Race & Ethnicity
Age Breakdown
Key Indicators
| Median Age | 39.9 yrs |
|---|---|
| Avg HH Size | 2.43 |
| Below Poverty | 9.8% ≈ Avg |
| College Grads | 38.2% ≈ Avg |
| Unemployment | 4.0% ▼ 19% below avg |
| No HS Diploma | 1,067 (1%) |
| HS Graduate | 35,275 (33.1%) |
| Some College | 13,136 (12.3%) |
| Associates | 16,223 (15.2%) |
| Bachelors | 13,137 (12.3%) |
| Graduate Degree | 27,875 (26.1%) |
Education
Housing Tenure
Home Value Distribution
Financials
| Median HH Income | $74,043 ≈ Avg |
|---|---|
| Median Home Value | $211,775 ▼ 24% below avg |
| Home/Income Ratio | 2.9x (nat avg ~3.5x) |
| Median Rent | $1,015/mo |
| Total Housing Units | 70,481 |
| Vacant Units | 4,169 |
Income Distribution
How People Get to Work
Commute Time
Year Built
Rock County is located in Wisconsin and encompasses 15 ZIP codes spanning 11 cities and communities. The county has an estimated population of 163,221 residents. With a median age of 39.92, it is a middle-aged county.
Rock County has a solidly middle-class economic profile. The median household income of $74,043 is near the national average. Unemployment stands at 4.0%, below the national average. The poverty rate of 9.8% is near the national average.
Housing in Rock County is an affordable housing market, with a median home value of $211,775 — below the national average. Monthly median rent is approximately $1,014. Homeownership rates are high at 70.6%, reflecting a largely residential, stable population.
The residents of Rock County are primarily White (80.22%). Educational attainment is moderately educated — 38.2% of adults hold a bachelor's degree or higher, near the national average.
Rock County, WI is a solidly middle-class area in Wisconsin. The 15 ZIP codes within the county each have their own character — browse the full list below to find the right community, whether you're looking for affordable housing, strong schools, or economic opportunity.
| ZIP | City | Population | Median Income | Median Home | Median Rent | Unemp. | College |
|---|---|---|---|---|---|---|---|
| 53505 | Avalon | 370 | $96,667 | $258,300 | $1,250 | 4.1% | 42.8% |
| 53511 | Beloit | 48,305 | $65,305 | $160,000 | $995 | 5.4% | 31.9% |
| 53525 | Clinton | 4,083 | $72,991 | $229,100 | $1,036 | 5.9% | 31.4% |
| 53534 | Edgerton | 12,344 | $94,250 | $280,100 | $1,102 | 1.5% | 45.1% |
| 53536 | Evansville | 9,449 | $83,944 | $274,600 | $927 | 2.1% | 45.1% |
| 53537 | Footville | 818 | $56,375 | $147,400 | $723 | 3.4% | 24.9% |
| 53545 | Janesville | 23,937 | $70,730 | $204,000 | $1,006 | 4.5% | 40.9% |
| 53546 | Janesville | 29,482 | $73,430 | $220,100 | $1,076 | 3.1% | 38.4% |
| 53548 | Janesville | 20,509 | $74,696 | $226,600 | $999 | 5.4% | 40.3% |
| 53563 | Milton | 11,468 | $89,397 | $270,800 | $972 | 0.7% | 44.9% |
| 53576 | Orfordville | 2,309 | $72,917 | $206,800 | — | 2.3% | 43.8% |