Rock County's estimated 2026 population is 9,485 with a growth rate of -0.41% in the past year according to the most recent United States census data. Rock County is the 70th largest county in Minnesota. The 2010 population was 9,658 and has seen a growth of -1.79% since that time.
Data after 2023 is projected based on recent change
Overall: 41.2 years
Female: 42.8 years
Male: 38.6 years
There are 7,272 adults, (1,966 of whom are seniors) in Rock County.
Female: 4,820 (50.1%)
Male: 4,801 (49.9%)
The racial composition of Rock County includes 93.06% White, and smaller percentages for other race, Native American, Asian, Black or African American and multiracial populations.
Race | Population | Percentage (of total) |
|---|---|---|
| White | 8,953 | 93.06% |
| Two or more races | 433 | 4.5% |
| Other race | 123 | 1.28% |
| Native American | 55 | 0.57% |
| Asian | 43 | 0.45% |
| Black or African American | 14 | 0.15% |
Rock County's average per capita income is $50,996. Household income levels show a median of $71,295. The poverty rate stands at 10.62%.
Name | Median | Mean |
|---|---|---|
| Married Families | $104,849 | - |
| Families | $100,605 | $112,392 |
| Households | $71,295 | $91,311 |
| Non Families | $34,202 | $49,738 |
Average Income
Median Household Income
Poverty Rate
