Waukesha County, Wisconsin

county in Wisconsin, United States

Waukesha County is a county in the U.S. state of Wisconsin. As of the 2020 census, the population was 406,978,[1] making it the third-most largest county in Wisconsin. Its county seat is Waukesha.[2]


  1. "QuickFacts: Waukesha County, Wisconsin". United States Census Bureau. Retrieved August 23, 2023.
  2. "Find a County". National Association of Counties. Retrieved 2011-06-07.