Arizona Counties
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Arizona Counties

There are fifteen Counties in Arizona. There is one defunct county: Pah-Ute County 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. The newest, La Paz County was created in 1983.
 

Arizona Counties: History and Information

Find a brief history of Arizona CountiesBrief history of Arizona Counties: Flags of Our Nation

Arizona is located in the southwestern region of the country and is the sixth most extensive and the 16th most populous of the 50 states. Arizona achieved statehood on February 14, 1912. Arizona is noted for its desert climate in its southern half, while the northern half has much more moderate weather with significant snowfalls. Arizona has borders with New Mexico, Utah, Nevada, California, and Mexico, and it has one point in common with the southwestern corner of Colorado. Arizona has a 389 miles long international border with the Mexican states of Sonora and Baja California. Arizona capital and largest city is Phoenix.

There are 15 counties in the 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 Arizons: La Paz County, Santa Cruz County, and Pinal County. Another county, Graham County, is named for a physical features, Mount Graham, with the final county, Greenlee County, being named after one of the state's early pioneers.

History of Arizona Counties
County 2000
Population
Square
Miles
County Seat Created
Apache County 69,423 11,206 Saint Johns 1879
Cochise County 117,755 6,170 Bisbee 1881
Coconino County 116,320 18,619 Flagstaff 1891
Gila County 51,335 4,768 Globe 1881
Graham County 33,489 4,630 Safford 1881
Greenlee County 8,547 1,847 Clifton 1909
La Paz County 19,715 4,500 Parker 1983
Maricopa County 3,072,149 9,204 Phoenix 1871
Mohave County 155,032 13,312 Kingman 1864
Navajo County 97,470 9,954 Holbrook 1895
Pima County 843,746 9,187 Tucson 1870
Pinal County 179,727 5,370 Florence 1875
Santa Cruz County 38,381 1,238 Nogales 1899
Yavapai County 167,517 8,124 Prescott 1864
Yuma County 160,026 5,514 Yuma 1864


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