Janesville, Wisconsin Demographics & Population 2026
During the 2020–2024 ACS period, Janesville, Wisconsin had a total population of 66,030, the 10th largest city in Wisconsin, with a median household income of $73,446, which is 5% lower than the state average. The poverty rate is 9.0%.
Data vintage: U.S. Census Bureau ACS 2020–2024 5-Year Estimates · refreshed July 2026 · Methodology & source notes
Janesville Quick Facts
How Janesville Changed
Change from the 2019–2023 ACS period to 2020–2024. These are rolling five-year estimates, not year-over-year measurements.
| Metric | 2019–2023 | 2020–2024 | Change |
|---|---|---|---|
| Population | 65,813 | 66,030 | +0.3% |
| Median household income | $71,664 | $73,446 | +2.5% |
| Median home value | $209,700 | $223,400 | +6.5% |
How Janesville Compares
Median Household Income
Median Home Value
Economy & Housing
Household Income Distribution
Detailed income brackets
Employment
Housing Overview
People & Demographics
Age Distribution
Race & Ethnicity
Diversity Index
A less diverse community where one racial or ethnic group represents a large majority.
State average: 37 | National average: 61
Education
Educational Attainment (Adults 25+)
Janesville Rankings in Wisconsin
Explore Wisconsin Rankings
Other Cities in Rock County
| City | Population | Median Income | Poverty | Home Value |
|---|---|---|---|---|
| Beloit | 36,534 | $62,663 | 15.0% | $156,500 |
| Evansville | 5,782 | $81,149 | 5.6% | $276,400 |
| Milton | 5,706 | $85,959 | 6.5% | $249,200 |
| Brodhead | 3,197 | $49,583 | 14.9% | $168,800 |
| Clinton | 2,041 | $72,019 | 5.9% | $209,400 |
| Orfordville | 1,473 | $65,417 | 8.8% | $194,900 |
| Footville | 908 | $68,571 | 11.6% | $160,800 |
| Hanover | 130 | $60,972 | 3.9% | $150,000 |
| Shopiere | 123 | N/A | 0.0% | $245,800 |
| Fulton | 31 | N/A | 48.4% | N/A |
Cities Similar to Janesville
These cities in the same state have comparable population and economic profiles.
| City | Population | Median Income | Home Value | Bachelor's+ | Poverty |
|---|---|---|---|---|---|
| Oshkosh | 66,729 | $62,188 | $177,700 | 27.4% | 17.5% |
| Eau Claire | 70,322 | $67,395 | $247,600 | 36.7% | 14.3% |
| Waukesha | 71,233 | $83,837 | $315,500 | 41.7% | 9.8% |
| West Allis | 59,612 | $67,611 | $203,800 | 29.6% | 11.5% |
| Appleton | 75,023 | $80,483 | $231,400 | 38.2% | 8.3% |
Population Overview
Janesville is a mid-sized community located in Wisconsin, within Rock County. The total population is 66,030. It ranks as the 10th most populous out of 808 Census-designated places in Wisconsin.
Age Demographics
The median age in Janesville is 40.7 years. This is 1% higher than the state median of 40.2 years.
Economy, Income & Housing
The median household income in Janesville is $73,446. This is 5% lower than the state median of $77,485. It is also 9% lower than the national median of $80,734. The poverty rate stands at 9.0%. This is 14% lower than the state poverty rate of 10.5%. The unemployment rate is 4.1%. This is 26% higher than the state rate of 3.3%. The median home value is $223,400. Housing costs are 16% lower than the state median of $266,500. The home-value-to-income ratio is 3.0x. 67.3% of occupied housing units are owner-occupied.
Race & Ethnicity
The largest racial or ethnic group in Janesville is White (non-Hispanic), making up 83.8% of the population. Hispanic or Latino residents account for 7.8%. The Black or African American population (3.0%) is well below the state average of 5.9%.
Education
27.3% of residents aged 25 and older hold a bachelor's degree or higher. This is 18% lower than the state rate of 33.4%. Nationally, 35.7% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 94.3%.
Data Sources & Methodology
All demographic data for Janesville, Wisconsin is sourced from the U.S. Census Bureau's American Community Survey (ACS) 2020–2024 5-Year Estimates. The ACS collects data from approximately 3.5 million households annually and pools five years of responses so that even small communities can be measured, though the margin of error widens as the population falls. Comparisons are made against Wisconsin state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 808 Census-designated places in Wisconsin. Read more about how these figures are produced on our methodology page, or visit data.census.gov for official data.
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Frequently Asked Questions
What is the population of Janesville, Wisconsin?
Janesville, Wisconsin has a population of 66,030 according to the most recent U.S. Census ACS 5-Year Estimates.
What is the median household income in Janesville, WI?
The median household income in Janesville is $73,446, which is 9% lower than the national median of $80,734.
What is the poverty rate in Janesville, WI?
The poverty rate in Janesville is 9.0%. This means approximately 5,910 residents live below the federal poverty line.
What is the racial makeup of Janesville, Wisconsin?
Janesville's population is 83.8% White, 3.0% Black, 7.8% Hispanic/Latino, and 1.6% Asian.
What is the median home value in Janesville, WI?
The median home value in Janesville is $223,400. The home-value-to-income ratio is 3.0x.
How educated is Janesville, Wisconsin?
27.3% of adults (25+) in Janesville hold a bachelor's degree or higher, and 8.5% hold a graduate or professional degree.