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There are 15 counties in the U.S. state of Arizona. There is also one defunct county: Pah-Ute County was formed in 1865 from Mohave County and returned in 1871. Four counties (Mohave, Pima, Yavapai and Yuma) were created in 1864 following the organization of the Arizona Territory in 1862. All but La Paz County were created by the time Arizona was granted statehood in 1912.
The names of many of the counties pay tribute to the state's Native American heritage. Fully nine of the fifteen counties are named after various native groups that are resident in parts of what is now Arizona. Three of the other counties have Spanish names from the language of the early Hispanic explorers of Arizona: La Paz County, Santa Cruz County, and Pinal County. Another county, Graham County, is named for a physical feature, Mount Graham, with the final county, Greenlee County, being named after one of the state's early pioneers.
| County|| FIPS code|
| County seat|
| Formed from|
|Apache County||001||St. Johns||1879||Part of Yavapai County.||The Apache Native American people, who are resident in northeastern Arizona.||69,980|| 11,218 sq mi|
( 29,054 km2)
|Cochise County||003||Bisbee||1881||Part of Pima County.||Cochise, the Apache Native American leader.||127,866|| 6,219 sq mi|
( 16,107 km2)
|Coconino County||005||Flagstaff||1891||Part of Yavapai County.||Coconino Native American people, a Hopi designation for Havasupai and Yavapai people.||223,214|| 18,661 sq mi|
( 48,332 km2)
|Gila County||007||Globe||1881||Parts of Maricopa County and Pinal County.||Gila River, a river that flows through Arizona, whose name comes from a Pima Indian word.||51,994|| 4,796 sq mi|
( 12,422 km2)
|Graham County||009||Safford||1881||Parts of Apache County and Pima County.||Mount Graham, a mountain located in Arizona's Pinaleno Mountains.||34,769|| 4,641 sq mi|
( 12,020 km2)
|Greenlee County||011||Clifton||1909||Part of Graham County.||Mason Greenlee, a pioneer prospector in the area who died in 1903.||7,754|| 1,848 sq mi|
( 4,786 km2)
|La Paz County||012||Parker||1983||Part of Yuma County.||La Paz, Arizona, a historic boomtown on the Colorado River. La paz means the peace in Spanish.||20,172|| 4,513 sq mi|
( 11,689 km2)
|Maricopa County||013||Phoenix||1871||Parts of Pima County and Yavapai County.||Maricopa Native American people.||3,990,181|| 9,224 sq mi|
( 23,890 km2)
|Mohave County||015||Kingman||1864||One of the original 4 counties.||Mohave Indians, one of the Yuma tribes.||194,944|| 13,470 sq mi|
( 34,887 km2)
|Navajo County||017||Holbrook||1895||Part of Apache County.||Navajo Native American people.||111,273|| 9,959 sq mi|
( 25,794 km2)
|Pima County||019||Tucson||1864||One of the original 4 counties.||Pima Native American people, called in their own language Akimel O'odham (river people).||1,003,235|| 9,189 sq mi|
( 23,799 km2)
|Pinal County||021||Florence||1875||Parts of Maricopa and Pima counties.||Pinal Mountains (named from the Spanish for stand of pines) and the Pinal Indian people (a band of Coyotero Apaches) who lived there.||324,962|| 5,374 sq mi|
( 13,919 km2)
|Santa Cruz County||023||Nogales||1899||Parts of Cochise and Pima counties.||Santa Cruz River, a small river that flows through Arizona.||42,845|| 1,238 sq mi|
( 3,206 km2)
|Yavapai County||025||Prescott||1864||One of the original 4 counties.||Yavapai Native American people, who are from central Arizona||212,635|| 8,128 sq mi|
( 21,051 km2)
|Yuma County||027||Yuma||1864||One of the original 4 counties.||Yuma Indians, today called the Quechan.||190,557|| 5,519 sq mi|
( 14,294 km2)
- ^ a b Adams, Ward R. (1997). History of Arizona. Higginson Book Company. ISBN 0832870447.
- ^ a b Kane, Joseph and Aiken, Charles (2004). The American Counties: Origins of County Names, Dates of Creation, and Population Data, 1950-2000. Scarecrow Press. ISBN 0810850362. http://books.google.com/books?id=yC9vFvCuW84C&pg=PA333&dq=arizona+county+origins.
- ^ "EPA County FIPS Code Listing". EPA. http://www.epa.gov/enviro/html/codes/az.html. Retrieved 2007-04-09.
- ^ a b c d National Association of Counties. "NACo - Find a county". http://www.naco.org/Template.cfm?Section=Find_a_County&Template=/cffiles/counties/state.cfm&state.cfm&statecode=AZ. Retrieved 2008-04-30.
- ^ a b "Arizona QuickFacts". U.S. Census Bureau. http://www.census.gov/popest/counties/tables/CO-EST2007-01-04.xls. Retrieved 2007-07-17. (2000 Census)
- ^ "History of Greenlee County: Mason Greenlee". Greenlee County Government. Archived from the original on 2007-05-02. http://web.archive.org/web/20070502215800/http://www.co.greenlee.az.us/History/MasonGreenlee.aspx. Retrieved 2007-07-20.
|This page uses content from the English language Wikipedia. The original content was at List of counties in Arizona. The list of authors can be seen in the page history. As with this Familypedia wiki, the content of Wikipedia is available under the Creative Commons License.|