La Crosse, WI Radon Levels
Check local La Crosse radon levels and find certified testing and mitigation professionals to keep your home safe
La Crosse, WI Radon Facts
Wisconsin's La Crosse spans multiple zip codes in La Crosse County along the Mississippi River, where the region's sandstone bluffs and river valley location create variable radon conditions. Testing data for the 54601 area is currently limited despite the city's position in EPA Zone 2. The La Crosse Metro's mix of historic homes, university housing, and newer construction means radon levels can vary significantly across different neighborhoods and foundation types.
La Crosse County average: 2.50 pCi/L, based on 2 user-submitted tests across 2 cities in the county. No homeowner readings have been submitted for La Crosse itself yet, so this county figure is the closest available benchmark. The EPA recommends taking action at or above 4.0 pCi/L.
La Crosse, WI Radon Mitigation
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Radon Readings Near La Crosse, WI
No homeowner tests have been submitted for La Crosse yet, so the closest user-submitted readings from neighboring communities are shown below. Radon varies by home — testing is the only way to know your level.
| Radon Level | City | Distance | Home Age | Foundation | Submitted |
|---|---|---|---|---|---|
| 3 pCi/L | Onalaska, WI | 5.1 mi | 21-50 Years | Partial Basement | Jan 2022 |
| 2 pCi/L | Holmen, WI | 10.6 mi | 0-20 Years | Full Basement | Sep 2023 |
| 5 pCi/L | Westby, WI | 21.1 mi | 0-20 Years | Full Basement | Jan 2020 |
| 5 pCi/L | Sparta, WI | 22.7 mi | 21-50 Years | Full Basement | Apr 2017 |
| 5 pCi/L | Viroqua, WI | 25.7 mi | 100+ Years | Full Basement | Apr 2021 |
Readings are drawn from the nearest cities with submitted data. Have a result for La Crosse? Submit your reading to help your neighbors.
La Crosse County Radon Profile
The soils and bedrock of La Crosse County place it in EPA Radon Zone 2, a moderate-risk classification with predicted indoor averages of 2 to 4 pCi/L. Homeowner-submitted tests from 2 cities in La Crosse County average 2.50 pCi/L across 2 tests — below the EPA's 4 pCi/L action level, though radon varies sharply from home to home. Since radon is the second leading cause of lung cancer nationally, the EPA urges every household in La Crosse County to test, as levels can differ between neighboring homes.
Radon FAQ for La Crosse, WI
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Radon Levels Near La Crosse, WI
User-submitted radon levels from the cities closest to La Crosse with recorded test data. Explore nearby communities to compare local readings.