Lake Mills is a city in Winnebago County, Iowa, United States. The population was 2,143 at the time of the 2020 census.
History
Lake Mills was platted in part of the northeast quadrant of Center Township in 1869. A gristmill had been built at the site in 1864. Lake Mills was incorporated as a city in 1880.
Geography
According to the United States Census Bureau, the city has a total area of , of which is land and is water.