City of Lake Mills, Wisconsin

On the shores of Rock Lake

Welcome to the City of Lake Mills

Welcome to the official website of the City of Lake Mills. The City of Lake Mills is located in scenic Jefferson County on the Eastern shores of Rock Lake in Southern Wisconsin.  Through our website you will find information about our community, government, and many services available to you.




Municipal Building Information

 Monday-Friday, 8am-5pm
 200 Water St.
Lake Mills, WI  53551
 Phone: (920)648-2344
Fax: (920)648-2347