Quick facts for kids
Location within the U.S. state of Arizona
Arizona's location within the U.S.
|Founded||November 9, 1864|
|Named for||Pima people|
|• Total||9,189 sq mi (23,800 km2)|
|• Land||9,187 sq mi (23,790 km2)|
|• Water||2.1 sq mi (5 km2) 0.02%%|
| • Estimate
|• Density||109/sq mi (42/km2)|
|Time zone||UTC−7 (Mountain)|
|Congressional districts||1st, 2nd, 3rd|
Pima County // is a county in the south central region of the U.S. state of Arizona. As of the 2010 census, the population was 980,263, making it Arizona's second-most populous county. The county seat is Tucson, where nearly all of the population is centered. The county is named after the Pima Native Americans who are indigenous to this area.
Pima County comprises the Tucson, AZ Metropolitan Statistical Area.
Pima County contains parts of the Tohono O'odham Nation, as well as all of the San Xavier Indian Reservation, the Pascua Yaqui Indian Reservation, Organ Pipe Cactus National Monument, Ironwood Forest National Monument and Saguaro National Park.
The vast majority of the county population lies in and around the city of Tucson (2011 city population: 525,796), filling much of the eastern part of the county with urban development. Tucson, Arizona's second largest city, is a major commercial and academic center. Other urban areas include the Tucson suburbs of Oro Valley (population 41,335), Marana (population 35,232), Sahuarita (population 25,458), and South Tucson (population 5,695), a large ring of unincorporated urban development, and the growing satellite town Green Valley. The rest of the county is sparsely populated; the largest towns are Sells, the capital of the Tohono O'odham Nation, and Ajo in the county's far western region.
- Metropolitan Statistical Area
- Tourist attractions
Pima County, one of the four original counties in Arizona, was created by the 1st Arizona Territorial Legislature with land acquired through the Gadsden Purchase from Mexico in 1853. The original county consisted of all of Arizona Territory east of longitude 113° 20' and south of the Gila River. Soon thereafter, the counties of Cochise, Graham and Santa Cruz were carved from the original Pima County.
According to the U.S. Census Bureau, the county has a total area of 9,189 square miles (23,800 km2), of which 9,187 square miles (23,790 km2) is land and 2.1 square miles (5.4 km2) (0.02%) is water.
- Mountains of Pima County
- Fresnal Canyon
- Interstate 10
- Interstate 19
- State Route 77
- State Route 83
- State Route 85
- State Route 86
- State Route 210
Adjacent counties and municipalities
National protected areas
- Buenos Aires National Wildlife Refuge
- Cabeza Prieta National Wildlife Refuge (part)
- Coronado National Forest (part)
- Ironwood Forest National Monument (part)
- Las Cienegas National Conservation Area (part)
- Organ Pipe Cactus National Monument
- Saguaro National Park
Sonoran Desert Conservation Plan
The award-winning Sonoran Desert Conservation Plan (SDCP) is Pima County’s plan for balancing the conservation and protection of our cultural and natural resource heritage with our efforts to maintain an economically vigorous and fiscally responsible community. Broadly defined, the SDCP considered the following elements: critical habitats and biological corridors, riparian areas, mountain parks, historical and cultural preservation, and ranch conservation. All five elements, along with fiscal analysis, were critical in forming a viable land management plan for Pima County.
|U.S. Decennial Census
As of the 2000 census, there were 843,746 people, 332,350 households, and 212,039 families residing in the county. The population density was 92 people per square mile (35/km²). There were 366,737 housing units at an average density of 40 per square mile (15/km²). The racial makeup of the county was 75.07% White, 3.03% Black or African American, 3.22% Native American, 2.04% Asian, 0.13% Pacific Islander, 13.30% from other races, and 3.21% from two or more races. 29.34% of the population were Hispanic or Latino of any race. 22.80% reported speaking Spanish at home.
There were 332,350 households out of which 29.20% had children under the age of 18 living with them, 47.70% were married couples living together, 11.80% had a female householder with no husband present, and 36.20% were non-families. 28.50% of all households were made up of individuals and 9.40% had someone living alone who was 65 years of age or older. The average household size was 2.47 and the average family size was 3.06.
In the county, the population was spread out with 24.60% under the age of 18, 10.90% from 18 to 24, 28.40% from 25 to 44, 21.90% from 45 to 64, and 14.20% who were 65 years of age or older. The median age was 36 years. For every 100 females there were 95.70 males. For every 100 females age 18 and over, there were 92.70 males.
The median income for a household in the county was $36,758, and the median income for a family was $44,446. Males had a median income of $32,156 versus $24,959 for females. The per capita income for the county was $19,785. About 10.50% of families and 14.70% of the population were below the poverty line, including 19.40% of those under age 18 and 8.20% of those age 65 or over.
As of the 2010 United States Census, there were 980,263 people, 388,660 households, and 243,167 families residing in the county. The population density was 106.7 inhabitants per square mile (41.2/km2). There were 440,909 housing units at an average density of 48.0 per square mile (18.5/km2). The racial makeup of the county was 74.3% white, 3.5% black or African American, 3.3% American Indian, 2.6% Asian, 0.2% Pacific islander, 12.3% from other races, and 3.7% from two or more races. Those of Hispanic or Latino origin made up 34.6% of the population. In terms of ancestry, 16.2% were German, 10.6% were Irish, 9.9% were English, and 2.8% were American.
Of the 388,660 households, 29.8% had children under the age of 18 living with them, 44.5% were married couples living together, 12.8% had a female householder with no husband present, 37.4% were non-families, and 29.2% of all households were made up of individuals. The average household size was 2.46 and the average family size was 3.06. The median age was 37.7 years.
The median income for a household in the county was $45,521 and the median income for a family was $57,377. Males had a median income of $42,313 versus $33,487 for females. The per capita income for the county was $25,093. About 11.2% of families and 16.4% of the population were below the poverty line, including 22.6% of those under age 18 and 8.5% of those age 65 or over.
Metropolitan Statistical Area
The United States Office of Management and Budget has designated Pima County as the Tucson, AZ Metropolitan Statistical Area. The United States Census Bureau ranked the Tucson, AZ Metropolitan Statistical Area as the 53rd most populous metropolitan statistical area of the United States as of July 1, 2012.
The Office of Management and Budget has further designated the Tucson, AZ Metropolitan Statistical Area as a component of the more extensive Tucson-Nogales, AZ Combined Statistical Area, the 53rd most populous combined statistical area and the 59th most populous primary statistical area of the United States as of July 1, 2012.
- Ak Chin
- Ali Chuk
- Ali Chukson
- Ali Molina
- Arivaca Junction
- Avra Valley
- Casas Adobes
- Catalina Foothills
- Chiawuli Tak
- Corona de Tucson
- Drexel Heights
- Elephant Head
- Flowing Wells
- Green Valley
- Gu Oidak
- Haivana Nakya
- Ko Vaya
- Maish Vaya
- Picture Rocks
- Pimaco Two
- Rincon Valley
- San Miguel
- Santa Rosa
- South Komelik
- Tanque Verde
- Three Points
- Tucson Estates
- Valencia West
- Wahak Hotrontk
- Willow Canyon
- Pascua Yaqui
- San Xavier
- Tohono O'odham (part)
County population ranking
The population ranking of the following table is based on the 2010 census of Pima County.
† county seat
|Rank||City/Town/etc.||Population (2010 Census)||Municipal type||Incorporated|
|17||Corona de Tucson||5,675||CDP|
- Pima County Fair
Locations of Interest
- Arizona-Sonora Desert Museum
- Old Tucson Studios
- Arizona Historical Society (museum)
- Tucson Gem & Mineral Show
- Titan Missile Museum
- Pima Air and Space Museum
- Mission San Xavier del Bac
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Pima County, Arizona Facts for Kids. Kiddle Encyclopedia.