COUNTY · WI
Walworth County, Wisconsin
Walworth County is a county in Wisconsin with FIPS code 55127 and an estimated population of 105,822 (Census 2023), 15th largest of 72 in the state.
County facts
- Name
- Walworth County
- State
- Wisconsin
- Type
- county
- FIPS code
- 55127
- State FIPS
- 55
- Population (2023)
- 105,822
- Change since 2020
- +0.5%
- State rank
- 15 of 72
Population is the Census Bureau’s Vintage 2023 estimate.
Questions
What is the FIPS code for Walworth County?
Walworth County, Wisconsin has the five-digit FIPS code 55127: 55 for the state and 127 for the county.
What state is Walworth County in?
Walworth County is in Wisconsin.
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.