COUNTY · RI
Washington County, Rhode Island
Washington County is a county in Rhode Island with FIPS code 44009 and an estimated population of 129,982 (Census 2023), 3rd largest of 5 in the state.
County facts
- Name
- Washington County
- State
- Rhode Island
- Type
- county
- FIPS code
- 44009
- State FIPS
- 44
- Population (2023)
- 129,982
- Change since 2020
- +0.2%
- State rank
- 3 of 5
Population is the Census Bureau’s Vintage 2023 estimate.
Other counties in Rhode Island
Questions
What is the FIPS code for Washington County?
Washington County, Rhode Island has the five-digit FIPS code 44009: 44 for the state and 009 for the county.
What state is Washington County in?
Washington County is in Rhode Island.
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.