Lake Mills is a city located in Winnebago County, Iowa. Lake Mills has a 2025 population of 2,060. Lake Mills is currently declining at a rate of -0.82% annually and its population has decreased by -3.83% since the most recent census, which recorded a population of 2,142 in 2020.
The average household income in Lake Mills is $74,500 with a poverty rate of 15.87%. The median age in Lake Mills is 43.8 years: 42 years for males, and 45 years for females.
Data after 2023 is projected based on recent change
The racial composition of Lake Mills includes 90.21% White, and smaller percentages for other race, Asian and multiracial populations.
White (90.2%)
Two or more races (9.0%)
Other race (0.6%)
Asian (0.2%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 1,853 | 90.21% |
| Two or more races | 184 | 8.96% |
| Other race | 12 | 0.58% |
| Asian | 5 | 0.24% |
Married
Widowed
Divorced
Separated
Never Married
Lake Mills' average per capita income is $44,229. Household income levels show a median of $70,333. The poverty rate stands at 15.87%.
Name | Median | Mean |
|---|---|---|
| Married Families | $105,536 | - |
| Families | $77,222 | $86,675 |
| Households | $70,333 | $74,500 |
| Non Families | $43,611 | $49,185 |
Average Income
Median Household Income
Poverty Rate