Rock County, Wisconsin
WI · FIPS 55105 · ACS 2024 5-Year Estimates
| Metric | Value | vs National | Rank | Percentile |
|---|---|---|---|---|
| Total Population | 164,350 | — | #420 / 3,222 | |
| Median Household Income | $75,673 | +0.7% | #797 / 3,222 | |
| Median Age | 40.3 years | +3.6% | #2,046 / 3,222 | |
| Median Home Value | $231,600 | -17.8% | #1,068 / 3,222 | |
| Median Gross Rent | $1,037 | -10.8% | #883 / 3,222 | |
| Poverty Rate | 9.3% | -26.5% | #634 / 3,222 | |
Demographics
Rock County has a population of 164,350, making it the #420 most populous county in the US. The median age is 40.3 years, which is 3.6% above the national median.
Population Trend
Rankings →Year-over-Year Population Growth
Age & Sex Distribution
Race & Ethnicity
Nativity
Household Type
Economy
The median household income in Rock County is $75,673, ranking #797 out of 3,222 counties — 0.7% above the national median. The poverty rate is 9.3% and unemployment stands at 3.8%.
Median Household Income Trend
Rankings →Poverty Rate Trend
Rankings →Housing
The median home value in Rock County is $231,600 (-17.8% vs national). Renters pay a median of $1,037/mo and the homeownership rate is 71.2%.
Median Home Value Trend
Rankings →Health
94.5% of residents in Rock County have health insurance coverage, which is 3.0% above the national rate.
About Rock County, Wisconsin
Rock County, Wisconsin has a total population of 164,350, making it the 420th most populous county in the United States. The median age in Rock County is 40.3 years, which is 3.6% above the national median of 38.9 years.
The median household income in Rock County is $75,673, which ranks #797 of 3,222 counties nationwide. This is 0.7% above the national median of $75,149. The poverty rate is 9.3%, lower than the national rate of 12.6%. The unemployment rate stands at 3.8%.
The median home value in Rock County is $231,600, 17.8% below the national median. Renters in Rock County pay a median gross rent of $1,037 per month. The homeownership rate is 71.2%, compared to the national rate of 64.4%.
In Rock County, 25.8% of residents aged 25 and older hold a bachelor's degree or higher, 23.4% below the national average of 33.7%. Health insurance coverage stands at 94.5% of the population. The average commute time for workers is 25.9 min.
Rock County is a diverse community. The largest racial or ethnic group is White (non-Hispanic) at 79.6% of the population, followed by Hispanic or Latino (10.1%) and Black (non-Hispanic) (4.6%).
All data for Rock County, Wisconsin comes from the U.S. Census Bureau's American Community Survey (ACS) 5-Year Estimates. These figures are estimates based on survey sampling and are subject to margin of error. For the most detailed and up-to-date data, visit the Census Bureau's official data portal.