COUNTY · AZ
Pima County, Arizona
Pima County is a county in Arizona with FIPS code 04019 and an estimated population of 1,063,162 (Census 2023), 2nd largest of 15 in the state.
County facts
- Name
- Pima County
- State
- Arizona
- Type
- county
- FIPS code
- 04019
- State FIPS
- 04
- Population (2023)
- 1,063,162
- Change since 2020
- +1.7%
- State rank
- 2 of 15
Population is the Census Bureau’s Vintage 2023 estimate.
Major cities in Pima County
Other counties in Arizona
Questions
What is the FIPS code for Pima County?
Pima County, Arizona has the five-digit FIPS code 04019: 04 for the state and 019 for the county.
What state is Pima County in?
Pima County is in Arizona.
How do I know if an address is in this county?
Use the address lookup. ZIP codes and city names can cross county lines, so an address is the reliable check.
Sources: U.S. Census Bureau geographic reference files; Census Bureau Population Estimates, Vintage 2023. Last reviewed 2026-10-27.