Pima County, Arizona: Quick Facts & Resources

Overview

Pima County ranks as Arizona’s second-most populous county, home to 1,043,433 residents according to the 2020 census. Its county seat, Tucson, is the state’s second-largest city. The county covers roughly 9,186 square miles of land and 2.6 square miles of water, yielding a population density of 116 people per square mile. Its December 2024 cost-of-living index of 89.8 sits comfortably below the national average of 100 Source 8.

Government & Public Services

The official county website at pima.gov serves as the central hub for news, services, and departments, covering Tucson as well as Marana, Oro Valley, Sahuarita, Ajo, Three Points, and Arivaca Source 1. The Board of Supervisors publishes meeting calendars, agendas, and video archives on the Legistar platform for full transparency. The Pima County Superior Court manages major civil, criminal, family, probate, and juvenile cases and offers online case-search tools Source 3. Meanwhile, the Sheriff’s Office operates the Pima County Detention Complex and provides an inmate-lookup tool Source 4.

Community & Education

The Friends of the Pima County Public Library raises funds for children’s, teen, and adult reading programs plus GED, computer-literacy, and job-search workshops Source 6.

Tourism & Recreation

Visitors can explore museums, scenic parks, desert trails, and the historic Old Tucson movie studio within the Tucson metro area Source 5.

FAQ

What is the population of Pima County?
Approximately 1.04 million residents as of the 2020 census.

Where is the county seat and largest city?
Tucson serves as both the county seat and Arizona’s second-largest city.

How large is Pima County geographically?
It covers about 9,186 square miles of land, making it one of Arizona’s largest counties.

How can I look up court cases or jail inmates?
Use the Pima County Superior Court and Sheriff’s Office online portals for case and inmate searches.

What visitor attractions are in Pima County?
Explore museums, desert trails, Saguaro National Park, and the historic Old Tucson studios.

How do I find upcoming Board of Supervisors meetings?
Check the public calendar on the Legistar platform linked from pima.gov.