Milwaukee Metro Area Counties

4 counties · 1.6 million people (2025) · 1,455 sq mi

The Milwaukee metro area (officially the Milwaukee-Waukesha, WI Metropolitan Statistical Area) has 4 counties in Wisconsin, with 1,575,010 people in 2025. Milwaukee County is the most populous.

Map of the 4 counties of the Milwaukee metro area with county names and major cities
The 4 counties of the Milwaukee metro area (yellow) with the largest cities. Boundaries: U.S. Census Bureau, 2025. Free to use with attribution (CC BY 4.0).
PDF (Letter) 123 KBPNG (2400 px) 95 KB

The 4 counties of the Milwaukee metro area

Sorted by population. 2 are central counties (the urban core); the others are outlying counties tied to it by commuting.

CountyCounty seatPopulation 2025Change since 2020Land area (sq mi)Type
Milwaukee CountyMilwaukee924,216−1.6%242Central
Waukesha CountyWaukesha417,210+2.5%550Central
Washington CountyWest Bend139,238+1.8%431Outlying
Ozaukee CountyPort Washington94,346+3.1%233Outlying

The metro area is part of the larger Milwaukee-Racine-Waukesha, WI Combined Statistical Area.

Printable map

The PDF is a vector file for Letter paper; the PNG is 2400 pixels wide. Both are free to use with a credit to WhichCounty.

County maps of Wisconsin

Other metro areas

All 97 metro area county maps

Sources