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Advertise here →Janesville, WI · Houses & Market Data
Janesville, Wisconsin houses and real estate market data.
Houses in Janesville, WI (Rock County) — Census median home value $209,700, county listing prices up about 3.4% over the past year. Market data for Janesville houses and the broader area.
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Janesville, WI is in Rock County, Wisconsin — this guide covers houses in Janesville and the whole local market: resale homes, condos, land, and new construction. The most recent Census estimate puts the population at 65,813, with a median household income of $71,664. Census data puts Janesville houses at a median value of $209,700 (all owner-occupied homes); Rock County's current median listing price runs $379,900, up about 3.4% over the past year.
Info from government sites and builders may have provided source info.
Market overview
Janesville housing market
Janesville is in Rock County, Wisconsin. Manifest Census and county price-trend data provide baseline context for houses in Janesville and the surrounding county market.
Median home value (Census ACS)
$209,700
Population (Census ACS)
65,813
Median household income
$71,664
County price trend (2025)
5.1% YoY
Population, income, and median home value from the project batch manifest (Census ACS 2023 5-year). County price trend from FHFA county HPI when present in the manifest row.
At a glance
Janesville market snapshot
Population
65,813
County
Rock County
Median Household Income
$71,664
Median Home Value (city)
$209,700
Median Listing Price (Rock County)
$379,900
Median Gross Rent
$1,037/mo
Price Trend (YoY)
+3.4%
Market data compiled from public sources; deemed reliable but not guaranteed; verify independently. See About
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What makes Janesville different
Home Value, By Source
The Census Bureau's American Community Survey (2023 5-year estimate) puts Janesville's median home value — across all owner-occupied homes, not just recent sales — at $209,700. Separately, Rock County's current median listing price (via Realtor.com data, 2026-06-01) runs $379,900. These cover different geography (city vs. county) and different measures (assessed value vs. active listings), which is why we show both rather than picking one — full source list on our data sources page.
County Price Trend
Rock County's FHFA house price index shows a 5.1% annual change in 2025.
Population & Income
Janesville has an estimated population of 65,813 and a median household income of $71,664, per the Census Bureau's American Community Survey (2023 5-year estimate).
Affordability Snapshot
Janesville's Census-reported median home value works out to about 2.9x the area's median household income, and median gross rent runs roughly 17% of that same income on an annualized basis. Housing economists commonly flag a price-to-income ratio above 4x as historically elevated -- useful context, not a personal affordability verdict.
Nearby
Places around Janesville
County guide: Rock County — cities, market context, and local resources for the county that includes Janesville.
USAHouses.com also helps visitors looking in nearby Rock County and other Wisconsin communities. Some locations may not yet have dedicated pages, but many licensed professionals in this region assist surrounding communities.
Nearby communities include Milton, Hanover, Shopiere, Footville, Fulton, Beloit, Clinton, Orfordville, Evansville.
Milton market data
Nearby city · ~7.2 mi
Hanover market data
Nearby city · ~8.6 mi
Shopiere market data
Nearby city · ~8.7 mi
Footville market data
Nearby city · ~10.0 mi
Fulton market data
Nearby city · ~10.1 mi
Beloit market data
Nearby city · ~11.1 mi
Clinton market data
Nearby city · ~11.5 mi
Orfordville market data
Nearby city · ~13.0 mi
Evansville market data
Nearby city · ~15.7 mi
More Wisconsin cities with market guides: Madison, Green Bay, Kenosha, Racine, Appleton, Waukesha, Eau Claire, Oshkosh.
Madison market data
Same-state city guide
Green Bay market data
Same-state city guide
Kenosha market data
Same-state city guide
Racine market data
Same-state city guide
Appleton market data
Same-state city guide
Waukesha market data
Same-state city guide
Eau Claire market data
Same-state city guide
Oshkosh market data
Same-state city guide
Adjacent-county Census places with USAHouses.com pages: Edgerton (~11.0 mi), Lake Koshkonong (~12.7 mi), Lake Lorraine (~14.2 mi), Allens Grove (~14.5 mi), Darien (~16.3 mi), Turtle Lake (~17.4 mi), Whitewater (~17.6 mi), Fort Atkinson (~18.6 mi), Brodhead (~19.0 mi), Sharon (~19.3 mi), Stoughton (~19.6 mi), Rockdale (~19.7 mi), Delavan (~19.8 mi), Delavan Lake (~20.6 mi), Albany (~21.6 mi), Brooklyn (~21.7 mi).
New construction: New homes near Janesville (Milwaukee) · Wisconsin new construction.
Census & home facts
Janesville data from published sources
Population (ACS 2023)
65,813
Median home value (ACS 2023)
$209,700
Median household income (ACS 2023)
$71,664
Median gross rent (ACS 2023)
$1,037
County FHFA annual change (2025)
5.1%
County median listing price (FRED/Realtor.com) (2026-06-01)
$379,900
Census place type
city
County
Rock County
Land area (Census Gazetteer 2024)
34.64 sq mi
Census GEOID
5537825
Census ACS, FHFA, and FRED figures are labeled with the year present in existing CSVs. Subject to change / confirm locally.
NewUSAHouses.com communities
Closest verified new-home communities near Janesville
Availability and pricing are controlled by the builder and may change; confirm with the builder.
Kettle Park West ↗
D.R. Horton · Stoughton, Wisconsin · ~20.6 mi · from $403,990
Autumn Ridge ↗
Tim O'Brien Homes · Oregon, Wisconsin · ~25.3 mi
Terravessa ↗
Tim O'Brien Homes · Fitchburg, Wisconsin · ~29.5 mi
Shady Grove ↗
Tim O'Brien Homes · Cottage Grove, Wisconsin · ~29.8 mi
Kennedy Hills ↗
Tim O'Brien Homes · Cottage Grove, Wisconsin · ~29.8 mi
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Common questions
Janesville FAQ
What are houses worth in Janesville, WI?
The Census Bureau's American Community Survey puts the median value of houses in Janesville at $209,700. Rock County's current median listing price runs $379,900, up about 3.4% over the past year.
How much do houses cost in Janesville, WI?
For owner-occupied houses in Janesville, Census ACS data shows a median value of $209,700. Active listing prices in Rock County may differ — see the market snapshot above.
What types of houses are in Janesville, WI?
Janesville houses include resale single-family homes, condos, mobile homes, and small multi-unit buildings, plus new construction in surrounding Rock County communities where builders are active. The housing-stock section below uses Census ACS structure counts when available for this city.
What is the population of Janesville, WI?
The U.S. Census Bureau's American Community Survey (2023 5-year estimate) puts Janesville's population at approximately 65,813.
What's the median rent in Janesville, WI?
The Census ACS estimates median gross rent in Janesville at approximately $1,037 per month.
What is the median household income in Janesville, WI?
Census ACS data puts the median household income in Janesville at approximately $71,664.
Is the Janesville housing market growing?
Rock County's FHFA house price index shows a 5.1% annual change in 2025.
Is Janesville, WI affordable relative to income?
Census ACS data puts Janesville's median home value at about 2.9 times the median household income, with median gross rent equal to roughly 17% of that income annually. This is a general benchmark, not a personal pre-qualification -- your own income, debt, and down payment determine what you can actually afford.
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