East Troy, WI Radon Levels

Q: What EPA Radon Zone is East Troy in?

East Troy is in Walworth County, EPA Zone 1.

Q: How much does radon mitigation cost in East Troy?

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

Check local East Troy radon levels and find certified testing and mitigation professionals to keep your home safe

East Troy, WI Radon Facts

EPA Radon Zone Zone 1 — High Risk > 4.0 pCi/L (Zone 1)

County Walworth County, WI

Zip Code 53120

Located in Walworth County within the Racine Metro area, East Troy sits in Wisconsin's EPA Zone 1 where glacial till deposits over dolomite bedrock create conditions that can support elevated radon levels. The community features housing that ranges from historic rural properties to newer suburban developments, typically with full basements common throughout southeastern Wisconsin. Since specific testing data for zip code 53120 is currently limited, homeowners should prioritize professional radon testing to understand their individual risk levels.

6.71

pCi/L area average

Above EPA Action Level

Walworth County average: 6.71 pCi/L, based on 7 user-submitted tests across 6 cities in the county. No homeowner readings have been submitted for East Troy 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+

East Troy, 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 East Troy, WI

No homeowner tests have been submitted for East Troy 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
Elkhorn	9.9 mi	5.00 pCi/L	1
Waterford	11.1 mi	9.00 pCi/L	2
Burlington	11.7 mi	7.00 pCi/L	1
Waukesha	14.8 mi	5.50 pCi/L	2
Lake Geneva	15.1 mi	5.00 pCi/L	1
Delavan	16.7 mi	6.00 pCi/L	1
Williams Bay	17.1 mi	12.00 pCi/L	1
Genoa City	19.0 mi	10.00 pCi/L	1

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 East Troy, WI

What EPA Radon Zone is East Troy in?

East Troy and the 53120 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.

Why are radon readings shown from areas near East Troy?

No homeowner radon tests have been submitted for East Troy yet. Because radon is driven by regional soil and bedrock geology, readings from the closest cities—and the Walworth County average—are the best available indicator of local conditions until East Troy 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 East Troy?

Radon mitigation in East Troy 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 East Troy?

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.