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||110/sq mi (41/km2)|
|Time zone||UTC−7 (Mountain)|
|Congressional districts||1st, 2nd, 3rd|
Pima County ( // PEE-mə) 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 includes the Tucson, Arizona 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 (2017 city population: 535,677), 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 Marana (population 44,792), Oro Valley (population 44,350), Sahuarita (population 29,318), and South Tucson (population 5,643), 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.
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.
The Sonoran Desert Conservation Plan (SDCP) is Pima County's plan for desert conservation.
|U.S. Decennial Census |
As of the 2000 census, there were 843,746 people, 332,350 households, and 212,039 families living 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 census, there were 980,263 people, 388,660 households, and 243,167 families living 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.
The largest ancestry groups were:
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.
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.
Pima County is governed by a five-member Board of Supervisors who set ordinances and run services for the areas that do not fall within any city or town jurisdiction.
The Pima County Board of Supervisors is responsible for steering public policy in the region. The five-member board provides direction to the County Administrator and the county's various departments as they work to ensure safe communities, nurture economic development, sustainably manage natural resources and protect public health. In addition to overseeing the delivery of a host of municipal services, from roads to parks and libraries and law enforcement, board members also are responsible for approving the county budget. Elected to four-year terms, board members also set the amount of taxes to be levied.
|Party||District||Name||First elected||Area(s) represented||Official Website|
|Republican||District 1||Ally Miller||2012||Oro Valley, Marana, Catalina Foothills||District 1|
|Democratic||District 2||Ramon Valadez||Appointed 2003||Tucson, Sahuarita, South Tucson||District 2|
|Democratic||District 3||Sharon Bronson||1996||Tucson, Marana, Three Points, Sahuarita||District 3|
|Republican||District 4||Steve Christy||2016||Tucson, Vail, Summerhaven, Green Valley||District 4|
|Democratic||District 5||Betty Villegas||Appointed 2020||Tucson, Sahuarita, Green Valley||District 5|
Along with the Board of Supervisors the Arizona State Constitution allows for 7 other county elected officials.
|Democratic||County Attorney||Barbara LaWall||1996|
|Democratic||County Recorder||F. Ann Rodriguez||1992|
|Democratic||County School Superintendent||Dustin Williams||2016|
|Republican||Sheriff||Mark D. Napier||2016|
|Republican||Clerk of Superior Court||Toni Hellon||2013|
The Pima county sheriff's department provides court protection, administers the county jail, provides coroner service, and patrols the unincorporated parts of Pima County. It is the seventh largest sheriff's department in the nation.Incorporated towns within the county with municipal police departments are Tucson, Marana, Oro Valley, and Sahuarita.
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|
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Santa Cruz is a county in southern Arizona. As of the 2010 census, its population is 47,420. The county seat is Nogales. The county was established in 1899. It borders Pima County to the north and west, Cochise County to the east, and the Mexican state of Sonora to the south.
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Yuma County is a county in the southwestern corner of the U.S. state of Arizona. As of the 2010 census, its population was 195,751. The county seat is Yuma.
Pima is a town in Graham County, Arizona, United States. As of the 2010 census, the population of the town was 2,387, up from 1,989 at the 2000 census. The estimated population in 2018 was 2,512. Pima is part of the Safford Micropolitan Statistical Area.
Ajo is an unincorporated community in Pima County, Arizona, United States. It is the closest community to Organ Pipe Cactus National Monument. The population was 3,304 at the 2010 census. Ajo is located on State Route 85 just 43 miles (69 km) from the Mexican border.
Casas Adobes is a census-designated place (CDP) located in the northern metropolitan area of Tucson, Arizona. The population was 66,795 at the 2010 census. Casas Adobes is situated south and southwest of the town of Oro Valley, and west of the community of Catalina Foothills.
Corona de Tucson is a census-designated place (CDP) in Pima County, Arizona, United States. The population was 5,675 at the 2010 census, an increase of 598% from the 2000 population of 813.
East Sahuarita was a census-designated place (CDP) in Pima County, Arizona, United States. The population was 1,419 at the 2000 census. It is the unincorporated neighborhoods east of incorporated Sahuarita, Arizona.
Flowing Wells is a census-designated place (CDP) in Pima County, Arizona, United States. It is a suburb of Tucson. The population was 16,419 at the 2010 census.
Green Valley is a census-designated place (CDP) in Pima County, Arizona, United States. The population was 23,765 at the 2010 census.
Littletown was a census-designated place (CDP) in Pima County, Arizona, United States. The population was 1,010 at the 2000 census. The area was annexed into Tucson in 2017.
Sahuarita is a town in Pima County, Arizona, United States. Sahuarita is located south of the Tohono O'odham Nation and abuts the north end of Green Valley, 15 miles (24 km) south of Tucson. The population was 25,259 at the 2010 census.
Tanque Verde is a suburban census-designated place (CDP) in Pima County, Arizona, United States, northeast of Tucson. The population was 16,195 at the 2000 census.
Three Points is a census-designated place (CDP) in Pima County, Arizona, United States. The population was 5,581 at the 2010 census.
Tucson Estates is a census-designated place (CDP) in Pima County, Arizona, United States. The population was 9,755 at the 2000 census.
The Safford Micropolitan Statistical Area, as defined by the United States Census Bureau, is an area consisting of one county in eastern Arizona, anchored by the city of Safford.
Nelson is a census-designated place (CDP) in Pima County, Arizona, United States. The population was 259 at the 2010 census.