La Crosse, WI Radon Levels

Q: What EPA Radon Zone is La Crosse in?

La Crosse is in La Crosse County, EPA Zone 2.

Q: How much does radon mitigation cost in La Crosse?

Radon mitigation typically costs between $800 and $2,000. Most standard systems fall in the $1,000-$1,500 range.

Check local La Crosse radon levels and find certified testing and mitigation professionals to keep your home safe

La Crosse, WI Radon Facts

EPA Radon Zone Zone 2 — Moderate Risk 2–4 pCi/L (Zone 2)

County La Crosse County, WI

Zip Code 54601

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.

2.50

pCi/L area average

Below EPA Action Level

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.

4.0 EPA

10+

La Crosse, WI Radon Mitigation

Professional radon mitigation is the most effective way to permanently lower radon levels and protect your household.

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Radon Readings Near La Crosse, WI

No homeowner tests have been submitted for La Crosse yet. The closest cities with user-submitted radon data are shown below — explore them to gauge local conditions. Radon varies by home, so testing is the only way to know your level.

City	Distance	Avg User Level	Readings
Onalaska	5.1 mi	3.00 pCi/L	1
Holmen	10.6 mi	2.00 pCi/L	1
Westby	21.1 mi	5.00 pCi/L	1
Sparta	22.7 mi	5.00 pCi/L	2
Viroqua	25.7 mi	5.00 pCi/L	1
Black River Falls	38.2 mi	9.00 pCi/L	1
Kendall	43.2 mi	9.00 pCi/L	1

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

What EPA Radon Zone is La Crosse in?

La Crosse and the 54601 zip code are in La Crosse County, which has an EPA assigned Radon Zone of 2. A zone of 2 predicts an average indoor radon screening level between 2 and 4 pCi/L.

Why are radon readings shown from areas near La Crosse?

No homeowner radon tests have been submitted for La Crosse yet. Because radon is driven by regional soil and bedrock geology, readings from the closest cities—and the La Crosse County average—are the best available indicator of local conditions until La Crosse homeowners submit their own results. The EPA still recommends testing every individual home, since levels can vary significantly from house to house.

How much does radon mitigation cost in La Crosse?

Radon mitigation in La Crosse typically costs between $800 and $2,000. Most homes with standard basements can be mitigated with a sub-slab depressurization system in the $1,000–$1,500 range. Factors that can increase cost include complex foundations, crawl spaces, or very high radon levels.

Should I test for radon if I'm buying a home in La Crosse?

Yes. Radon testing should be part of every home purchase. A short-term radon test is typically included as part of the home inspection process and costs $150–$250. If elevated levels are found, you can negotiate mitigation as part of the sale.