Shelby, MT Radon Levels
Check local Shelby radon levels and find certified testing and mitigation professionals to keep your home safe
Shelby, MT Radon Facts
EPA Radon Zone
Zone 1 — High Risk
> 4.0 pCi/L (Zone 1)
County
Toole County, MT
Zip Code
59474
Located in Toole County near the Canadian border, Shelby sits in Montana's northern prairie region where glacial deposits over sedimentary bedrock can influence radon levels. Testing data for this community in zip code 59474 remains limited, making individual home testing essential for residents. Local housing typically features ranch-style construction and varied foundation types that may affect radon accumulation patterns.
Shelby, MT 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 Shelby?
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1-800-299-3578
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Radon FAQ for Shelby, MT
What EPA Radon Zone is Shelby in?
Shelby and the 59474 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 Shelby?
Radon mitigation in Shelby 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 Shelby?
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.
| 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 |