Pima County, Arizona

{{short description|County in Arizona, United States}} {{Use American English|date=June 2025}} {{Unreliable sources|date=December 2022}} {{Use mdy dates|date=April 2024}} {{Infobox U.S. county | county = Pima County | state = Arizona | ex image = Pima County Courthouse 10.JPG | ex image size = 300px | ex image cap = Pima County Courthouse | seal = Seal of Pima County, Arizona.png | founded year = 1864 | founded date = November 9 | seat wl = Tucson | largest city = Tucson | area_total_sq_mi = 9189 | area_land_sq_mi = 9187 | area_water_sq_mi = 2.1 | area percentage = 0.02% | population_as_of = 2020 | population_total = 1043433 | pop_est_as_of = 2025 | population_est = 1074685 {{increase}} | population_density_sq_mi = auto | time zone = Mountain | web = www.pima.gov | footnote = | district = 6th | district2 = 7th | named for = Pima people | coordinates = {{Coord|32|03|55|N|111|49|15|W|region:US-AL_type:adm2nd_source:dewiki|display=title,inline}} |logo=Pima County, AZ logo.svg}} thumb|Pima County Fair, 2007

'''Pima County''' ({{IPAc-en|ˈ|p|iː|m|ə}} {{respell|PEE|mə}}) is a county in the south central region of the U.S. state of Arizona, one of 15 counties in the state. As of the 2020 census, the population was 1,043,433,<ref name="QF">{{cite web|title=State & County QuickFacts |url=https://www.census.gov/quickfacts/fact/table/pimacountyarizona/PST045221 |publisher=United States Census Bureau |access-date=September 27, 2022}}</ref> making it Arizona's second-most populous county. The county seat is Tucson,<ref name="GR6">{{cite web|url=http://www.naco.org/Counties/Pages/FindACounty.aspx|access-date=June 7, 2011|title=Find a County|publisher=National Association of Counties}}</ref> where most of the population is centered. The county is named after the Pima Native Americans, also known as Akimel O'odham, who are indigenous to this area.

Pima County includes the entirety of the Tucson Metropolitan Statistical Area, and it is the third largest metropolitan area in the Southwestern United States.

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, filling much of the eastern part of the county with urban development. As Arizona's second-largest city, Tucson is a major commercial and academic center. Other urban areas include the Tucson suburbs of Marana, Oro Valley, Sahuarita, South Tucson, and 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.

==History== 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.<ref>{{cite book | last = Wagoner | first = Jay J. | title = Arizona Territory 1863–1912: A Political history | publisher = University of Arizona Press | location = Tucson | year = 1970 | isbn = 0-8165-0176-9 | page = [https://archive.org/details/arizonaterritory00wago/page/58 58] | url-access = registration | url = https://archive.org/details/arizonaterritory00wago/page/58 }}</ref> Soon thereafter, the counties of Cochise, Graham and Santa Cruz were carved from the original Pima County.<ref name="pimajp">{{cite web |url=http://jp.pima.gov/Pages/history/county.htm |title=History: Pima County |publisher=Pima County Justice Court |date=September 27, 2000 |access-date=September 30, 2009 |url-status=dead |archive-url=https://web.archive.org/web/20100527140505/http://jp.pima.gov/Pages/history/county.htm |archive-date=May 27, 2010}}</ref>

==Geography== According to the United States Census Bureau, the county has a total area of {{convert|9189|sqmi}}, of which {{convert|9187|sqmi}} is land and {{convert|2.1|sqmi}} (0.02%) is water.<ref name="GR1">{{cite web|url=http://www2.census.gov/geo/docs/maps-data/data/gazetteer/counties_list_04.txt|publisher=United States Census Bureau|access-date=August 23, 2015|date=August 23, 2012|title=2010 Census Gazetteer Files}}</ref>

===Topographic features=== * Mountains of Pima County * Fresnal Canyon

===Major highways=== * 20px Interstate 10 * 20px Interstate 19 * 20px Historic U.S. Route 80 * 20px State Route 77 * 20px State Route 83 * 20px State Route 85 * 20px State Route 86 * 25px State Route 210 * 25px State Route 989

===Adjacent counties and municipalities=== {{div col}} * Yuma County – west * Maricopa County – north * Pinal County – north * Graham County – northeast * Cochise County – east * Santa Cruz County – southeast east and south * Altar, Sonora, Mexico – south * Caborca, Sonora, Mexico – south * General Plutarco Elías Calles, Sonora, Mexico – south * Sáric, Sonora, Mexico – south {{div col end}}

===National protected areas=== * Buenos Aires National Wildlife Refuge * Cabeza Prieta National Wildlife Refuge (part) * Coronado National Forest (part) * Ironwood Forest National Monument (part) * alt=Official Pima County Logo|thumb|Old Pima County Courthouse Las Cienegas National Conservation Area (part) * Organ Pipe Cactus National Monument * Saguaro National Park

===Sonoran Desert Conservation Plan=== The Sonoran Desert Conservation Plan (SDCP) is Pima County's plan for desert conservation. The SDCP addresses natural and cultural resources, ranches, endangered species compliance and wildlife corridors.<ref>{{Cite web |last=Pima County |date=2023 |title=The Sonoran Desert Conservation Plan |url=https://www.pima.gov/787/The-Sonoran-Desert-Conservation-Plan |access-date=July 27, 2023}}</ref>

==Demographics== {{US Census population |1870= 5716 |1880= 17006 |1890= 12673 |1900= 14689 |1910= 22818 |1920= 34680 |1930= 55676 |1940= 72838 |1950= 141216 |1960= 265660 |1970= 351667 |1980= 531443 |1990= 666880 |2000= 843746 |2010= 980263 |2020= 1043433 |estyear=2025 |estimate=1074685 |estref=<ref name="USCensusEst2025">{{cite web|url=https://www.census.gov/data/tables/time-series/demo/popest/2020s-counties-total.html|title=County Population Totals and Components of Change: 2020-2025|publisher=United States Census Bureau|access-date=April 9, 2026}}</ref> {{increase}} |align-fn=center |footnote=U.S. Decennial Census<ref>{{cite web|url=https://www.census.gov/programs-surveys/decennial-census.html|title=U.S. Decennial Census|publisher=United States Census Bureau|access-date=May 18, 2014}}</ref> 1790–1960<ref>{{cite web|url=http://mapserver.lib.virginia.edu/|title=Historical Census Browser|publisher=University of Virginia Library|access-date=May 18, 2014|archive-date=December 12, 2009|archive-url=https://web.archive.org/web/20091212224028/http://mapserver.lib.virginia.edu/|url-status=dead}}</ref> 1900–1990<ref>{{cite web|url=https://www.census.gov/population/cencounts/az190090.txt|title=Population of Counties by Decennial Census: 1900 to 1990|publisher=United States Census Bureau|access-date=May 18, 2014}}</ref> 1990–2000<ref>{{cite web|url=https://www.census.gov/population/www/cen2000/briefs/phc-t4/tables/tab02.pdf |archive-url=https://ghostarchive.org/archive/20221009/https://www.census.gov/population/www/cen2000/briefs/phc-t4/tables/tab02.pdf |archive-date=October 9, 2022 |url-status=live|title=Census 2000 PHC-T-4. Ranking Tables for Counties: 1990 and 2000|publisher=United States Census Bureau|access-date=May 18, 2014}}</ref> 2010–2020<ref name="QF"/> | align = right }}

===Racial and ethnic composition=== {| class="wikitable" style="text-align:center;" |+'''Pima County, Arizona – Racial and ethnic composition''' {{nobold|''Note: the US Census treats Hispanic/Latino as an ethnic category. This table excludes Latinos from the racial categories and assigns them to a separate category. Hispanics/Latinos may be of any race.''}} !Race / Ethnicity (''NH = Non-Hispanic'') !{{partial|2020}}<ref name=2020CensusP2>{{Cite web|title=P2: Hispanic or Latino, and Not Hispanic or Latino by Race – 2020: DEC Redistricting Data (PL 94-171) – Pima County, Arizona |url=https://data.census.gov/cedsci/table?q=p2&g=050XX00US04019&tid=DECENNIALPL2020.P2|website=United States Census Bureau |access-date= }}</ref> !2010<ref name=2010CensusP2>{{Cite web|title=P2: Hispanic or Latino, and Not Hispanic or Latino by Race – 2010: DEC Redistricting Data (PL 94-171) – Pima County, Arizona |url=https://data.census.gov/cedsci/table?q=p2&g=050XX00US04019&tid=DECENNIALPL2010.P2|website=United States Census Bureau |access-date= }}</ref> !2000<ref name=2000CensusP004>{{Cite web|title=P004: Hispanic or Latino, and Not Hispanic or Latino by Race – 2000: DEC Summary File 1 – Pima County, Arizona |url=https://data.census.gov/table?g=050XX00US04019&tid=DECENNIALSF12000.P004|website=United States Census Bureau |access-date= }}</ref> !1990<ref>{{cite book |title=Arizona: 1990 |pages=10 |url=https://www2.census.gov/library/publications/decennial/1990/cp-1/cp-1-4.pdf}}</ref> !1980<ref>{{cite book |title=General Social and Economic Characteristics: Arizona |pages=24 |url=https://www2.census.gov/prod2/decennial/documents/1980a_azABC-04.pdf}}</ref> |- |White alone (NH) |style='background: #ffffe6; |51.5% (536,868) |55.3% (541,700) |61.5% (518,720) |68.2% (454,919) |72.9% (387,592) |- |Black alone (NH) |style='background: #ffffe6; |3.5% (36,254) |3.2% (31,075) |2.9% (24,047) |2.9% (19,455) |2.6% (14,072) |- |American Indian alone (NH) |style='background: #ffffe6; |2.3% (23,670) |2.4% (23,558) |2.6% (21,821) |2.5% (17,005) |2.4% (12,642) |- |Asian alone (NH) |style='background: #ffffe6; |2.9% (29,844) |2.5% (24,592) |2% (16,595) |<td rowspan="2"> |1.7% (11,228) |<td rowspan="2"> |0.9% (4,896) |- |Pacific Islander alone (NH) |style='background: #ffffe6; |0.2% (1,937) |0.1% (1,336) |0.1% (891) |- |Other race alone (NH) |style='background: #ffffe6; |0.5% (4,657) |0.2% (1,461) |0.1% (1,012) |0.2% (1,011) |0.2% (863) |- |Multiracial (NH) |style='background: #ffffe6; |3.6% (37,415) |1.8% (17,739) |1.6% (13,082) |— |— |- |Hispanic/Latino (any race) |style='background: #ffffe6; |35.7% (372,788) |34.6% (338,802) |29.3% (247,578) |24.5% (163,262) |21% (111,378) |}

===2020 census=== As of the 2020 census, the county had a population of 1,043,433. Of the residents, 20.0% were under the age of 18 and 21.9% were 65 years of age or older; the median age was 41.2 years. For every 100 females there were 96.6 males, and for every 100 females age 18 and over there were 94.8 males. 91.2% of residents lived in urban areas and 8.8% lived in rural areas.<ref name="Census2020DHC">{{cite web|title=2020 Decennial Census Demographic and Housing Characteristics (DHC)|url=https://api.census.gov/data/2020/dec/dhc?get=NAME%2CP2_002N%2CP2_003N&for=county%3A019&in=state%3A04|website=United States Census Bureau|year=2023|access-date=10 December 2025|df=mdy}}</ref><ref name="Census2020DP">{{cite web|title=2020 Decennial Census Demographic Profile (DP1)|url=https://api.census.gov/data/2020/dec/dp?get=NAME%2CDP1_0021P%2CDP1_0024P%2CDP1_0025C%2CDP1_0049C%2CDP1_0045C%2CDP1_0069C%2CDP1_0073C%2CDP1_0125P%2CDP1_0126P%2CDP1_0129P%2CDP1_0138P%2CDP1_0139P%2CDP1_0141P%2CDP1_0142P%2CDP1_0143P%2CDP1_0145P%2CDP1_0146P%2CDP1_0147C%2CDP1_0148C%2CDP1_0149C%2CDP1_0156C%2CDP1_0157C%2CDP1_0158C%2CDP1_0159P%2CDP1_0160P&for=county%3A019&in=state%3A04|website=United States Census Bureau|year=2021|access-date=10 December 2025|df=mdy}}</ref>

The racial makeup of the county was 60.7% White, 3.8% Black or African American, 3.3% American Indian and Alaska Native, 3.0% Asian, 0.2% Native Hawaiian and Pacific Islander, 12.2% from some other race, and 16.7% from two or more races. Hispanic or Latino residents of any race comprised 35.7% of the population.<ref name="Census2020PL">{{cite web|title=2020 Decennial Census Redistricting Data (Public Law 94-171)|url=https://api.census.gov/data/2020/dec/pl?get=NAME%2CP1_001N%2CP1_003N%2CP1_004N%2CP1_005N%2CP1_006N%2CP1_007N%2CP1_008N%2CP1_009N%2CP2_001N%2CP2_002N%2CH1_001N%2CH1_002N&for=county%3A019&in=state%3A04|website=United States Census Bureau|year=2021|access-date=10 December 2025|df=mdy}}</ref>

There were 427,021 households in the county, of which 25.5% had children under the age of 18 living with them and 28.6% had a female householder with no spouse or partner present. About 31.1% of all households were made up of individuals and 13.6% had someone living alone who was 65 years of age or older.<ref name="Census2020DP"/>

There were 470,132 housing units, of which 9.2% were vacant. Among occupied housing units, 63.6% were owner-occupied and 36.4% were renter-occupied. The homeowner vacancy rate was 1.7% and the rental vacancy rate was 7.7%.<ref name="Census2020DP"/>

===2010 census=== As of the census of 2010, there were 980,263 people, 388,660 households, and 243,167 families living in the county.<ref name="census-dp1">{{cite web |url=http://factfinder.census.gov/bkmk/table/1.0/en/DEC/10_DP/DPDP1/0500000US04019 |title=DP-1 Profile of General Population and Housing Characteristics: 2010 Demographic Profile Data |access-date=January 20, 2016 |publisher=United States Census Bureau |archive-url=https://archive.today/20200213030136/http://factfinder.census.gov/bkmk/table/1.0/en/DEC/10_DP/DPDP1/0500000US04019 |archive-date=February 13, 2020 |url-status=dead }}</ref> The population density was {{convert|106.7|/mi2|/km2|disp=preunit|inhabitants |inhabitants|}}. There were 440,909 housing units at an average density of {{convert|48.0|/mi2|/km2|disp=preunit|units |units|}}.<ref name="census-density">{{cite web |url=http://factfinder.census.gov/bkmk/table/1.0/en/DEC/10_SF1/GCTPH1.CY07/0500000US04019 |access-date=January 20, 2016 |title=Population, Housing Units, Area, and Density: 2010 – County |publisher=United States Census Bureau }}{{Dead link|date=September 2022 |bot=InternetArchiveBot |fix-attempted=yes }}{{Dead link|date=September 2022 |bot=InternetArchiveBot |fix-attempted=yes }}{{Dead link|date=July 2021 |bot=InternetArchiveBot |fix-attempted=yes }}</ref> 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.<ref name="census-dp1"/>

The largest ancestry groups were:<ref name="census-dp2">{{cite web |url=http://factfinder.census.gov/bkmk/table/1.0/en/ACS/10_5YR/DP02/0500000US04019 |title=DP02 Selected Social Characteristics in the United States – 2006–2010 American Community Survey 5-Year Estimates |access-date=January 20, 2016 |publisher=United States Census Bureau }}{{Dead link|date=September 2022 |bot=InternetArchiveBot |fix-attempted=yes }}{{Dead link|date=September 2022 |bot=InternetArchiveBot |fix-attempted=yes }}{{Dead link|date=July 2021 |bot=InternetArchiveBot |fix-attempted=yes }}</ref> {{Div col|colwidth=15em}} * 30.8% Mexican * 16.2% German * 10.6% Irish * 9.9% English * 4.5% Italian * 3.1% French * 2.8% American * 2.7% Polish * 2.4% Scottish * 1.8% Scotch-Irish * 1.7% Norwegian * 1.6% Dutch * 1.6% Swedish * 1.1% Russian {{div col end}}

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.<ref name="census-dp1"/>

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.<ref name="census-dp3">{{cite web|url=http://factfinder.census.gov/bkmk/table/1.0/en/ACS/10_5YR/DP03/0500000US04019|title=DP03 Selected Economic Characteristics – 2006–2010 American Community Survey 5-Year Estimates|access-date=January 20, 2016|publisher=United States Census Bureau|archive-url=https://archive.today/20200213030014/http://factfinder.census.gov/bkmk/table/1.0/en/ACS/10_5YR/DP03/0500000US04019|archive-date=February 13, 2020|url-status=dead}}</ref>

===2000 census=== As of the census of 2000, there were 843,746 people, 332,350 households, and 212,039 families living in the county. The population density was {{convert|92|/mi2|/km2|disp=preunit|people |people}}. There were 366,737 housing units at an average density of {{convert|40|/mi2|/km2|disp=preunit|units |units|}}. The racial makeup of the county was 75.1% White, 3.0% Black or African American, 3.2% Native American, 2.0% Asian, 0.1% Pacific Islander, 13.3% from other races, and 3.2% from two or more races. 29.3% of the population were Hispanic or Latino of any race. 22.8% reported speaking Spanish at home.<ref>{{cite web|url=http://www.mla.org/map_data_results&state_id=4&county_id=19&mode=geographic&order=r|title=Language Map Data Center|publisher=Mla.org|date=April 3, 2013|access-date=October 11, 2015}}</ref>

There were 332,350 households, out of which 29.2% had children under the age of 18 living with them, 47.7% were married couples living together, 11.8% had a female householder with no husband present, and 36.2% were non-families. 28.5% of all households were made up of individuals, and 9.4% 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 24.6% under the age of 18, 10.9% from 18 to 24, 28.4% from 25 to 44, 21.9% from 45 to 64, and 14.2% who were 65 years of age or older. The median age was 36 years. For every 100 females there were 95.7 males. For every 100 females age 18 and over, there were 92.7 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 10.5% of families and 14.7% of the population were below the poverty line, including 19.4% of those under age 18 and 8.2% 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.<ref name=OMB_13-01>{{cite web|url=https://obamawhitehouse.archives.gov/sites/default/files/omb/bulletins/2013/b13-01.pdf |archive-url=https://ghostarchive.org/archive/20221009/https://obamawhitehouse.archives.gov/sites/default/files/omb/bulletins/2013/b13-01.pdf |archive-date=October 9, 2022 |url-status=live|title=OMB Bulletin No. 13-01: Revised Delineations of Metropolitan Statistical Areas, Micropolitan Statistical Areas, and Combined Statistical Areas, and Guidance on Uses of the Delineations of These Areas|date=February 28, 2013|via=National Archives|work=Office of Management and Budget|access-date=March 20, 2013}}</ref> 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.<ref name=PopEstCBSA>{{cite web|url=https://www.census.gov/popest/data/metro/totals/2012/tables/CBSA-EST2012-01.csv|title=Table 1. Annual Estimates of the Population of Metropolitan and Micropolitan Statistical Areas: April 1, 2010 to July 1, 2012|format=CSV|work=2012 Population Estimates|publisher=United States Census Bureau, Population Division|date=March 2013|access-date=March 20, 2013|url-status=dead|archive-url=https://web.archive.org/web/20130401093220/http://www.census.gov/popest/data/metro/totals/2012/tables/CBSA-EST2012-01.csv|archive-date=April 1, 2013}}</ref>

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,<ref name=OMB_13-01/> the 53rd most populous combined statistical area and the 59th most populous primary statistical area of the United States as of July 1, 2012.<ref name=PopEstCBSA/><ref name=PopEstCSA>{{cite web|url=https://www.census.gov/popest/data/metro/totals/2012/tables/CBSA-EST2012-02.csv|title=Table 2. Annual Estimates of the Population of Combined Statistical Areas: April 1, 2010 to July 1, 2012|format=CSV|work=2012 Population Estimates|publisher=United States Census Bureau, Population Division|date=March 2013|access-date=March 20, 2013|url-status=dead|archive-url=https://web.archive.org/web/20130517083619/http://www.census.gov/popest/data/metro/totals/2012/tables/CBSA-EST2012-02.csv|archive-date=May 17, 2013}}</ref>

==Government, policing, and politics== 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's jurisdiction.

In Arizona, counties are creatures of the state, and do not have charters of their own. The county Board of Supervisors acts under powers delegated by state law, mainly related to minor ordinances and revenue collection. With few exceptions, these powers are narrowly construed. The state legislature devotes considerable time to local matters, with legislative approval required for many of the most basic local issues.

===Board of Supervisors and elected positions=== 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, Jan Lesher,<ref>{{cite web |last1=County |first1=Pima |title=Board appoints Jan Lesher as County Administrator |url=https://webcms.pima.gov/cms/One.aspx?portalId=169&pageId=852698 |website=Pima County |access-date=December 21, 2022 |archive-date=December 21, 2022 |archive-url=https://web.archive.org/web/20221221033950/https://webcms.pima.gov/cms/One.aspx?portalId=169&pageId=852698 |url-status=dead }}</ref> 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.

{| class="wikitable" <hiddentext>generated with :de:Wikipedia:Helferlein/VBA-Macro for EXCEL tableconversion V1.8</hiddentext> |- ! colspan="2" | Party ! District ! Name ! First elected ! Area(s) represented ! Official Website |- | style="background:blue;"| | Democratic | District 1 | Rex Scott | 2020 | Oro Valley, Marana, Catalina Foothills | [http://www.pima.gov/district1/ District 1] |- | style="background:blue;"| | Democratic | District 2 | Matt Heinz | 2020 | Tucson, Sahuarita, South Tucson | [http://www.pima.gov/district2/ District 2] |- | style="background:blue;"| | Democratic | District 3 | Jennifer Allen | 2024 | Tucson, Marana, Three Points, Sahuarita | [http://www.pima.gov/district3/ District 3] |- | style="background:red;"| | Republican | District 4 | Steve Christy | 2016 | Tucson, Vail, Summerhaven, Green Valley | [http://www.pima.gov/district4/ District 4] |- | style="background:blue;"| | Democratic | District 5 | Andrés Cano | 2025{{efn|Appointed to replace Adelita Grijalva.}} | Tucson, Sahuarita, Green Valley | [http://www.pima.gov/district5/ District 5] |} <ref>{{cite web|url=http://www.pima.gov/bos/|title=Board of Supervisors - Pima County|publisher=Pima.gov|date=April 16, 2013|access-date=October 11, 2015|archive-date=July 7, 2013|archive-url=https://web.archive.org/web/20130707015514/http://www.pima.gov/bos/|url-status=dead}}</ref>

Along with the Board of Supervisors the Arizona State Constitution allows for 7 other county elected officials.

{| class="wikitable" ! colspan="2" |Party !Office !Name !First elected !References |- | style="background:blue;" | |Democratic |Assessor |Suzanne Droubie |2020 |<ref>{{Cite web|url=http://www.asr.pima.gov/|title=Office of The Pima County Assessor|website=asr.pima.gov|access-date=January 23, 2017}}</ref> |- | style="background:blue;" | |Democratic |County Attorney |Laura Conover |2020 |<ref>{{Cite web|url=http://www.pcao.pima.gov/|title=Pima County Attorney|website=pcao.pima.gov|access-date=January 23, 2017}}</ref> |- | style="background:blue;" | |Democratic |County Recorder |Gabriella Cázares-Kelly |2020 |<ref>{{cite web |title=Pima County Recorder's Office - Recorder Chronology |url=https://www.recorder.pima.gov/RecorderChronology |website=www.recorder.pima.gov}}</ref> |- | style="background:blue;" | |Democratic |County School Superintendent |Dustin Williams |2016 |<ref>{{Cite web|url=http://www.schools.pima.gov/about-us/meet-the-superintendent|title=Meet the Superintendent - Pima County Schools - Tucson, AZ|website=schools.pima.gov|language=en|access-date=January 23, 2017}}</ref> |- | style="background:blue;" | |Democratic |Sheriff |Chris Nanos |2020 |<ref>{{Cite web|url=http://editorialmac.com/about-us/meet-sheriff/|title=Pima County Sheriff's Department :: Welcome from Sheriff Napier|website=editorialmac.com|language=en|access-date=January 23, 2017|archive-date=February 2, 2017|archive-url=https://web.archive.org/web/20170202022748/http://editorialmac.com/about-us/meet-sheriff/|url-status=dead}}</ref> |- | style="background:blue;" | |Democratic |Treasurer |Brian Johnson |2024 |<ref>{{Cite web|url=http://www.to.pima.gov/|title=Home|website=to.pima.gov|language=en-gb|access-date=January 23, 2017}}</ref> |- | style="background:blue;" | |Democratic |Clerk of Superior Court |Gary Harrison |2020 |<ref>{{Cite web|url=http://www.cosc.pima.gov/|title=Home|website=cosc.pima.gov/|language=en-gb|access-date=January 23, 2017}}</ref> |}

===Pima County sheriff=== 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.<ref>Pima County Sheriff wikipedia site</ref> Incorporated towns within the county with municipal police departments are Tucson, Marana, Oro Valley, and Sahuarita.

===Politics=== Being home to a major population center and a major research university, Pima County is one of the most reliably Democratic counties in Arizona. After voting Democratic through 1930s and 1940s, it swung Republican following major population increase after World War II, becoming a Republican-leaning county. However, in 1964, it rejected Arizona's native son Barry Goldwater by seven points, who won statewide by one point. However, despite the county's Republican lean, Democrats would not win 40% of the vote only twice - in 1972, when George McGovern lost in a 49-state landslide and due to a balloting error in the county, the Socialist Workers Party came a distant third with 18% of the vote;<ref>{{Cite web|last=Seeley|first=John|date=November 22, 2000|title=Early and Often|url=https://www.laweekly.com/early-and-often-3/|access-date=September 3, 2021|website=LA Weekly|language=en-US}}</ref> and in 1980, when Jimmy Carter lost many votes to independent John B. Anderson. Following Bill Clinton's plurality victory by 12 points in 1992, all Democrats since 1996 have won the county by a majority and no Republican has come closer than six points in recapturing the county. In both 2016 and 2020, Donald Trump became the first Republican since Bob Dole in 1996 to fail to win 40% of the county's vote. However, Trump won 41.8% of the county's vote in his third presidential run in 2024.<ref name=2024Results/> {{PresHead|place=Pima County, Arizona|source=<ref>{{cite web|title=Dave Leip's Atlas of United States Presidential Elections|access-date=June 11, 2011|url=http://uselectionatlas.org/RESULTS/}}</ref><ref>{{cite web|url=https://www.ourcampaigns.com/ContainerHistory.html?ContainerID=199|title=Our Campaigns|access-date=June 22, 2025}}</ref><ref>{{Cite news|url=http://apps.azsos.gov/election/2020/2020_general_state_canvass.pdf |archive-url=https://web.archive.org/web/20251214224957/https://apps.azsos.gov/election/2020/2020_general_state_canvass.pdf |archive-date=December 14, 2025 |url-status=live|title=Official Canvass of Results|last=Hobbs|first=Katie|author-link=Katie Hobbs|date=November 24, 2020|work=Secretary of State of Arizona|access-date=April 28, 2026}}</ref><ref name=2024Results>{{Cite news|url=http://apps.azsos.gov/election/2024/ge/canvass/20241105_GeneralCanvass_Signed.pdf |archive-url=https://web.archive.org/web/20251231153438/http://apps.azsos.gov/election/2024/ge/canvass/20241105_GeneralCanvass_Signed.pdf |archive-date=December 31, 2025 |url-status=live|title=2024 General Election Signed Canvass|last=Fontes|first=Adrian|author-link=Adrian Fontes|date=November 22, 2024|work=Secretary of State of Arizona|access-date=March 2, 2026}}</ref>}}  {{PresRow|1912|Democratic|353|693|758|Arizona}} {{PresRow|1916|Republican|2,616|2,079|227|Arizona}} {{PresRow|1920|Republican|3,392|2,455|0|Arizona}} {{PresRow|1924|Republican|3,559|2,594|2,286|Arizona}} {{PresRow|1928|Republican|6,635|4,976|42|Arizona}} {{PresRow|1932|Democratic|6,152|11,061|514|Arizona}} {{PresRow|1936|Democratic|6,079|12,249|262|Arizona}} {{PresRow|1940|Democratic|9,445|14,035|82|Arizona}} {{PresRow|1944|Democratic|10,850|13,006|57|Arizona}} {{PresRow|1948|Democratic|16,968|17,692|965|Arizona}} {{PresRow|1952|Republican|32,113|21,237|0|Arizona}} {{PresRow|1956|Republican|39,298|23,536|51|Arizona}} {{PresRow|1960|Republican|46,734|42,171|239|Arizona}} {{PresRow|1964|Democratic|46,955|54,120|203|Arizona}} {{PresRow|1968|Republican|49,479|39,786|8,501|Arizona}} {{PresRow|1972|Republican|73,154|56,223|31,733|Arizona}} {{PresRow|1976|Republican|77,264|71,214|6,583|Arizona}} {{PresRow|1980|Republican|93,055|64,418|29,584|Arizona}} {{PresRow|1984|Republican|123,830|91,585|2,197|Arizona}} {{PresRow|1988|Republican|117,899|113,824|2,750|Arizona}} {{PresRow|1992|Democratic|97,036|128,569|55,879|Arizona}} {{PresRow|1996|Democratic|104,121|137,983|22,448|Arizona}} {{PresRow|2000|Democratic|124,579|147,688|15,373|Arizona}} {{PresRow|2004|Democratic|171,109|193,128|3,255|Arizona}} {{PresRow|2008|Democratic|182,406|206,254|6,180|Arizona}} {{PresRow|2012|Democratic|174,779|201,251|7,143|Arizona}} {{PresRow|2016|Democratic|167,428|224,661|29,551|Arizona}} {{PresRow|2020|Democratic|207,758|304,981|7,996|Arizona}} {{PresRow|2024|Democratic|214,669|292,450|6,317|Arizona}} {{PresFoot}} {{U.S. SenHead|place=Pima County, Arizona|Seat=|source=}}  {{U.S. SenRow|2024|Democratic|193,021|298,751|13,970|Arizona}} {{U.S. SenFoot}} {{U.S. SenHead|place=Pima County, Arizona|Seat=3|source=}}  {{U.S. SenRow|2022|Democratic|144,936|248,230|15|Arizona}} {{U.S. SenFoot}}

==Communities== [[File:Pima County Incorporated and Unincorporated areas.svg|thumb|right|300px|Map of the incorporated and unincorporated cities and towns in Pima County. Also shown are the borders for the Indian Reservations in the county.]] [[File:Pima Co. Copper mines.jpg|thumb|Astronaut photo of the open-pit copper mines adjacent to Green Valley, 2010. North is to the left. ]]

===Cities=== * South Tucson * Tucson (county seat)

===Towns=== * Marana (partially in Pinal County) * Oro Valley * Sahuarita

===Census-designated places=== {{div col|colwidth=15em}} * Ajo * Ak Chin * Ali Chuk * Ali Chukson * Ali Molina * Anegam * Arivaca * Arivaca Junction * Avra Valley * Casas Adobes * Catalina * Catalina Foothills * Charco * Chiawuli Tak * Comobabi * Corona de Tucson * Cowlic * Drexel Heights * Elephant Head * Flowing Wells * Green Valley * Gu Oidak * Haivana Nakya * J-Six Ranchettes * Kleindale * Ko Vaya * Littletown (former) * Maish Vaya * Nelson * Nolic * Picture Rocks * Pimaco Two (former) * Pisinemo * Rillito * Rincon Valley * San Miguel * Santa Rosa * Sells * South Komelik * Summerhaven * Summit * Tanque Verde * Three Points * Topawa * Tucson Estates * Tucson Mountains * Vail * Valencia West * Ventana * Wahak Hotrontk * Why * Willow Canyon {{div col end}}

===Indian communities=== * Pascua Yaqui * San Xavier * Tohono O'odham (part)

===Other communities=== * Drexel-Alvernon * East Sahuarita * Kentucky Camp * Lukeville * Redington * Sasabe * Tortolita

===Ghost towns=== * Achi * Ahan Owuch * Ak Chut Vaya * Allen * Cerro Colorado * Helvetia * Hahuul Kawuch Vay, Arizona * Kentucky * Pantano * Redington * San Rafael * Total Wreck * Twin Buttes * List of ghost towns in Arizona

===County population ranking=== The population ranking of the following table is based on the 2020 census of Pima County.<ref>{{Cite web |title=2020: DEC Redistricting Data (PL-94-171) |url=https://data.census.gov/table/DECENNIALPL2020.P1?g=050XX00US04019$1600000&y=2020&tp=true |access-date=March 16, 2025 |publisher=United States Census Bureau}}</ref>

'''†''' county seat

{| class="wikitable sortable" |- !Rank !City/Town/etc. !Population (2020 Census) !Municipal type !Incorporated |- style="background:#ffff54;" | 1 | '''† Tucson''' | 542,629 | City | 1775 |- style="background:#dbe9f4;" | 2 | '''Casas Adobes''' | 70,973 | CDP | |- style="background:#dbe9f4;" | 3 | '''Catalina Foothills''' | 52,401 | CDP | |- style="background:#bfb;" | 4 | '''Marana''' | 51,908 | Town | 1977 |- style="background:#bfb;" | 5 | '''Oro Valley''' | 47,070 | Town | 1974 |- style="background:#bfb;" | 6 | '''Sahuarita''' | 34,134 | Town | 1994 |- style="background:#dbe9f4;" | 7 | '''Drexel Heights''' | 27,523 | CDP | |- style="background:#dbe9f4;" | 8 | '''Green Valley''' | 22,616 | CDP | |- style="background:#dbe9f4;" | 9 | '''Tanque Verde''' | 16,250 | CDP | |- style="background:#dbe9f4;" | 10 | '''Flowing Wells''' | 15,657 | CDP | |- style="background:#dbe9f4;" | 11 | '''Valencia West''' | 14,101 | CDP | |- style="background:#dbe9f4;" | 12 | '''Vail''' | 13,604 | CDP | |- style="background:#dbe9f4;" | 13 | '''Tucson Estates''' | 12,069 | CDP | |- style="background:#dbe9f4;" | 14 | '''Tucson Mountains''' | 10,862 | CDP | |- style="background:#dbe9f4;" | 15 | '''Picture Rocks''' | 9,551 | CDP | |- style="background:#dbe9f4;" | 16 | '''Corona de Tucson''' | 9,240 | CDP | |- style="background:#dbe9f4;" | 17 | '''Catalina''' | 7,551 | CDP | |- style="background:#dbe9f4;" | 18 | '''Rincon Valley''' | 5,612 | CDP | |- style="background:#dbe9f4;" | 19 | '''Avra Valley''' | 5,569 | CDP | |- style="background:#dbe9f4;" | 20 | '''Three Points''' | 5,184 | CDP | |- style="background:#dbe9f4;" | 21 | '''Summit''' | 4,724 | CDP | |- style="background:#ffff54;" | 22 | '''South Tucson''' | 4,613 | City | 1940 |- style="background:#dbe9f4;" | 23 | '''Ajo''' | 3,039 | CDP | |- style="background:#dbe9f4;" | 24 | '''Sells''' | 2,121 | CDP | |- style="background:#dbe9f4;" | 25 | '''Arivaca Junction''' | 970 | CDP | |- style="background:#dbe9f4;" | 26 | '''J-Six Ranchettes''' | 647 | CDP | |- style="background:#dbe9f4;" | 27 | '''Arivaca''' | 623 | CDP | |- style="background:#dbe9f4;" | 28 | '''Elephant Head''' | 588 | CDP | |- style="background:#dbe9f4;" | 29 | '''Santa Rosa''' | 474 | CDP | |- style="background:#dbe9f4;" | 30 | '''Pisinemo''' | 359 | CDP | |- style="background:#dbe9f4;" | 31 | '''Nelson''' | 249 | CDP | |- style="background:#dbe9f4;" | 32 | '''Topawa''' | 233 | CDP | |- style="background:#dbe9f4;" | 33 | '''San Miguel''' | 205 | CDP | |- style="background:#dbe9f4;" | 34 | '''South Komelik''' | 176 | CDP | |- style="background:#dbe9f4;" | 35 | '''Kleindale''' | 165 | CDP | |- style="background:#dbe9f4;" | 36 | '''Anegam''' | 149 | CDP | |- style="background:#dbe9f4;" | 37 | '''Maish Vaya''' | 129 | CDP | |- style="background:#dbe9f4;" | 38 | '''Gu Oidak''' | 126 | CDP | |- style="background:#dbe9f4;" | 39 | '''Why''' | 122 | CDP | |- style="background:#dbe9f4;" | 40 | '''Ali Chuk''' | 119 | CDP | |- style="background:#dbe9f4;" | 41 | '''Ali Chukson''' | 113 | CDP | |- style="background:#dbe9f4;" | 42 | '''Cowlic''' | 105 | CDP | |- style="background:#dbe9f4;" | 43 | '''Rillito''' | 94 | CDP | |- style="background:#dbe9f4;" | 44 | '''Wahak Hotrontk''' | 88 | CDP | |- style="background:#dbe9f4;" | 45 | '''Haivana Nakya''' | 72 | CDP | |- style="background:#dbe9f4;" | 46 | '''Summerhaven''' | 71 | CDP | |- style="background:#dbe9f4;" | 47 | '''Ali Molina''' | 61 | CDP | |- style="background:#dbe9f4;" | 48 | '''Ventana''' | 52 | CDP | |- style="background:#dbe9f4;" | 49 | '''Ak Chin''' | 50 | CDP | |- style="background:#dbe9f4;" | 50 | '''Chiawuli Tak''' | 48 | CDP | |- style="background:#dbe9f4;" | 51 | '''Comobabi''' | 44 | CDP | |- style="background:#dbe9f4;" | 52 | '''Ko Vaya''' | 43 | CDP | |- style="background:#dbe9f4;" | 53 | '''Charco''' | 27 | CDP | |- style="background:#dbe9f4;" | 54 | '''Nolic''' | 12 | CDP | |- style="background:#dbe9f4;" | 55 | '''Willow Canyon''' | 2 | CDP | |}

==Education== School districts with territory in the county, no matter how slight (even if the schools and administration are in other counties), include:<ref>{{cite web|url=https://www2.census.gov/geo/maps/DC2020/PL20/st04_az/schooldistrict_maps/c04019_pima/DC20SD_C04019.pdf |archive-url=https://ghostarchive.org/archive/20221009/https://www2.census.gov/geo/maps/DC2020/PL20/st04_az/schooldistrict_maps/c04019_pima/DC20SD_C04019.pdf |archive-date=October 9, 2022 |url-status=live|title=2020 CENSUS - SCHOOL DISTRICT REFERENCE MAP: Pima County, AZ|publisher=United States Census Bureau|accessdate=July 20, 2022}} - [https://www2.census.gov/geo/maps/DC2020/PL20/st04_az/schooldistrict_maps/c04019_pima/DC20SD_C04019_SD2MS.txt Text list]</ref>

Unified: {{div col|colwidth=30em}} * Ajo Unified School District * Amphitheater Unified School District * Catalina Foothills Unified School District * Flowing Wells Unified School District * Indian Oasis-Baboquivari Unified School District * Marana Unified School District * Sahuarita Unified School District * Sunnyside Unified School District * Tanque Verde Unified School District * Tucson Unified School District * Vail Unified School District {{div col end}}

Elementary: {{div col|colwidth=30em}} * Altar Valley Elementary School District * Continental Elementary School District * Empire Elementary School District * Redington Elementary School District * San Fernando Elementary School District {{div col end}}

Arizona State Schools for the Deaf and Blind is based in Tucson.

==Tourist attractions==

===Annual events=== * Pima County Fair Tucson Gem and Mineral Show Tucson Rodeo

===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

==County-Designated Historic Landmarks== * Ferguson House, Hacienda Del Bosquito, Desert Treasures, Designated 2018 * Harrenstein House, Designated 2018 * Viewpoint, Christina and Earl J. Johnson House, Designated 2021 * Jacobson House, Designated 2022

==See also== {{Portal|Arizona}} {{Commons category|Pima County, Arizona}} * National Register of Historic Places listings in Pima County, Arizona * Pima County Sheriff's Department * John G.F. Speiden - Jay Six Ranch * Federal Correctional Complex, Tucson

==Notes== {{notelist}}

==References== {{reflist}}

==External links== * [http://www.pima.gov/ Official website] * {{osmrelation|1832206}} * [http://webcms.pima.gov/government/ Pima County Government Departments] {{Webarchive|url=https://web.archive.org/web/20160329181616/http://webcms.pima.gov/government |date=March 29, 2016}}

{{Geographic Location |Centre = Pima County, Arizona |North = Maricopa County and Pinal County |Northeast = Graham County |East = Cochise County |Southeast = Santa Cruz County |South = Altar, Caborca, Plutarco Elías Calles, & Sáric Municipalities, Sonora {{flagicon|Mexico}} |Southwest = |West = Yuma County |Northwest = }} {{Pima County, Arizona| }} {{Arizona}} {{Authority control}}

Category:Pima County, Arizona Category:Arizona placenames of Native American origin Category:1864 establishments in Arizona Territory Category:Populated places in the United States established in 1864