Kenosha County is located in the southeastern corner of the U.S. state of Wisconsin. The population was 169,151 as of the 2020 census, making it the eighth most populous county in Wisconsin. The county is named after the county seat, Kenosha, the fourth largest city in Wisconsin. Kenosha County is part of the Chicago-Joliet-Naperville, IL-IN-WI Metropolitan Statistical Area. It is on the west shore of Lake Michigan.