Property Intelligence Report — Janesville, Wisconsin

Federal data on flood, climate, radon, air quality and more. Free preview for any address in Janesville. $49 full report.

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Risk Scorecard

Radon Zone
Zone 1 — High
Predicted average indoor radon screening level >= 4 pCi/L. EPA strongly recommends radon testing and mitigation.
Earthquake Risk
Minimal
0 events in past 10 years
Current Conditions
61°F
Partly Cloudy then Patchy Fog

Quick Stats

163,817
Population
$193,000
Median Home Value
$70,630
Median Income

Janesville at a Glance

Janesville is a solid mid-sized community with genuine staying power—our population of nearly 164,000 reflects a stable, established city rather than a boom-and-bust market. The median home value around $193,000 is accessible for many buyers, and with nearly 70% of properties owner-occupied, you're looking at a neighborhood with real investment and commitment from residents. The median household income of $70,630 suggests a working and middle-class community that tends to be financially grounded.

One thing you'll want to factor into your home inspection: Janesville sits in EPA radon Zone 1, which is the highest radon risk category in the country. This isn't uncommon in Wisconsin, but it means radon testing and mitigation systems are practically standard here, not optional. It's a known issue that locals and buyers simply plan for. On the bright side, earthquake risk is genuinely minimal—we've had virtually zero seismic activity over the past decade.

The community skews toward practical homeowners rather than highly credentialed professionals; about 23.5% hold bachelor's degrees or higher. That said, this reflects a region with strong manufacturing and skilled trades heritage. If you're looking for an unpretentious, genuinely affordable market in the Midwest with real community roots, Janesville delivers.

Analysis based on federal data from FEMA, EPA, USGS, Census Bureau and NOAA. Generated September 2026.

Current Conditions

Tonight: 61°F — Partly Cloudy then Patchy Fog. Wind 0 to 5 mph NE.

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