Lake Mills is a city in Winnebago County, Iowa, United States.

[2] Lake Mills was platted in part of the northeast quadrant of Center Township in 1869.

There were 1,051 housing units at an average density of 387.2 per square mile (149.5/km2).

Hispanic or Latino persons of any race comprised 8.4% of the population.

As of the census[9] of 2010, there were 2,100 people, 944 households, and 552 families living in the city.

There were 1,055 housing units at an average density of 390.7 per square mile (150.9/km2).

37.1% of all households were made up of individuals, and 18.5% had someone living alone who was 65 years of age or older.

As of the census[10] of 2000, there were 2,140 people, 957 households, and 580 families living in the city.

36.6% of all households were made up of individuals, and 18.2% had someone living alone who was 65 years of age or older.