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Sweet Grass, MT Radon Levels

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


Sweet Grass, MT Radon Facts

EPA Radon Zone Zone 1 — High Risk > 4.0 pCi/L (Zone 1)
County Toole County, MT
Zip Code 59484

Positioned along Montana's northern border in Toole County, Sweet Grass sits within the Great Plains region where sedimentary bedrock and glacial deposits create variable radon conditions. The area features scattered rural properties and border-related facilities, with housing types ranging from older farmsteads to mobile homes. Given limited testing data for zip code 59484, residents should conduct individual radon testing to assess exposure levels in this geologically diverse region.

Sweet Grass, MT Radon Mitigation

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

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Radon FAQ for Sweet Grass, MT

What EPA Radon Zone is Sweet Grass in?
Sweet Grass and the 59484 zip code are in Toole 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 Sweet Grass?
Radon mitigation in Sweet Grass 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 Sweet Grass?
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 in Montana with the most user-submitted radon test data, ranked by number of submissions.

CityAvg User Radon LevelSubmissions
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