Humidity & wind
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Population
66,929
US Census estimate, July 2025
Median home value
$223,400
Owner-occupied units
Janesville, WI
Wisconsin · 42.685° N, 89.013° W · 35 sq mi
Janesville is a city in Wisconsin, with a population of 66,929 and about 1,932 residents per square mile. The median household earns $73,446 a year, and the median home is worth $223,400.
Conditions
UV index
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Sunrise & sunset
—
Local time
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Size & density
Land area
35 sq mi
Water excluded
Population density
1,932
People per square mile
Rank by population
#625
Of cities on this site
Rank by area
#398
Of cities on this site
Money & housing
Median household income
$73,446
US median ≈ $78,538
Median gross rent
$1,054
Per month
Homeownership
67.3%
US ≈ 65%
Average commute
21.9 min
One way
People
Median age
40.7
US median 39.1
Bachelor's degree +
27.3%
Age 25 and over
Foreign born
3.8%
Households
28,326
2.3 people each
What people here do for work
Education & health care 21.7%
Manufacturing 19.4%
Retail trade 13.2%
Arts, food & hospitality 8.4%
Top four industries · share of all workers · ACS 2024
Wealthiest person in Wisconsin
Name
Diane Hendricks
Forbes, Apr 2025
Net worth
$21.9B
As of 25 Apr 2025 — not live
Lives in
Afton
Source of wealth
Building supplies
Compiled from public reporting, not from an official dataset, and not independently verified.
Largest employer in Wisconsin · private sector
Employer
Aurora Health Care
Sector
Healthcare
Compiled from public reporting, not from an official dataset, and not independently verified. Government employers are excluded.
Largest public company in Wisconsin
Company
Fiserv
Revenue
$20.5B
Fiscal year 2024
Headquarters
Milwaukee
Ticker
FI
Compiled from public reporting, not from an official dataset, and not independently verified.
State of Wisconsin
State bird
American Robin
State flower
Wood Violet
State capital
Madison
Nickname
The Badger State
Compare Janesville with
- Janesville vs MadisonSide by side
- Janesville vs RockfordSide by side
- Janesville vs AlpharettaSide by side
- Janesville vs WaterlooSide by side
- Janesville vs MilwaukeeSide by side
Cities near Janesville
- Rockford, IL30 mi · 147,384
- Madison, WI35 mi · 286,233
- Waukesha, WI45 mi · 70,872
- West Allis, WI55 mi · 60,119
- Elgin, IL57 mi · 115,476
- Kenosha, WI58 mi · 99,239
- Milwaukee, WI59 mi · 562,407
- Racine, WI61 mi · 77,908
Cities about the same size
- Alpharetta, GA66,921
- Waterloo, IA66,919
- Albany, GA66,907
- Eagan, MN67,109
- Union City, NJ66,656
- Brentwood, CA66,607
- Redondo Beach, CA67,281
- Gary, IN67,289
More in Wisconsin
- Green Bay106,675
- Appleton75,452
- Eau Claire72,465
- Oshkosh67,460
- La Crosse50,784