Madelia, MN Radon Levels

Q: What EPA Radon Zone is Madelia in?

Madelia is in Watonwan County, EPA Zone 1.

Q: How much does radon mitigation cost in Madelia?

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

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

Madelia, MN Radon Facts

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

County Watonwan County, MN

Zip Code 56062

Positioned in Watonwan County in south-central Minnesota, this 56062 community sits on glacial deposits that create the elevated radon potential characteristic throughout much of Minnesota. With limited testing data currently available, homeowners should prioritize individual radon testing in this EPA Zone 1 region. Given Minnesota's high radon risk across most counties, professional testing remains essential for ensuring home safety.

7.25

pCi/L area average

Above EPA Action Level

Nearby homeowner readings average 7.25 pCi/L, based on 8 tests from 8 nearby cities. No readings have been submitted for Madelia 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+

Madelia, 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 Madelia?

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Radon Readings Near Madelia, MN

No homeowner tests have been submitted for Madelia 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
Nicollet	19.0 mi	2.00 pCi/L	1
Mankato	20.4 mi	14.00 pCi/L	1
Sleepy Eye	22.4 mi	12.00 pCi/L	1
Fairmont	28.6 mi	8.00 pCi/L	1
Blue Earth	32.5 mi	7.00 pCi/L	1
Wells	39.9 mi	6.00 pCi/L	1
Stewart	46.8 mi	4.00 pCi/L	1
Montgomery	49.0 mi	5.00 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 Madelia, MN

What EPA Radon Zone is Madelia in?

Madelia and the 56062 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 Madelia?

No homeowner radon tests have been submitted for Madelia 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 Madelia 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 Madelia?

Radon mitigation in Madelia 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 Madelia?

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.