Milwaukee County, Wisconsin

Milwaukee County is located in the U.S. state of Wisconsin. As of the 2010 census, the population was 947,735 and was estimated to be 945,726 in 2019. It is both the most populous and most densely populated county in Wisconsin, and the 45th most populous county nationwide; Milwaukee, its eponymous county seat, is also the most populous city in the state. The county was created in 1834 as part of Michigan Territory and organized the following year.Milwaukee County is the most populous county of the Milwaukee-Waukesha-West Allis, WI Metropolitan Statistical Area, as well as of the Milwaukee-Racine-Waukesha, WI Combined Statistical Area.

There are 19 cities in Milwaukee County; after the city of Milwaukee, the most populous as of 2019 are West Allis, Wauwatosa, Greenfield, Oak Creek, and Franklin. The county is home to two major-league professional sports teams, the Milwaukee Bucks and Milwaukee Brewers, and one of the world's largest music festivals, Summerfest.