Janesville, Wisconsin Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates
The population of Janesville, Wisconsin is 65,813 as of the 2023 American Community Survey, making it the 10th-largest city in Wisconsin. The median household income is $71,664, the median home value is $209,700, and the median age is 40.0.
The population has grown 4.4% since 2010 (63,623 → 66,428).
65,813
Population
1900
People / sq mi
$71,664
Median Income
$209,700
Median Home Value
Janesville covers 34.6 sq mi of land at 1900 people per square mile.
About Janesville, WI
Janesville is a city in Wisconsin with a population of 65,813. It ranks #10 among cities in Wisconsin by population. The median age is 40.0, in line with the national median. The population is 49.6% male and 50.4% female.
The median household income in Janesville is $71,664, near the US median of $74,580. 6.5% of residents live below the federal poverty level. Home values sit at a median of $209,700, with monthly rent averaging $1,037. The homeownership rate of 66.5% is close to the national rate of 64.8%.
Educational attainment in Janesville reflects 26.9% of adults 25 and older holding a bachelor's degree or higher, below the national average of 34.3%. Roughly 8.6% of workers primarily work from home, below the national work-from-home rate of 14.2%. The average commute is 21.4 minutes each way.
Janesville city Population History (2010-2024)
The city of Janesville city had a population of 63,623 in 2010 and 66,428 in 2024, a 4.4% growth over 14 years. The peak was 66,428 in 2024. Average annual growth rate: 0.31%.
66,428
Population (2024)
63,623
Population (2010)
66,428
Peak (2024)
0.31%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 63,623 |
| 2011 | 63,439 |
| 2012 | 63,509 |
| 2013 | 63,675 |
| 2014 | 63,853 |
| 2015 | 63,880 |
| 2016 | 64,023 |
| 2017 | 64,297 |
| 2018 | 64,483 |
| 2019 | 64,575 |
| 2020 | 65,651 |
| 2021 | 66,013 |
| 2022 | 65,964 |
| 2023 | 66,130 |
| 2024 | 66,428 |
Race & Ethnicity
| White | 86.8% |
| Black or African American | 3.2% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 1.2% |
| Two or More Races | 0.0% |
Economy & Income
$71,664
Median Household Income
$36,639
Per Capita Income
6.5%
Poverty Rate
3.0%
Unemployment Rate
Housing
$209,700
Median Home Value
$1,037
Median Rent
66.5%
Owner-Occupied
Education
94.2%
High School+
26.9%
Bachelor's+
Commute
0.7%
Drive Alone
79.6%
Public Transit
8.6%
Work From Home
21.4 min
Avg Commute
Community Profile
24.9%
Foreign Born
93.0%
Non-English at Home
7.1%
Veterans
13.9%
With Disability
95.5%
Health Insurance
95.2%
Internet Access
Employment by Industry
| Professional, Scientific & Management | 22.5% |
| Manufacturing | 19.5% |
| Education, Health Care & Social Services | 8.4% |
| Finance, Insurance & Real Estate | 7.0% |
| Retail Trade | 5.7% |
| Construction | 5.4% |
| Information | 4.5% |
| Arts, Entertainment & Food Services | 3.9% |
| Public Administration | 3.9% |
| Transportation & Warehousing | 1.2% |
| Agriculture & Mining | 1.0% |
Largest cities in Wisconsin
Largest counties in Wisconsin
Part of Wisconsin
Metro areas in Wisconsin
City rankings
Frequently Asked Questions
Janesville, Wisconsin has a population of 65,813 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 10th-largest city in Wisconsin.
The median household income in Janesville, Wisconsin is $71,664, with 6.5% of residents living below the federal poverty level.
The median home value in Janesville, Wisconsin is $209,700, with median monthly rent at $1,037 and a homeownership rate of 66.5%.
The median age in Janesville, Wisconsin is 40.0 years. The population is 49.6% male and 50.4% female.
The population has grown 4.4% since 2010 (63,623 → 66,428).
More from Wisconsin
Population 569,756
Population 275,568
Population 106,585
Population 99,147
Population 77,155
Full rankings of Wisconsin cities by population
Statewide data for Wisconsin
Population, race, income, age, and trends across Wisconsin
Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.