Cottonwood, MN Radon Levels

Q: What EPA Radon Zone is Cottonwood in?

Cottonwood is in Lyon County, EPA Zone 1.

Q: How much does radon mitigation cost in Cottonwood?

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

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

Cottonwood, MN Radon Facts

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

County Lyon County, MN

Zip Code 56229

Located in southwestern Minnesota's Lyon County, Cottonwood sits in EPA Zone 1 where elevated radon readings are common throughout the upper Midwest. The region's glacial till deposits over Precambrian bedrock create geological conditions that readily facilitate radon gas migration into basements and lower living areas. Testing data for zip code 56229 remains limited, making individual home testing essential for residents to understand their specific radon exposure levels.

14.00

pCi/L area average

Above EPA Action Level

Nearby homeowner readings average 14.00 pCi/L, based on 1 test from 1 nearby city. No readings have been submitted for Cottonwood 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+

Cottonwood, MN 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 Cottonwood, MN

No homeowner tests have been submitted for Cottonwood 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
Willmar	48.7 mi	14.00 pCi/L	1

Lyon County Radon Profile

Because of its underlying geology, Lyon County is mapped as EPA Radon Zone 1 — the most elevated classification — where predicted indoor screening averages exceed 4 pCi/L. Direct test data for Lyon County remains limited, so the closest neighboring readings are used here to represent the radon conditions homeowners are likely to encounter. As the second leading cause of lung cancer in the U.S., radon warrants testing in every Lyon County home regardless of zone or a neighbor's results.

Radon FAQ for Cottonwood, MN

What EPA Radon Zone is Cottonwood in?

Cottonwood and the 56229 zip code are in Lyon 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 Cottonwood?

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

Radon mitigation in Cottonwood 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 Cottonwood?

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.