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Lake Geneva, WI Radon Levels

Check local Lake Geneva radon levels and find certified testing and mitigation professionals to keep your home safe


Lake Geneva, WI Radon Facts

EPA Radon Zone Zone 1 — High Risk > 4.0 pCi/L (Zone 1)
County Walworth County, WI
Zip Code 53147
Avg. User Level 5.00 pCi/L
User Tests 1

Nestled in Walworth County along Wisconsin's southern border, Lake Geneva shows a 5.0 pCi/L average that exceeds EPA recommended levels. The region's glacial moraine deposits over limestone bedrock contribute to elevated radon potential, particularly concerning for the area's mix of historic lakefront properties and seasonal homes with varied foundation types. Homeowners should test regularly, as radon levels can fluctuate seasonally in lake communities.

5.00
pCi/L average
Above EPA Action Level

Based on 1 user-submitted radon test for homes in Lake Geneva, WI. The EPA recommends taking action at or above 4.0 pCi/L.

0
4.0 EPA
10+

Lake Geneva, WI Radon Mitigation

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

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Lake Geneva, WI Radon Levels

User-submitted radon test readings from homes in the Lake Geneva area.

Radon LevelCityHome AgeFoundation
5 pCi/L Lake Geneva, WI 0-20 Years Full Basement

Have a radon test result for Lake Geneva? Submit your reading to help other homeowners.

Radon Readings Near Lake Geneva, WI

Compare radon levels in Lake Geneva with the closest nearby cities that have user-submitted test data.

CityDistanceAvg User LevelReadings
Williams Bay 4.5 mi 12.00 pCi/L 1
Fontana 6.5 mi 4.50 pCi/L 2
Genoa City 6.7 mi 10.00 pCi/L 1
Elkhorn 9.1 mi 5.00 pCi/L 1
Delavan 9.1 mi 6.00 pCi/L 1
Burlington 10.6 mi 7.00 pCi/L 1
Waterford 17.8 mi 9.00 pCi/L 2
Milton 28.5 mi 11.50 pCi/L 2

Walworth County Radon Profile

The bedrock and soils beneath Walworth County are classified by the EPA as Radon Zone 1, the highest-risk tier, with predicted average indoor screening levels above 4 pCi/L. Homeowner-submitted tests from 6 cities in Walworth County average 6.71 pCi/L across 7 tests — above the EPA's 4 pCi/L action level, reinforcing the need for testing across the county. Radon is the second leading cause of lung cancer in the United States, and a short-term test is the only way to confirm a specific home's level in Walworth County.

Radon FAQ for Lake Geneva, WI

What is the average radon level in Lake Geneva, WI?
Based on 1 user-submitted test, the average radon level in Lake Geneva is 5.00 pCi/L. This exceeds the EPA's recommended action level of 4.0 pCi/L, and radon testing is recommended for all homes in the area.
What EPA Radon Zone is Lake Geneva in?
Lake Geneva and the 53147 zip code are in Walworth County, which has an EPA assigned Radon Zone of 1. A zone of 1 predicts an average indoor radon screening level greater than 4 pCi/L.
How much does radon mitigation cost in Lake Geneva?
Radon mitigation in Lake Geneva 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 Lake Geneva?
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.