COUNTY · WI
Milwaukee County, Wisconsin
Milwaukee County is a county in Wisconsin with FIPS code 55079 and an estimated population of 916,205 (Census 2023), 1st largest of 72 in the state.
County facts
- Name
- Milwaukee County
- State
- Wisconsin
- Type
- county
- FIPS code
- 55079
- State FIPS
- 55
- Population (2023)
- 916,205
- Change since 2020
- -2.4%
- State rank
- 1 of 72
Population is the Census Bureau’s Vintage 2023 estimate.
Major cities in Milwaukee County
Other counties in Wisconsin
Questions
What is the FIPS code for Milwaukee County?
Milwaukee County, Wisconsin has the five-digit FIPS code 55079: 55 for the state and 079 for the county.
What state is Milwaukee County in?
Milwaukee 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.