Welcome, MN Radon Levels

Q: What EPA Radon Zone is Welcome in?

Welcome is in Martin County, EPA Zone 1.

Q: How much does radon mitigation cost in Welcome?

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

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

Welcome, MN Radon Facts

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

County Martin County, MN

Zip Code 56181

Prairie community Welcome in Martin County lies in southern Minnesota's agricultural region, where glacial till deposits over limestone bedrock create conditions favorable for radon accumulation in homes. Located in EPA Zone 1 with high radon potential, this area experiences geological conditions similar to other parts of southern Minnesota known for elevated radon levels. Testing data for zip code 56181 remains limited, making professional radon testing essential for homeowners, particularly those with basement foundations typical of Minnesota construction practices.

8.00

pCi/L area average

Above EPA Action Level

Martin County average: 8.00 pCi/L, based on 1 user-submitted test across 1 city in the county. No homeowner readings have been submitted for Welcome 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+

Welcome, 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 Welcome?

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Radon Readings Near Welcome, MN

No homeowner tests have been submitted for Welcome 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	7.2 mi	8.00 pCi/L	1
Blue Earth	24.9 mi	7.00 pCi/L	1
Sleepy Eye	42.8 mi	12.00 pCi/L	1
Wells	43.1 mi	6.00 pCi/L	1
Mankato	44.7 mi	14.00 pCi/L	1
Nicollet	46.1 mi	2.00 pCi/L	1

Martin County Radon Profile

Martin 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. Homeowner-submitted tests from 1 city in Martin County average 8.00 pCi/L across 1 test — above the EPA's 4 pCi/L action level, reinforcing the need for testing across the county. Since radon is the second leading cause of lung cancer nationally, the EPA urges every household in Martin County to test, as levels can differ between neighboring homes.

Radon FAQ for Welcome, MN

What EPA Radon Zone is Welcome in?

Welcome and the 56181 zip code are in Martin 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 Welcome?

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

Radon mitigation in Welcome 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 Welcome?

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.