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| Name | Pima |
| Alt names | Pima | source: Getty Vocabulary Program |
| Type | County |
| Coordinates | 32.0°N 112°W |
| Located in | Arizona, United States (1864 - ) |
| See also | Arizona, Arizona, United States | Parent county (source: Source:Population of States and Counties of the United States: 1790-1990) | | Cochise, Arizona, United States | Child county (source: Source:Population of States and Counties of the United States: 1790-1990) | | Graham, Arizona, United States | Child county (source: Source:Population of States and Counties of the United States: 1790-1990) | | Maricopa, Arizona, United States | Child county (source: Source:Population of States and Counties of the United States: 1790-1990) | | Pinal, Arizona, United States | Child county (source: Source:Population of States and Counties of the United States: 1790-1990) | | Santa Cruz, Arizona, United States | Child county (source: Source:Population of States and Counties of the United States: 1790-1990) |
- source: Getty Thesaurus of Geographic Names
- source: Family History Library Catalog
- the text in this section is copied from an article in Wikipedia
Pima County is a county in the south central region of the U.S. state of Arizona. The county is named after the Pima American Indian tribe which is indigenous to the area. The population was 980,263 at the 2010 census. The county seat is Tucson, where nearly all of the population is centered.
Pima County contains parts of the Tohono O'odham Nation, as well as all of the San Xavier Indian Reservation, Organ Pipe Cactus National Monument, Ironwood Forest National Monument and Saguaro National Park.
The vast majority of the county population lies in and around the city of Tucson (2011 city population: 525,796), filling much of the eastern part of the county with urban development. Tucson, Arizona's second largest city, is a major commercial and academic center. Other urban areas include the Tucson suburbs of Oro Valley (population 41,335), Marana (population 35,232), Sahuarita (population 25,458), and South Tucson (population 5,695), a large ring of unincorporated urban development, and the growing satellite town Green Valley. The rest of the county is sparsely populated; the largest towns are Sells, the capital of the Tohono O'odham Nation, and Ajo in the far western region of the county.
Timeline
| Date | Event | Source
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| 1864 | County formed | Source:Red Book: American State, County, and Town Sources
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| 1864 | Court records recorded | Source:Red Book: American State, County, and Town Sources
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| 1864 | Probate records recorded | Source:Red Book: American State, County, and Town Sources
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| 1866 | Land records recorded | Source:Red Book: American State, County, and Town Sources
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| 1870 | First census | Source:Population of States and Counties of the United States: 1790-1990
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| 1872 | Marriage records recorded | Source:Red Book: American State, County, and Town Sources
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| 1889 | Birth records recorded | Source:Red Book: American State, County, and Town Sources
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| 1900 | No significant boundary changes after this year | Source:Population of States and Counties of the United States: 1790-1990
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Population History
- source: Source:Population of States and Counties of the United States: 1790-1990
| Census Year | Population
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| 1870 | 5,716
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| 1880 | 17,006
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| 1890 | 12,673
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| 1900 | 14,689
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| 1910 | 22,818
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| 1920 | 34,680
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| 1930 | 55,676
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| 1940 | 72,838
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| 1950 | 141,216
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| 1960 | 265,660
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| 1970 | 351,667
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| 1980 | 531,443
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| 1990 | 666,880
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