County Map of Arizona
Explore Arizona's 15 counties with detailed information about boundaries, county seats, demographics, and key landmarks.
Arizona Counties Directory
Arizona is divided into 15 counties, each with its own unique characteristics, geography, and history. Explore each county below to learn more about its features, demographics, and points of interest.
Apache County
Apache County is located in the northeast corner of Arizona. It encompasses much of the Navajo Nation and parts of the Apache National Forest.
Cochise County
Cochise County is located in the southeastern corner of Arizona. It's known for its historic mining towns and border with Mexico.
Coconino County
Coconino County is the largest county by area in Arizona and the second largest in the United States. It's home to the Grand Canyon and much of Northern Arizona.
Gila County
Gila County is located in the central part of Arizona. It's known for its rugged mountains, lakes, and mining history.
Graham County
Graham County is located in eastern Arizona. It includes part of the San Carlos Apache Indian Reservation and the Pinaleño Mountains.
Greenlee County
Greenlee County is Arizona's least populous county, located in the eastern part of the state on the New Mexico border. It's known for its copper mining.
La Paz County
La Paz County is located in western Arizona along the Colorado River. It's one of the newest counties in Arizona, formed in 1983.
Maricopa County
Maricopa County is Arizona's most populous county, containing the state capital of Phoenix and its metropolitan area. It's the fourth most populous county in the United States.
Mohave County
Mohave County is located in the northwestern part of Arizona. It includes portions of the Colorado River, Lake Mead, and Grand Canyon.
About Arizona Counties
Arizona is divided into 15 counties, each with its own governing body and jurisdiction. These counties vary greatly in size, population, geography, and economic focus. Arizona counties play a crucial role in providing local government services, maintaining public records, administering elections, and managing public infrastructure.
The largest county by area is Coconino County, which spans over 18,000 square miles and contains much of the Grand Canyon. The smallest county is Santa Cruz, at just 1,238 square miles. Maricopa County, home to Phoenix, is by far the most populous with over 4.4 million residents, while Greenlee County has the smallest population at less than 10,000 people.
When examining a county map of Arizona, you'll notice distinct regions: the heavily populated central corridor in Maricopa County, the vast wilderness of northern counties like Coconino and Mohave, the mining regions of eastern counties, and the agricultural areas along the Colorado River. This diversity reflects Arizona's varied landscape and history of development.
Planning a Trip Across Arizona?
Download our detailed county boundaries map for offline navigation. Perfect for road trips through multiple Arizona counties.
Download County MapWhat County Is Each Arizona City In?
Use this quick lookup table to find which of Arizona's 15 counties a city or town belongs to. Click any county for its full map and profile.
| City / Town | County |
|---|---|
| Phoenix (state capital) | Maricopa County — county seat |
| Tucson | Pima County — county seat |
| Mesa | Maricopa County |
| Chandler | Maricopa County |
| Scottsdale | Maricopa County |
| Glendale | Maricopa County |
| Gilbert | Maricopa County |
| Tempe | Maricopa County |
| Peoria | Maricopa County (partly Yavapai) |
| Surprise | Maricopa County |
| Goodyear, Buckeye & Avondale | Maricopa County |
| Flagstaff | Coconino County — county seat |
| Page & Williams | Coconino County |
| Sedona | Coconino & Yavapai counties |
| Prescott & Prescott Valley | Yavapai County — county seat |
| Cottonwood & Camp Verde | Yavapai County |
| Yuma | Yuma County — county seat |
| Lake Havasu City, Kingman & Bullhead City | Mohave County |
| Casa Grande, Florence, Eloy & Maricopa (city) | Pinal County |
| Apache Junction & Queen Creek | Pinal & Maricopa counties |
| Sierra Vista, Bisbee, Benson & Tombstone | Cochise County |
| Nogales & Rio Rico | Santa Cruz County |
| Safford & Thatcher | Graham County |
| Clifton & Duncan | Greenlee County |
| Globe, Payson & Miami | Gila County |
| Holbrook, Show Low, Winslow & Snowflake | Navajo County |
| St. Johns, Eagar & Springerville | Apache County |
| Parker & Quartzsite | La Paz County |
Arizona County Questions
How many counties does Arizona have?
Arizona has 15 counties: Apache, Cochise, Coconino, Gila, Graham, Greenlee, La Paz, Maricopa, Mohave, Navajo, Pima, Pinal, Santa Cruz, Yavapai, and Yuma. La Paz is the newest, created in 1983 from the northern part of Yuma County.
What county is Phoenix, AZ in?
Phoenix is in Maricopa County and serves as its county seat. Maricopa County is the most populous county in Arizona, with over 4.4 million residents, and also includes Mesa, Chandler, Scottsdale, Glendale, Gilbert, and Tempe.
What county is Scottsdale, AZ in?
Scottsdale is in Maricopa County, in the central part of the state, directly east of Phoenix.
What county is Flagstaff, AZ in?
Flagstaff is in Coconino County and is its county seat. Coconino County is the largest county in Arizona by area and contains much of the Grand Canyon.
Last reviewed on August 11, 2026.