Marathon County vs Rock County
A side-by-side comparison of Marathon County and Rock County: population, income, housing, and more.
Marathon County and Rock County are counties in Wisconsin. This page compares them across population, income, housing, education, commuting, and how each has changed since 2019.
Rock County has the higher population (163,944 vs 138,067 in Marathon County). Marathon County has the higher median household income ($76,185 vs $74,390 in Rock County). Rock County has the higher median home value ($215,900 vs $205,500 in Marathon County).
Population, income & housing
| Marathon County | Rock County | |
|---|---|---|
| Population | 138,067 | 163,944 |
| Median age | 41.2 yrs | 40.1 yrs |
| Median household income | $76,185 | $74,390 |
| Median home value | $205,500 | $215,900 |
| Median gross rent | $950 | $1,019 |
| Housing units | 60,296 | 70,694 |
| Homeownership rate | 73.4% | 70.6% |
| Bachelor's degree or higher | 27.3% | 25.7% |
| Unemployment rate | 2.9% | 4.0% |
Trends (ACS 5-year, 2019–2023)
| Marathon County | Rock County | |
|---|---|---|
| Population | 135,396 → 138,067 (+2.0%) | 162,152 → 163,944 (+1.1%) |
| Median household income | $62,633 → $76,185 (+21.6%) | $57,875 → $74,390 (+28.5%) |
| Median home value | $156,300 → $205,500 (+31.5%) | $146,200 → $215,900 (+47.7%) |
| Median gross rent | $758 → $950 (+25.3%) | $838 → $1,019 (+21.6%) |
Marathon County
135,396138,067
$62,633$76,185
$156,300$205,500
$758$950
Rock County
162,152163,944
$57,875$74,390
$146,200$215,900
$838$1,019
Age & race/ethnicity
Age distribution (share)
| Marathon County | Rock County | |
|---|---|---|
| Under 5 | 5.6% | 5.7% |
| 5 to 17 | 17.0% | 17.0% |
| 18 to 24 | 7.4% | 8.4% |
| 25 to 34 | 11.9% | 12.2% |
| 35 to 44 | 12.8% | 12.6% |
| 45 to 54 | 12.2% | 12.5% |
| 55 to 64 | 14.3% | 14.2% |
| 65 to 74 | 10.9% | 10.5% |
| 75 and over | 7.7% | 6.8% |
Race & ethnicity (share)
| Marathon County | Rock County | |
|---|---|---|
| White (non-Hispanic) | 86.8% | 80.2% |
| Black or African American | 0.5% | 4.6% |
| American Indian & Alaska Native | 0.1% | 0.0% |
| Asian | 5.5% | 1.1% |
| Native Hawaiian & Pacific Islander | 0.0% | 0.0% |
| Some other race | 0.2% | 0.2% |
| Two or more races | 3.5% | 3.9% |
| Hispanic or Latino | 3.4% | 9.9% |
Educational attainment (age 25+)
Share of adults 25+
| Marathon County | Rock County | |
|---|---|---|
| No high school diploma | 6.9% | 7.4% |
| High school graduate | 32.9% | 33.3% |
| Some college or associate's | 32.9% | 33.6% |
| Bachelor's degree | 19.0% | 17.7% |
| Graduate or professional degree | 8.3% | 8.0% |
Commute to work
How workers get to work (share)
| Marathon County | Rock County | |
|---|---|---|
| Drove alone | 76.5% | 80.3% |
| Carpooled | 8.4% | 8.2% |
| Public transit | 0.3% | 0.5% |
| Walked | 1.9% | 1.8% |
| Bicycle | 0.3% | 0.2% |
| Worked from home | 11.7% | 8.2% |
| Other means | 1.0% | 1.0% |
Housing
Units in structure (share)
| Marathon County | Rock County | |
|---|---|---|
| 1-unit, detached | 75.4% | 74.3% |
| 1-unit, attached | 2.6% | 4.3% |
| 2 to 4 units | 5.9% | 7.5% |
| 5 to 19 units | 8.6% | 5.6% |
| 20 or more units | 4.8% | 5.8% |
| Mobile home & other | 2.6% | 2.5% |
Poverty & households
| Marathon County | Rock County | |
|---|---|---|
| Poverty rate | 8.9% | 10.0% |
| Average household size | 2.40 | 2.42 |
| Mean commute (minutes) | 19 | 24 |
| Median year structure built | 1977 | 1970 |
Full profiles
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