tip of Quintana Roo. The Mexican coastline spans 1,743 miles (2,805 km). On its southeast quadrant, the gulf is bordered by Cuba. It supports major American, Mexican and Cuban fishing industries. The outer margins of
4750-407: The combination of crustal stretching and cooling caused about 5–7 km (3.1–4.3 mi) of tectonic subsidence of the central thin transitional and oceanic crust. Because subsidence occurred faster than sediment could fill it, the basin expanded and deepened. Later, loading of the crust within the basin and adjacent coastal plain by the accumulation of kilometers of sediments during the rest of
4845-453: The county administrator, appointed by county commissioners and charged by the charter to faithfully implement the powers of the board. The charter provides for a county attorney, to be hired by the county administrator with the advice and consent of the county commissioners. The charter contains a provision for a charter review board appointed by County Commissioners every five years to conduct a study of county government and propose amendments to
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#17327724154354940-402: The county and the welfare of its residents. These five countywide elected positions have specific responsibilities under the county charter: Under a charter ordinance that went into effect May 1985, county commissioners are directed to perform legislative functions of government by developing policy for the management of Hillsborough County. The county administrator, a professional appointed by
5035-486: The county in his 2010, 2016 and 2022 senatorial campaigns and Republican Governor Ron Desantis won it in his 2022 gubernatorial campaign after the county supported Democrats for the previous three gubernatorial elections since 2010. In 2008 , Barack Obama won the county by seven points, the first Democrat to capture the county since Bill Clinton 's re-election victory in 1996. Obama won Hillsborough again in 2012 over Republican presidential nominee Mitt Romney by roughly
5130-456: The county's deputy administrator and Tampa's chief financial officer. Of the seven members of the Board of County Commissioners for Hillsborough County, four are elected from single-member districts, and three are elected county-wide. The board approves the county's operating and capital budgets and the county's capital-improvement program. It may take action on any programs for the improvement of
5225-522: The county. They, along with the Hillsborough County Public Schools Security Service officers, are known as school resource officers. Generally, deputies are assigned to schools outside of the incorporated cities and HCPSSS officers are assigned to schools within city limits. For extended services, other local agencies may be called in for support. Most crossing guards are employed in a unsworn capacity by
5320-411: The courthouse being handled by the sheriff's office, the inmates remain in the custody of HCSO during the duration of the process until handed over to another jurisdiction, state, or federal custody. As of March 2016 the following agencies have auxiliary or reserve deputy, officer, or trooper positions. Gulf of Mexico The Gulf of Mexico ( Spanish : Golfo de México ) is an ocean basin and
5415-662: The delimitation of the continental shelf in the western Gulf of Mexico beyond 200 nautical miles (370 km; 230 mi), of June 9, 2000. On December 13, 2007, Mexico submitted information to the Commission on the Limits of the Continental Shelf (CLCS) regarding the extension of Mexico's continental shelf beyond 200 nautical miles. Mexico sought an extension of its continental shelf in the Western Polygon based on international law, UNCLOS, and bilateral treaties with
5510-401: The depths and making it less likely that further hurricanes will follow in its wake (warm water being one of the preconditions necessary for their formation). However, the gulf is shallower; when a hurricane passes over the water temperature may drop but it soon rebounds and becomes capable of supporting another tropical storm. From 1970 to 2020, surface temperatures warmed at approximately twice
5605-551: The effect of keeping Hillsborough County from being technically landlocked. The central portion of the Sunshine Skyway Bridge is in Hillsborough County. So is Egmont Key , at the entrance to Tampa Bay ; this narrow strip of land separates Pinellas County from Manatee County. The northernmost tip of a spoil island just west of Port Manatee also lies in Hillsborough County. Hillsborough is home to Alafia River State Park and Hillsborough River state parks, and to
5700-499: The eighth-largest school district in the United States consisting of 206 schools (133 elementary schools, 42 middle schools, two K-8 schools, 27 traditional high schools, and four career centers, with 73 additional schools including charter, ESE, etc.). In 2013, 12 of Hillsborough County's 27 public high schools were ranked in Newsweek 's list of America's Best High Schools. In 2012 and 2013, all 27 public high schools were included on
5795-472: The explosion destroyed the #3 hold, vented through the B and C decks and damaged the engines, the radio compartment and the steering gear. After the attack she was under escort by USS PC-566 , captained by Lieutenant Commander Herbert G. Claudius, en route to New Orleans . PC-566 began dropping depth charges on a sonar contact, sinking U-166 . The badly damaged Robert E. Lee first listed to port then to starboard and finally sank within about 15 minutes of
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#17327724154355890-542: The extinct Caribbean monk seal ) are living in the Gulf of Mexico. Recently, resident Bryde's whales within the gulf were classified as an endemic, unique subspecies and making them as one of the most endangered whales in the world. The Gulf of Mexico yields more fish, shrimp, and shellfish annually than the south and mid-Atlantic , Chesapeake , and New England areas combined. The Smithsonian Institution Gulf of Mexico holdings are expected to provide an important baseline of understanding for future scientific studies on
5985-440: The gulf on the north, are often referred to as the " Third Coast " of the United States (in addition to its Atlantic and Pacific coasts). The Gulf of Mexico took shape approximately 300 million years ago as a result of plate tectonics . The Gulf of Mexico basin is roughly oval in shape and is approximately 810 nautical miles (1,500 km; 930 mi) wide. Its floor consists of sedimentary rocks and recent sediments. It
6080-499: The gulf's first such study estimated concentrations that rival the highest globally reported. There are frequent " red tide " algae blooms that kill fish and marine mammals and cause respiratory problems in humans and some domestic animals when the blooms reach close to shore. This has especially been plaguing the southwest and southern Florida coast, from the Florida Keys to north of Pasco County, Florida . The gulf contains
6175-505: The gulf's shoreline is fringed by numerous bays and smaller inlets. Stream that empty into the gulf include the Mississippi River and the Rio Grande in the northern gulf, and the Grijalva and Usumacinta rivers in the southern gulf. The land that forms the gulf's coast, including many long, narrow barrier islands, is almost uniformly low-lying and is characterized by marshes and swamps as well as stretches of sandy beach. The Gulf of Mexico
6270-419: The gulf. These have generally not been checked for potential environmental problems. In 1973 the United States Environmental Protection Agency prohibited the dumping of undiluted chemical waste by manufacturing interests into the gulf, and the military confessed to similar behavior in waters off Horn Island . Microplastics within semi-enclosed seas like the gulf have been reported in high concentrations, and
6365-426: The impact of the Deepwater Horizon oil spill . In Congressional testimony, Dr. Jonathan Coddington, associate director of Research and Collections at the Smithsonian's National Museum of Natural History , provides a detailed overview of the Gulf collections and their sources which Museum staff have made available on an online map. The samples were collected for years by the former Minerals Management Service (renamed
6460-566: The largest local law enforcement agency in Hillsborough County. Headquartered in the Ybor City District of Tampa, it is responsible for law enforcement services in the unincorporated areas of the county. The county is divided into four districts, each containing multiple sectors identified with a letter (example: H – hotel sector, G – golf sector). The districts and sectors are cut to exclude areas covered by other local agencies. The school district uses two agencies for security. The sheriff's office employs deputies assigned to various schools throughout
6555-435: The link to point directly to the intended article. Retrieved from " https://en.wikipedia.org/w/index.php?title=Hillsborough_County&oldid=932875606 " Category : United States county name disambiguation pages Hidden categories: Short description is different from Wikidata All article disambiguation pages All disambiguation pages Hillsborough County, Florida Hillsborough County
6650-410: The loser only in 1992 and 2016. The southern portion of the county, around Tampa, is powerfully Democratic, while the northern and eastern portions are heavily Republican. On the statewide level, the county also tends to lean Democratic with Democrats Bill Nelson for senator and Andrew Gillum for governor both winning the county in the 2018 elections. However, Republican senator Marco Rubio did win
6745-432: The mainland being considered to be within the Gulf. The consensus among geologists is that before the late Triassic , the Gulf of Mexico did not exist. Before the Late Triassic, the area consisted of dry land, which included continental crust that now underlies Yucatán , within the middle of the supercontinent Pangaea . This land lay south of a continuous mountain range that extended from north-central Mexico, through
6840-568: The mainland, Biloxi , with his brother Jean-Baptiste Le Moyne de Bienville . On May 1 he completed Fort Maurepas on the northeast side of the Bay of Biloxi. On May 4 d'Iberville sailed for France leaving his teenage brother, Jean-Baptiste Le Moyne , as second in command to the French commandant. The Gulf of Mexico's eastern, northern, and northwestern shores lie along the US states of Florida, Alabama, Mississippi, Louisiana, and Texas. The US portion of
6935-613: The mouth of the Mississippi River and to colonize Louisiana which the English coveted. D'Iberville's fleet sailed from Brest on October 24, 1698. On January 25, 1699, d'Iberville reached Santa Rosa Island near Pensacola founded by the Spanish; he sailed from there to Mobile Bay and explored Massacre Island, later renamed Dauphin Island . He cast anchor between Cat Island and Ship Island ; and on February 13 he went to
7030-426: The nation's most important swing states. It is part of the politically important I-4 Corridor between Tampa Bay and Orlando , an area that historically decides most elections in Florida. Hillsborough was considered a bellwether county, voting for the statewide winner in every presidential election from 1964–2012. It has also voted for the winner of the presidency in every election since 1928 except twice, voting for
7125-462: The oil. Cleanup operations were resumed after conditions became favorable. On May 27 the USGS had revised the estimate of the leak from 5,000 barrels per day (790 m /d) to 12,000–19,000 barrels per day (3,000 m /d) an increase from earlier estimates. On July 15 BP announced that the leak had stopped for the first time in 88 days. In July BP reached an $ 18.7bn settlement with the U.S. government,
7220-463: The only jails in the county, other than juvenile detention facilities, the work release center, or holding cells located at multiple police stations and sheriff offices, all local agencies transport persons being arrested to one of the county jails. The sheriff's office also provides security and protective services at the county courthouses in Tampa. With a majority of transportation of inmates to and from
7315-612: The past three decades in the region. According to the September 11, 2006 issue of The Tampa Tribune , earthquake tremors were last felt in Florida in 1952, recorded in Quincy , 20 miles (32 km) northwest of Tallahassee . Cuba and Mexico: Exchange of notes constituting an agreement on the delimitation of the exclusive economic zone of Mexico in the sector adjacent to Cuban maritime areas (with map), of July 26, 1976. Cuba and United States: Maritime boundary agreement between
7410-474: The rate observed for the global ocean surface. The gulf is considered aseismic ; however, mild tremors have been recorded throughout history (usually 5.0 or less on the Richter magnitude scale ). Earthquakes may be caused by interactions between sediment loading on the sea floor and adjustment by the crust. On September 10, 2006, the U.S. Geological Survey National Earthquake Information Center reported that
7505-474: The salvage operation, when Alvarado arrived by sea on July 22, 1554. The team labored until September 12 to salvage the Padre Island treasure. This loss, in combination with other ship disasters around the Gulf of Mexico, gave rise to a plan for establishing a settlement on the northern Gulf Coast to protect shipping and more quickly rescue castaways. As a result, the expedition of Tristán de Luna y Arellano
7600-602: The same margin. In 2016 , Donald Trump became the first Republican since Calvin Coolidge in 1924 to win a presidential election without carrying the county. Donald Trump broke the Democratic streak in the county in 2024, when he carried the county by a narrow majority. This reflects the general trend in Florida towards the Republican Party in recent elections. A home rule charter for Hillsborough County
7695-525: The second in 1519 under the command of Hernán Cortés , which led to the Spanish exploration, military invasion, and ultimately settlement and colonization known as the Conquest of Mexico . Hernández did not live to see the continuation of his work: he died in 1517, the year of his expedition, as the result of the injuries and the extreme thirst suffered during the voyage, and disappointed in the knowledge that Diego Velázquez had given precedence to Grijalva as
7790-483: The sheriff's office. Plant City maintains its own police department and is the third-largest police agency in terms of sworn officers following HCSO and TPD. The agency provides law-enforcement services to the residents of Plant City and occasionally provides backup to HCSO, answering calls close to their jurisdiction. The TPD is the second-largest agency in the county. They serve the cities of Tampa, New Tampa, Port of Tampa, and other areas surrounding. With these being
7885-470: The state of Florida's 6%, the rate is 8.5%, the highest in Florida. The rate includes two surcharges approved by voter referendum in November 2018, 1% for transportation and 1/2% for schools. It is only collected on the first $ 5000 of any large purchase. In the early 20th century, Hillsborough's economy was predominantly based on cigar-making and agriculture. In 2012, Hillsborough had the second-largest agricultural output among Florida's counties. As of 2010,
7980-409: The states of Alabama, Florida, Louisiana, Mississippi and Texas, as well as 400 local authorities. As of 2015 BP's cost for the clean-up, environmental and economic damages and penalties has reached $ 54bn. On May 12, 2016, a release of oil from subsea infrastructure on Shell's Brutus oil rig released 2,100 barrels of oil. This leak created a visible 2 by 13 miles (3.2 by 20.9 km) oil slick in
8075-560: The strongest ocean currents known, originates in the gulf as a continuation of the Caribbean Current –Yucatán Current– Loop Current system. Other circulation features include a permanent cyclonic gyre in the Bay of Campeche, as well as anticyclonic gyres which are shed by the Loop Current and travel westward where they eventually dissipate. The Bay of Campeche constitutes a major arm of the Gulf of Mexico. Additionally,
8170-414: The wide continental shelves of Yucatán and Florida receive cooler, nutrient-enriched waters from the deep by a process known as upwelling , which stimulates plankton growth in the euphotic zone . This attracts fish, shrimp, and squid. River drainage and atmospheric fallout from industrial coastal cities also provide nutrients to the coastal zone. The Gulf Stream , a warm Atlantic Ocean current and one of
8265-418: Was 2.55 and the average family size was 3.11. The age distribution was 23.9% under the age of 18, 10.5% from 18 to 24, 28.3% from 25 to 44, 25.4% from 45 to 64, and 11.8% were 65 years of age or older. The median age was 36.1 years. For every 100 females, there were 95.1 males. For every 100 females age 18 and over, there were 92.1 males. The median income for a household in the county was $ 49,536, and for
8360-430: Was 65 years of age or older. The average household size was 2.51 and the average family size was 3.07. The age distribution was: 25.30% under the age of 18, 9.30% from 18 to 24, 31.70% from 25 to 44, 21.70% from 45 to 64, and 12.00% were 65 years of age or older. The median age was 35 years. For every 100 females there were 95.80 males. For every 100 females age 18 and over, there were 92.70 males. The median income for
8455-468: Was approved by voters in a county-wide referendum held in September 1983, and the first county commissioners elected under this new charter took office on May 28, 1985. The charter divides the power of county government between legislative and executive branches. The Board of County Commissioners, which composes the legislative branch, sets overall policy by means of ordinances, resolutions, and motions. The executive powers of county government are vested in
8550-462: Was claimed by BP that approximately 1,000 barrels (160 m ) of oil per day were issuing from the wellhead , about 1-mile (1.6 km) below the surface on the ocean floor. On April 29, the U.S. government revealed that approximately 5,000 barrels (790 m ) per day, five times the original estimate, were pouring into the gulf from the wellhead. The resulting oil slick quickly expanded to cover hundreds of square miles of ocean surface, posing
8645-403: Was created through efforts by Augustus Steele. The county's 1834 area was much larger and included eight other present-day counties: Charlotte County , DeSoto , Hardee , Manatee , Pasco , Pinellas , Polk , and Sarasota . The last significant change in Hillsborough County's borders was the separation of its western section to create Pinellas County in 1911. On New Year's Day in 1914,
8740-555: Was involved during the latest Cretaceous and early Paleogene periods in a compressive deformation episode, the Laramide Orogeny , which created the Sierra Madre Oriental of eastern Mexico. In 2014, Erik Cordes of Temple University and others discovered a brine pool 3,300 feet (1,000 m) below the gulf's surface, with a circumference of 100 feet (30 m) and 12 feet (3.7 m) feet deep, which
8835-402: Was not covered by the sea until the latest Jurassic or the beginning of Cretaceous time. The Yucatán Platform was emergent until the mid-Cretaceous. After both platforms were submerged, the formation of carbonates and evaporites has characterized the geologic history of these two stable areas. Most of the basin was rimmed during the early Cretaceous by carbonate platforms, and its western flank
8930-514: Was sent and landed at Pensacola Bay on August 15, 1559. On December 11, 1526, Charles V granted Pánfilo de Narváez a license to claim what is now the Gulf Coast of the United States, known as the Narváez expedition . The contract gave him one year to gather an army, leave Spain, be large enough to found at least two towns of 100 people each, and garrison two more fortresses anywhere along
9025-482: Was stretched and thinned. This thinning created a broad zone of transitional crust, which displays modest and uneven thinning with block faulting and a broad zone of uniformly thinned transitional crust, which is half the typical 40- kilometer (25 mi ) thickness of continental crust. It was at this time that rifting first created a connection to the Pacific Ocean across central Mexico and later eastward to
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