Arizona Counties

Arizona Counties

by Vishul Malik



Following the organization of the Arizona Territory in 1862, the first 4 counties were created in 1864. Over half of Arizona Counties are named after multifarious Native American groups of Arizona. While 4 counties are named after physical features of Arizona’s landscape, the others are named after former settlements, early pioneers of the state, and native leaders.

How Many Counties in Arizona

The US state of Arizona (the 6th largest state out of the 50 states) has 15 counties. These counties are again subdivided into 91 cities/towns/villages and 310 special districts. Check this Arizona County Map which provides the location of all 15 counties on the Arizona Map.




Counties of Arizona

What are the 5 Biggest Counties in Arizona by Size?

The biggest counties in Arizona in terms of size are:


  • Coconino County: 18,661 sq mi (48,332 sq km)
  • Mohave County: 13,470 sq mi (34,887 sq km)
  • Apache County: 11,218 sq mi (29,054 sq km)
  • Navajo County: 9,959 sq mi (25,794 sq km)
  • Maricopa County: 9,224 sq mi (23,890 sq km)

What are the 5 Biggest Counties in Arizona by Population?

The biggest counties in Arizona in terms of population (2020) are Maricopa County, Pima County, Pinal County, Yavapai County, and Mohave County.

Which is the Smallest County in Arizona?

The smallest county in Arizona (in terms of population) is Greenlee County. In terms of size, Santa Cruz County is the smallest county. 

What are the Oldest and Newest Counties in Arizona?

Mohave, Pima, Yavapai, and Yuma are the oldest counties in Arizona, created in 1864. La Paz County is the newest county, created in 1983.


Which is the Richest County in Arizona?

Maricopa County is the wealthiest county in Arizona, having a median annual household income of US$64,468. 

Which is the Poorest County in Arizona?

Apache County is the poorest region in Arizona. The poverty rate here is around 36.6%. The median household income of Apache County is US$31,757. 

What are the top 5 Best Counties to Live in Arizona?

Maricopa, Pima, Greenlee, Coconino, and Cochise are the best counties to live in Arizona.


Yavapai County Map, Arizona

Yavapai County Map, Arizona shows a visual representation of the county’s location. It is located in the central part of the state. Yavapai County, Arizona is known for its diverse landscapes, including the Prescott National Forest and historical sites like Prescott’s Whiskey Row. The map also shows the county seat Prescott.

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Yuma County Map, Arizona

Facts about Yuma County County Yuma State Arizona Country USA Population – 2015 204,275   List of Counties in Arizona County Name County Seat/Capital State 2010 pop. Area-km Area-mi Apache…

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Santa Cruz County Map, Arizona

Santa Cruz County Map, Arizona shows a visual representation of the county’s location. It is located in the southern part of the state. Santa Cruz County, Arizona is known for its bustling international trade and border crossing with Nogales, Sonora, Mexico. The map also shows the county seat Nogales.

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Pima County Map, Arizona

Facts about Pima County County Pima State Arizona Country USA Population – 2015 1,010,025   List of Counties in Arizona County Name County Seat/Capital State 2010 pop. Area-km Area-mi Apache…

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Pinal County Map, Arizona

Facts about Pinal County County Pinal State Arizona Country USA Population – 2015 406,584   List of Counties in Arizona County Name County Seat/Capital State 2010 pop. Area-km Area-mi Apache…

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Mohave County Map, Arizona

Mohave County Map, Arizona shows a visual representation of the county’s location. It is located in the northwestern part of the state. Mohave County, Arizona is known for its stunning desert landscapes, outdoor recreational opportunities, and proximity to the Colorado River. The map also shows the county seat Kingman.

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Navajo County Map, Arizona

Navajo County Map, Arizona shows a visual representation of the county’s location. It is located in the northeastern part of the state. Navajo County, Arizona is known for its diverse landscapes, including parts of the Navajo Nation and the Petrified Forest National Park. The map also shows the county seat Holbrook.

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La Paz County Map, Arizona

La Paz County Map, Arizona shows a visual representation of the county’s location. It is located in the western part of the state. La Paz County, Arizona is known for its stunning desert landscapes, outdoor recreational activities along the Colorado River, and its popularity among boaters, fishermen, and off-road enthusiasts. The map also shows the county seat Parker.

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Maricopa County Map, Arizona

Facts about Maricopa County County Maricopa State Arizona Country USA Population – 2015 4,167,947   List of Counties in Arizona County Name County Seat/Capital State 2010 pop. Area-km Area-mi Apache…

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Gila County Map, Arizona

Gila County Map, Arizona shows a visual representation of the county’s location. It is located in the central part of the state. Gila County, Arizona is known for its rich mining history, stunning natural landscapes, and outdoor recreational opportunities. The map also shows the county seat Globe.

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