Havre, MT Radon Levels

Q: What EPA Radon Zone is Havre in?

Havre is in Hill County, EPA Zone 1.

Q: How much does radon mitigation cost in Havre?

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

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

Havre, MT Radon Facts

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

County Hill County, MT

Zip Code 59501

Positioned in Hill County along Montana's Hi-Line near the Canadian border, Havre sits atop geological formations that can produce varying radon levels across the northern Great Plains region. The city's diverse housing stock, from historic railroad-era buildings to modern ranch-style homes, represents different construction methods and basement configurations that affect radon accumulation potential. Given the absence of comprehensive testing data for zip code 59501, homeowners should prioritize professional radon testing to establish accurate readings for their specific properties.

Havre, 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 Havre, MT

What EPA Radon Zone is Havre in?

Havre and the 59501 zip code are in Hill 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 Havre?

Radon mitigation in Havre 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 Havre?

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