List of counties in Arizona
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The links in the column FIPS County Code are to the Census Bureau Info page for that county.
List of the 15 counties in the U.S. state of Arizona:
The FIPS county code is the five-digit Federal Information Processing Standard (FIPS) code which uniquely identifies counties and county equivalents in the United States. The three-digit number is unique to each individual county within a state, but to be unique within the entire United States, it must be prefixed by the state code. This means that, for example, Apache County, Arizona is 001, Belknap County, New Hampshire and Alachua County, Florida are also 001. Also, while Santa Cruz County, Arizona is number 023, there is also a Lincoln County, Wyoming, and a Botetourt County, Virginia that are each also 023. There is also a Santa Cruz County, California with the number 087. To uniquely identify Santa Cruz County, Arizona you would need to use the state code of 04 plus the county code of 023. Thus the unique identifier for the entire United States for Apache County, Arizona would be 04001, and Santa Cruz County would be 04023, etc.
[edit] Table
| County name | FIPS county code | County seat | Formed | History |
| Apache County | 001 | St. Johns | 1879 | from part of Yavapai County. |
| Cochise County | 003 | Bisbee | 1881 | from part of Pima County. |
| Coconino County | 005 | Flagstaff | 1891 | from part of Yavapai County. |
| Gila County | 007 | Globe | 1881 | from parts of Maricopa County and Pinal County. |
| Graham County | 009 | Safford | 1881 | from parts of Apache County and Pima County. |
| Greenlee County | 011 | Clifton | 1909 | from part of Graham County. |
| La Paz County | 012 | Parker | 1983 | from part of Yuma County. |
| Maricopa County | 013 | Phoenix | 1871 | from parts of Pima County and Yavapai County. |
| Mohave County | 015 | Kingman | 1864 | one of the original 4 counties. |
| Navajo County | 017 | Holbrook | 1895 | from part of Apache County. |
| Pima County | 019 | Tucson | 1864 | one of the original 4 counties. |
| Pinal County | 021 | Florence | 1875 | from parts of Maricopa and Pima Counties. |
| Santa Cruz County | 023 | Nogales | 1899 | from parts of Cochise and Pima Counties. |
| Yavapai County | 025 | Prescott | 1864 | one of the original 4 counties. |
| Yuma County | 027 | Yuma | 1864 | one of the original 4 counties. |
There is also one defunct county: Pah-Ute County formed in 1865 from Mohave County. It was returned to Mohave in 1871.
See also: Blank county map of Arizona
[edit] External links
| Lists of counties in the United States (parishes in Louisiana; boroughs and census areas in Alaska) |
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