Saint James, MN Radon Levels

Q: What EPA Radon Zone is Saint James in?

Saint James is in Watonwan County, EPA Zone 1.

Q: How much does radon mitigation cost in Saint James?

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

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

Saint James, MN Radon Facts

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

County Watonwan County, MN

Zip Code 56081

Centered in southern Minnesota's Watonwan County, Saint James lies within EPA Zone 1 indicating high radon potential for the 56081 zip code area. Current testing data remains insufficient to establish local radon patterns for this agricultural community. Minnesota's prairie geology, with glacial deposits over limestone bedrock, creates favorable conditions for radon gas production, making professional testing essential for homeowners throughout this farming region.

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 Saint James 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+

Saint James, 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 Saint James, MN

No homeowner tests have been submitted for Saint James 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
Sleepy Eye	21.0 mi	12.00 pCi/L	1
Fairmont	25.7 mi	8.00 pCi/L	1
Nicollet	29.2 mi	2.00 pCi/L	1
Mankato	31.8 mi	14.00 pCi/L	1
Blue Earth	35.7 mi	7.00 pCi/L	1
Wells	47.5 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 Saint James, MN

What EPA Radon Zone is Saint James in?

Saint James and the 56081 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 Saint James?

No homeowner radon tests have been submitted for Saint James 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 Saint James 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 Saint James?

Radon mitigation in Saint James 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 Saint James?

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.