COUNTY · CA
Los Angeles County, California
Los Angeles County is a county in California with FIPS code 06037 and an estimated population of 9,663,345 (Census 2023), 1st largest of 58 in the state.
County facts
- Name
- Los Angeles County
- State
- California
- Type
- county
- FIPS code
- 06037
- State FIPS
- 06
- Population (2023)
- 9,663,345
- Change since 2020
- -3.3%
- State rank
- 1 of 58
Population is the Census Bureau’s Vintage 2023 estimate.
Major cities in Los Angeles County
Other counties in California
Questions
What is the FIPS code for Los Angeles County?
Los Angeles County, California has the five-digit FIPS code 06037: 06 for the state and 037 for the county.
What state is Los Angeles County in?
Los Angeles County is in California.
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.