Lewisville, MN Radon Levels

Q: What EPA Radon Zone is Lewisville in?

Lewisville is in Watonwan County, EPA Zone 1.

Q: How much does radon mitigation cost in Lewisville?

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

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

Lewisville, MN Radon Facts

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

County Watonwan County, MN

Zip Code 56060

Positioned in Watonwan County in south-central Minnesota, Lewisville falls within EPA Zone 1 where elevated radon levels are anticipated across much of the state's glacial terrain. The region's prairie soils over sedimentary bedrock provide pathways for radon gas accumulation in residential basements and lower levels. Since comprehensive testing data for zip code 56060 is not currently available, homeowners should conduct professional radon tests to assess their individual risk levels.

8.17

pCi/L area average

Above EPA Action Level

Nearby homeowner readings average 8.17 pCi/L, based on 6 tests from 6 nearby cities. No readings have been submitted for Lewisville yet, so the closest recorded data is shown as a benchmark. The EPA recommends taking action at or above 4.0 pCi/L.

4.0 EPA

10+

Lewisville, MN Radon Mitigation

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

Need Radon Mitigation or Testing in Lewisville?

100% Free, No-Obligation Quotes
Matches You with State-Licensed Watonwan County Pros

1-800-299-3578 507-369-2661 (local) Toll-free · Mon–Fri 8am–6pm ET

Radon Readings Near Lewisville, MN

No homeowner tests have been submitted for Lewisville 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
Fairmont	19.6 mi	8.00 pCi/L	1
Blue Earth	25.7 mi	7.00 pCi/L	1
Mankato	26.4 mi	14.00 pCi/L	1
Nicollet	27.1 mi	2.00 pCi/L	1
Sleepy Eye	29.0 mi	12.00 pCi/L	1
Wells	36.8 mi	6.00 pCi/L	1

Watonwan County Radon Profile

Watonwan County falls in EPA Radon Zone 1, meaning the local uranium-bearing geology is predicted to drive average indoor radon screening levels above the EPA's 4 pCi/L action threshold. Few homeowner tests have been logged inside Watonwan County so far, which is why this page draws on the nearest recorded readings to illustrate regional radon levels. Since radon is the second leading cause of lung cancer nationally, the EPA urges every household in Watonwan County to test, as levels can differ between neighboring homes.

Radon FAQ for Lewisville, MN

What EPA Radon Zone is Lewisville in?

Lewisville and the 56060 zip code are in Watonwan 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 Lewisville?

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

Radon mitigation in Lewisville 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 Lewisville?

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.