Rock Lake is located in Lyon County, Minnesota. Rock Lake has a 2025 population of 276 . Rock Lake is currently declining at a rate of 0% annually and its population has increased by 0.36% since the most recent census, which recorded a population of 275 in 2020.
The average household income in Rock Lake is $101,019 with a poverty rate of 0%. The median age in Rock Lake is 34.8 years: 34.7 years for males, and 36 years for females. For every 100 females there are 120.0 males.
Data after 2023 is projected based on recent change
The racial composition of Rock Lake includes 91.19% White, and smaller percentages for other race and multiracial populations.
White (91.19%)
Two or more races (6.53%)
Other race (2.27%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 321 | 91.19% |
| Two or more races | 23 | 6.53% |
| Other race | 8 | 2.27% |
Married
Widowed
Divorced
Separated
Never Married
Rock Lake's average per capita income is $49,625. Household income levels show a median of $88,750. The poverty rate stands at 0%.
Name | Median | Mean |
|---|---|---|
| Families | $101,250 | $109,889 |
| Married Families | $101,250 | $109,889 |
| Households | $88,750 | $101,019 |
| Non Families | - | $49,767 |
Average Income
Median Household Income
Poverty Rate