Butterfield, MN Radon Mitigation and Testing

Q: What EPA Radon Zone is Butterfield in?

Butterfield is in Watonwan County, EPA Zone 1.

Q: How much does radon mitigation cost in Butterfield?

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

Watonwan County

EPA Zone 1

This small Watonwan County community in south-central Minnesota sits on glacial till deposits that can create variable radon conditions. Rural properties in the 56120 zip code area feature a mix of older farmsteads and modern homes, each presenting different foundation characteristics. Since local testing data is limited, homeowners should prioritize professional radon testing to understand their individual property's risk profile.

Butterfield, MN Radon Mitigation

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

Butterfield, MN Radon Testing

Finding qualified radon testing professionals is the first step toward protecting your home.

Butterfield Radon Facts

Key details about the radon risk profile for Butterfield and the 56120 zip code area.

EPA Radon Zone

Zone 1 — High Risk

County

Watonwan County, MN

Zip Code

56120

Predicted Screening Level

> 4.0 pCi/L (Zone 1)

Butterfield and the 56120 zip code are located in Watonwan County, which has an EPA assigned Radon Zone of 1. A radon zone of 1 predicts an average indoor radon screening level greater than 4 pCi/L. The EPA recommends testing every home regardless of zone classification.

Radon FAQ for Butterfield, MN

What EPA Radon Zone is Butterfield in?

Butterfield and the 56120 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.

How much does radon mitigation cost in Butterfield?

Radon mitigation in Butterfield 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 Butterfield?

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.

Most Active Radon Markets in Minnesota

Cities with the most user-submitted radon test data in the state.

City	Avg User Radon Level	Submissions
Savage	5.00 pCi/L	3
Faribault	10.00 pCi/L	2
Shakopee	6.50 pCi/L	2
Minneapolis	5.00 pCi/L	2
Lakeville	6.00 pCi/L	1
Delano	5.00 pCi/L	1
Montgomery	5.00 pCi/L	1
Rosemount	No submissions	0