COUNTY · WI
Dane County, Wisconsin
Dane County is a county in Wisconsin with FIPS code 55025 and an estimated population of 575,347 (Census 2023), 2nd largest of 72 in the state.
County facts
- Name
- Dane County
- State
- Wisconsin
- Type
- county
- FIPS code
- 55025
- State FIPS
- 55
- Population (2023)
- 575,347
- Change since 2020
- +2.3%
- State rank
- 2 of 72
Population is the Census Bureau’s Vintage 2023 estimate.
Major cities in Dane County
Other counties in Wisconsin
Questions
What is the FIPS code for Dane County?
Dane County, Wisconsin has the five-digit FIPS code 55025: 55 for the state and 025 for the county.
What state is Dane County in?
Dane 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.