Janesville, WI Census Data
Key demographic and economic indicators for Janesville, Wisconsin from the 2023 American Community Survey (ACS) 5-year estimates.
Updated: 2026-03-23 · Source: U.S. Census Bureau, ACS 2023
Population
65,813
49.6% male · 50.4% female
Median Age
40.0
1.3 above the national average (38.7 yrs)
Median Household Income
$71,664
6,874.0 below the national average ($78,538)
Bachelor's Degree or Higher
26.9%
8.1 below the national average (35.0%)
HS diploma or higher: 94.2%
Poverty Rate
9.6%
2.8 below the national average (12.4%)
Uninsured: 4.5%
Broadband Access
95.2%
5.5 above the national average (89.7%)
Median Home Value
$209,700
Median rent: $1,037 · 66% owner-occupied
Unemployment Rate
4.6%
Labor force participation: 62.0%
Demographics
Race & Ethnicity
Age Distribution
Commute to Work
Janesville, WI Frequently Asked Questions
What is the population of Janesville, WI?
The population of Janesville, WI is 65,813 according to the 2023 American Community Survey 5-year estimates. The median age is 40.0 years.
What is the median household income in Janesville?
The median household income in Janesville, WI is $71,664, below the national average of $78,538. Per capita income is $42,924.
What is the poverty rate in Janesville?
The poverty rate in Janesville, WI is 9.6%, compared to the national average of 12.4%. About 4.5% of residents lack health insurance.
What percentage of Janesville residents have a college degree?
26.9% of adults (25+) in Janesville hold a bachelor's degree or higher, and 94.2% have at least a high school diploma. The national average for bachelor's degree holders is 35.0%.
What is the median home value in Janesville?
The median home value in Janesville, WI is $209,700. Median rent is $1,037 per month, with 66% of housing units owner-occupied.
What is the racial makeup of Janesville?
Janesville's population is 86.8% White, 3.2% Black, 6.2% Hispanic or Latino, and 1.6% Asian (source: 2023 ACS).