COUNTY · OR
Columbia County, Oregon
Columbia County is a county in Oregon with FIPS code 41009 and an estimated population of 53,880 (Census 2023), 17th largest of 36 in the state.
County facts
- Name
- Columbia County
- State
- Oregon
- Type
- county
- FIPS code
- 41009
- State FIPS
- 41
- Population (2023)
- 53,880
- Change since 2020
- +2.2%
- State rank
- 17 of 36
Population is the Census Bureau’s Vintage 2023 estimate.
Questions
What is the FIPS code for Columbia County?
Columbia County, Oregon has the five-digit FIPS code 41009: 41 for the state and 009 for the county.
What state is Columbia County in?
Columbia County is in Oregon.
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.