COUNTY · AZ
Santa Cruz County, Arizona
Santa Cruz County is a county in Arizona with FIPS code 04023 and an estimated population of 49,158 (Census 2023), 12th largest of 15 in the state.
County facts
- Name
- Santa Cruz County
- State
- Arizona
- Type
- county
- FIPS code
- 04023
- State FIPS
- 04
- Population (2023)
- 49,158
- Change since 2020
- +3.0%
- State rank
- 12 of 15
Population is the Census Bureau’s Vintage 2023 estimate.
Questions
What is the FIPS code for Santa Cruz County?
Santa Cruz County, Arizona has the five-digit FIPS code 04023: 04 for the state and 023 for the county.
What state is Santa Cruz County in?
Santa Cruz 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.