Pima County, Arizona

County seat: Tucson · Population 1.1 million (2025) · 9,189 sq mi

Pima County is the 2nd most populous of Arizona's 15 counties, with 1,074,685 people (2025 estimate). Its county seat is Tucson. The map shows its 5 cities and towns and the 6 neighboring counties.

Map of Pima County, Arizona with cities, towns and the county boundary
Pima County, Arizona with its cities and towns, unincorporated communities (CDPs) and neighboring counties. Boundaries: U.S. Census Bureau, 2025. Free to use with attribution (CC BY 4.0).
Download PDF (Letter) 116 KBPNG image 75 KBArizona county map

Pima County facts

County seat
Tucson
Population (2025 estimate)
1,074,685 +3% since 2020
Land area
9,189 sq mi 6th largest of 15
Water area
2 sq mi
Population density
117 per sq mi
Established
1864
Named after
Akimel O'odham Native American people
Largest city
Tucson 548,371
Median household income
$70,315
Cities and towns
5 plus 50 CDPs
ZIP codes
56
Time zone
Mountain (no DST)
FIPS code
04019

Cities and towns in Pima County

Pima County has 5 incorporated cities, towns and villages. Populations count the people living inside Pima County; cities that cross a county line also list the other counties.

NameTypePopulation 2025Also in
Tucson (county seat)City548,371
MaranaTown65,523Pinal County
Oro ValleyTown48,085
SahuaritaTown37,694
South TucsonCity4,452

Unincorporated communities (CDPs)

Census-designated places are communities without their own city government; the county provides their services.

CommunityPopulationAlso in
Casas Adobes72,059
Catalina Foothills52,593
Drexel Heights27,675
Green Valley22,114
Flowing Wells16,559
Vail16,315
Tanque Verde15,866
Valencia West14,728
Tucson Estates12,136
Tucson Mountains11,353
Corona de Tucson9,566
Picture Rocks9,448
Rincon Valley6,512
Catalina6,489
Avra Valley6,277
Three Points5,254
Summit4,896
Ajo3,107
Sells1,935
Arivaca Junction642
Santa Rosa615
Nelson519
Elephant Head481
J-Six Ranchettes419
Pisinemo311
Arivaca268
San Miguel237
Gu Oidak192
South Komelik178
Ali Molina171
Topawa166
Chiawuli Tak146
Wahak Hotrontk125
Haivana Nakya96
Anegam92
Ventana92
Ali Chukson77
Ko Vaya53
Kleindale52
Why52
Maish Vaya38
Cowlic25
Ak Chin22
Ali Chuk18
Charco7
Comobabi0
Nolic0
Rillito0
Summerhaven0
Willow Canyon0

ZIP codes in Pima County

56 ZIP codes reach into Pima County. ZIP codes ignore county lines, so some also cover a neighboring county.

Population of Pima County, 2020–2025

Pima County grew by 31,254 people (+3%) between April 2020 and July 2025: 10,627 more deaths than births and a net gain of 41,221 people from migration.

Year (July 1)Population
20201,045,245
20211,049,271
20221,058,224
20231,065,239
20241,073,456
20251,074,685

Neighboring counties

Printable Pima County map

The PDF is a vector file with real text: it prints sharp on Letter paper and you can search it for a town. The PNG is 2400 pixels wide for slides and documents. Both are free to use with a credit to WhichCounty.

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Sources

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