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24-578: Potter Valley is a census-designated place in Mendocino County, California , United States. It is located 18 miles (29 km) north-northeast of Ukiah , at an elevation of 948 feet (289 m) at the headwaters of the East Fork Russian River . The CDP population was 665 at the 2020 census. In 1852, when William and Thomas Potter and Mose Briggs first entered what would become known as Potter Valley, they were searching for

48-770: A hot-summer Mediterranean climate ( Csa ) typical of the interior of Northern California , with hot, dry summers and cool, wet winters, along with great diurnal temperature variation . The 2010 United States Census reported that the Potter Valley CDP had a population of 646. The population density was 159.2 inhabitants per square mile (61.5/km). The racial makeup of Potter Valley was 516 (79.9%) White , 2 (0.3%) African American , 13 (2.0%) Native American , 2 (0.3%) Asian , 0 (0.0%) Pacific Islander , 97 (15.0%) from other races , and 16 (2.5%) from two or more races. Hispanic or Latino of any race were 154 persons (23.8%). The Census reported that 636 people (98.5% of

72-421: A CDP have no legal status and may not always correspond with the local understanding of the area or community with the same name. However, criteria established for the 2010 census require that a CDP name "be one that is recognized and used in daily communication by the residents of the community" (not "a name developed solely for planning or other purposes") and recommend that a CDP's boundaries be mapped based on

96-461: A population of at least 10,000. For the 1970 Census , the population threshold for "unincorporated places" in urbanized areas was reduced to 5,000. For the 1980 Census , the designation was changed to "census designated places" and the designation was made available for places inside urbanized areas in New England. For the 1990 Census , the population threshold for CDPs in urbanized areas

120-652: Is a rich agricultural region, with excellent soils, planted mostly in irrigated pasture, wine grapes , and pears , but supporting a wide variety of farms and ranches. According to the United States Census Bureau , the Potter Valley Census Designated Place (CDP) covers an area of 4.0 square miles (10 km), 99.31% of it land, and 0.69% of it water. The entire valley, which is mostly rural, has an area of roughly 12 square miles (31 km). Potter Valley has

144-402: Is defined by the United States Census Bureau for statistical purposes as "a group of two people or more (one of whom is the householder ) related by birth, marriage, or adoption, and residing together; all such people (including related subfamily members) are considered as members of one family." A family household is more inclusive, consisting of "a household maintained by a householder who

168-654: The 1890 Census , in which the Census mixed unincorporated places with incorporated places in its products with "town" or "village" as its label. This made it confusing to determine which of the "towns" were or were not incorporated. The 1900 through 1930 Censuses did not report data for unincorporated places. For the 1940 Census , the Census Bureau compiled a separate report of unofficial, unincorporated communities of 500 or more people. The Census Bureau officially defined this category as "unincorporated places" in

192-461: The 1950 Census and used that term through the 1970 Census. For the 1950 Census, these types of places were identified only outside " urbanized areas ". In 1960 , the Census Bureau also identified unincorporated places inside urbanized areas (except in New England , whose political geography is based on the New England town , and is distinctly different from other areas of the U.S.), but with

216-526: The Mexico–United States border , and unincorporated resort and retirement communities and their environs. The boundaries of any CDP may change from decade to decade, and the Census Bureau may de-establish a CDP after a period of study, then re-establish it some decades later. Most unincorporated areas within the United States are not and have not been included in any CDP. The boundaries of

240-471: The state legislature , Potter Valley is in the 2nd Senate District , represented by Democrat Mike McGuire , and the 2nd Assembly District , represented by Democrat Jim Wood . Federally, Potter Valley is in California's 2nd congressional district , represented by Democrat Jared Huffman . Census-designated place CDPs have been used in each decennial census since 1980 as

264-457: The Census Bureau considers some towns in New England states, New Jersey and New York as well as townships in some other states as MCDs, even though they are incorporated municipalities in those states. In such states, CDPs may be defined within such towns or spanning the boundaries of multiple towns. There are a number of reasons for the CDP designation: Family (U.S. Census) A family

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288-605: The East Fork of the Russian River originate in the valley. The Potter Valley Project delivers additional water from the Eel River , which flows into the Russian River here via a controversial hydroelectric plant that tunnels through the mountains to take advantage of the relative proximity of these two waterways. This diversion supplies a significant amount of water to inland Mendocino and Sonoma counties. Potter Valley

312-484: The boundaries for CDPs. The PSAP was to be offered to county and municipal planning agencies during 2008. The boundaries of such places may be defined in cooperation with local or tribal officials, but are not fixed, and do not affect the status of local government or incorporation; the territories thus defined are strictly statistical entities. CDP boundaries may change from one census to the next to reflect changes in settlement patterns. Further, as statistical entities,

336-419: The boundaries of the CDP may not correspond with local understanding of the area with the same name. Recognized communities may be divided into two or more CDPs while on the other hand, two or more communities may be combined into one CDP. A CDP may also cover the unincorporated part of a named community, where the rest lies within an incorporated place. By defining an area as a CDP, that locality then appears in

360-518: The counterparts of incorporated places , such as self-governing cities , towns , and villages , for the purposes of gathering and correlating statistical data. CDPs are populated areas that generally include one officially designated but currently unincorporated community, for which the CDP is named, plus surrounding inhabited countryside of varying dimensions and, occasionally, other, smaller unincorporated communities as well. CDPs include small rural communities, edge cities , colonias located along

384-788: The geographic extent associated with inhabitants' regular use of the named place. There is no provision, however, that this name recognition be unanimous for all residents, or that all residents use the community for which the CDP is named for services provided therein. There is no mandatory correlation between CDP names or boundaries and those established for other human purposes, such as post office names or zones, political precincts, or school districts. The Census Bureau states that census-designated places are not considered incorporated places and that it includes only census-designated places in its city population list for Hawaii because that state has no incorporated cities. In addition, census city lists from 2007 included Arlington County, Virginia 's CDP in

408-643: The headwaters of the Russian River from their base in Sonoma County . The Pomo people called it Ba-lo Kai . They found three Pomo villages (each about 500 people strong), the Russian headwaters, and a lush valley with wild oats "stirrup high". Eventually the Potters returned to settle there, and the valley became known by the American ranchers' name. The post office opened in 1870. Painter Grace Hudson

432-556: The list with the incorporated places, but since 2010, only the Urban Honolulu CDP, Hawaii, representing the historic core of Honolulu, Hawaii , is shown in the city and town estimates. The Census Bureau reported data for some unincorporated places as early as the first census in 1790 (for example, Louisville, Kentucky , which was not legally incorporated in Kentucky until 1828), though usage continued to develop through

456-620: The population) lived in households, 10 (1.5%) lived in non-institutionalized group quarters, and 0 (0%) were institutionalized. There were 241 households, out of which 73 (30.3%) had children under the age of 18 living in them, 125 (51.9%) were opposite-sex married couples living together, 20 (8.3%) had a female householder with no husband present, 16 (6.6%) had a male householder with no wife present. There were 20 (8.3%) unmarried opposite-sex partnerships , and 0 (0%) same-sex married couples or partnerships . 61 households (25.3%) were made up of individuals, and 22 (9.1%) had someone living alone who

480-457: The same category of census data as incorporated places. This distinguishes CDPs from other census classifications, such as minor civil divisions (MCDs), which are in a separate category. The population and demographics of the CDP are included in the data of county subdivisions containing the CDP. Generally, a CDP shall not be defined within the boundaries of what the Census Bureau regards to be an incorporated city, village or borough. However,

504-502: Was 41.6 years. For every 100 females, there were 105.1 males. For every 100 females age 18 and over, there were 101.6 males. There were 267 housing units at an average density of 65.8 per square mile (25.4/km), of which 152 (63.1%) were owner-occupied, and 89 (36.9%) were occupied by renters. The homeowner vacancy rate was 0%; the rental vacancy rate was 10.0%. 382 people (59.1% of the population) lived in owner-occupied housing units and 254 people (39.3%) lived in rental housing units. In

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528-405: Was 65 years of age or older. The average household size was 2.64. There were 161 families (66.8% of all households); the average family size was 3.19. The population was spread out, with 142 people (22.0%) under the age of 18, 56 people (8.7%) aged 18 to 24, 156 people (24.1%) aged 25 to 44, 206 people (31.9%) aged 45 to 64, and 86 people (13.3%) who were 65 years of age or older. The median age

552-552: Was born in Potter Valley in 1865. In addition to his famous Ridgewood Ranch , Charles S. Howard , owner of the racehorse Seabiscuit , owned a ranch in Potter Valley where he ran cattle. Potter Valley is located 18 miles (29 km) northeast of Ukiah and 8 miles (13 km) northeast of Lake Mendocino in Mendocino County, with the valley floor at roughly 950 feet (290 m) in elevation. The headwaters of

576-481: Was reduced to 2,500. From 1950 through 1990, the Census Bureau specified other population requirements for unincorporated places or CDPs in Alaska , Puerto Rico , island areas, and Native American reservations . Minimum population criteria for CDPs were dropped with the 2000 Census . The Census Bureau's Participant Statistical Areas Program (PSAP) allows designated participants to review and suggest modifications to

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