There's something beautiful and fascinating in each of Arizona's 15 counties. Read on to learn more about all the wonderful parts of our state.
County Seat: Holbrook
Founded: 1895
Area: 9,950 square miles
Population: 107,449 (2010)
Other Major Cities: Heber, Kayenta, Pinetop-Lakeside, Show Low, Winslow
Geographic Highlights: About two-thirds of Navajo County is Navajo, Hopi and White Mountain Apache tribal land. Attractions include Monument Valley, the Painted Desert and a section of the Mogollon Rim, which cuts across much of Arizona from east to west.
County Seat: Tucson
Founded: 1864
Area: 9,187 square miles
Population: 980,263 (2010)
Other Major Cities: Ajo, Green Valley, Marana, Oro Valley, Sahuarita
Geographic Highlights: Pima County’s Santa Catalina Mountains, topped by 9,130-foot Mount Lemmon, overlook Tucson, and the two sections of Saguaro National Park bracket the city on the east and west. There’s also the Tohono O’odham Nation, Buenos Aires National Wildlife Refuge and Organ Pipe Cactus National Monument.
County Seat: Florence
Founded: 1875
Area: 5,366 square miles
Population: 375,770 (2010)
Other Major Cities: Apache Junction, Casa Grande, Coolidge, Maricopa, Oracle, Superior
Geographic Highlights: The Superstition Mountains rise in northern Pinal County east of Phoenix, and the county is also home to Boyce Thompson Arboretum, Casa Grande Ruins National Monument and Picacho Peak State Park. You can explore much of the county on the Pinal Pioneer Parkway (State Route 79).
County Seat: Nogales
Founded: 1899
Area: 1,237 square miles
Population: 47,420 (2010)
Other Major Cities: Patagonia, Sonoita, Tubac, Tumacacori
Geographic Highlights: The Nogales area — including the sister city of Nogales, Sonora, across the border — is the hub of Santa Cruz County, but other attractions include the Pajarita and Mount Wrightson wilderness areas, Tumacácori National Historical Park, the Patagonia Mountains and the ghost town of Ruby
County Seat: Prescott
Founded: 1864
Area: 8,124 square miles
Population: 211,033 (2010)
Other Major Cities: Camp Verde, Chino Valley, Cottonwood, Jerome, Sedona (partial)
Geographic Highlights: Throw a rock in Yavapai County and you’re bound to hit something spectacular: the red rocks of Sedona, the lakes of the Prescott area, Montezuma Castle
National Monument and Castle Hot Springs, to name a few. Of course, we don’t endorse rock-throwing as a general practice.
County Seat: Yuma
Founded: 1864
Area: 5,514 square miles
Population: 195,751 (2010)
Other Major City: San Luis
Geographic Highlights: Yuma County includes the Kofa National Wildlife Refuge and part of Cabeza Prieta National Wildlife Refuge. The city of Yuma rose to prominence as an early Colorado River crossing, and the Ocean-to-Ocean Bridge, the first vehicle bridge across the river, is located there.
County Seat: St. Johns
Founded: 1879
Area: 11,198 square miles
Population: 71,518 (2010)
Other Major Cities: Alpine, Chinle, Ganado, Springerville, Tsaile, Window Rock
Geographic Highlights: Apache County is home to the headwaters of the two forks of the Little Colorado River. It also includes White Mountains destinations such as Big Lake, Hawley Lake and Baldy Peak, along with the Navajo Nation’s Canyon de Chelly National Monument and most of Petrified Forest National Park.
County Seat: Bisbee
Founded: 1881
Area: 6,166 square miles
Population: 131,346 (2010)
Other Major Cities: Benson, Douglas, Sierra Vista, Willcox
Geographic Highlights: The Chiricahua Mountains are Cochise County’s best-known range, but others include the Dragoons and the Whetstones. Between Sierra Vista and Bisbee, the San Pedro Riparian National Conservation Area protects part of the San Pedro River, the last major undammed, free-flowing river in the American Southwest.
County Seat: Flagstaff
Founded: 1891
Area: 18,619 square miles
Population: 134,421 (2010)
Other Major Cities: Page, Sedona
(partial), Tusayan, Williams
Geographic Highlights: The Grand Canyon is a pretty big one, we suppose. But Coconino County also includes wonders such as Lake Powell, Marble Canyon, Sunset Crater, the Vermilion Cliffs and the San Francisco Peaks. The latter feature 12,633-foot Humphreys Peak, Arizona’s highest point.
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