COUNTY · MN
Washington County, Minnesota
Washington County is a county in Minnesota with FIPS code 27163 and an estimated population of 278,936 (Census 2023), 5th largest of 87 in the state.
County facts
- Name
- Washington County
- State
- Minnesota
- Type
- county
- FIPS code
- 27163
- State FIPS
- 27
- Population (2023)
- 278,936
- Change since 2020
- +3.9%
- State rank
- 5 of 87
Population is the Census Bureau’s Vintage 2023 estimate.
Questions
What is the FIPS code for Washington County?
Washington County, Minnesota has the five-digit FIPS code 27163: 27 for the state and 163 for the county.
What state is Washington County in?
Washington County is in Minnesota.
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.