Saint Regis, MT Radon Mitigation and Testing

Q: What EPA Radon Zone is Saint Regis in?

Saint Regis is in Mineral County, EPA Zone 1.

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

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

Mineral County

EPA Zone 1

Nestled in western Montana's Mineral County near the Idaho border, Saint Regis sits within the Northern Rocky Mountain region's complex geological landscape of metamorphic and sedimentary rocks. The small community features a mix of older log construction and modern homes, many with partial basements or crawl spaces typical of mountain communities. Testing data is currently limited for this area, making professional radon assessment important for residents to understand their individual exposure levels.

Saint Regis, MT Radon Mitigation

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

Saint Regis, MT Radon Testing

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

Saint Regis Radon Facts

Key details about the radon risk profile for Saint Regis and the 59866 zip code area.

EPA Radon Zone

Zone 1 — High Risk

County

Mineral County, MT

Zip Code

59866

Predicted Screening Level

> 4.0 pCi/L (Zone 1)

Saint Regis and the 59866 zip code are located in Mineral 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 Saint Regis, MT

What EPA Radon Zone is Saint Regis in?

Saint Regis and the 59866 zip code are in Mineral 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 Saint Regis?

Radon mitigation in Saint Regis 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 Regis?

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 Montana

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

City	Avg User Radon Level	Submissions
Butte	10.20 pCi/L	10
Missoula	6.25 pCi/L	8
Florence	11.67 pCi/L	3
Bozeman	10.33 pCi/L	3
Helena	8.67 pCi/L	3
Stevensville	7.67 pCi/L	3
Sidney	7.33 pCi/L	3
Billings	5.33 pCi/L	3
Miles City	3.33 pCi/L	3
Kalispell	7.50 pCi/L	2
Great Falls	4.50 pCi/L	2
Whitefish	4.00 pCi/L	2
Ennis	9.00 pCi/L	1
Livingston	No submissions	0