Saint Xavier, MT Radon Mitigation and Testing

Q: What EPA Radon Zone is Saint Xavier in?

Saint Xavier is in Big Horn County, EPA Zone 1.

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

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

Big Horn County

EPA Zone 1

Saint Xavier in Big Horn County sits within the Crow Reservation in south-central Montana, where sedimentary geology creates EPA Zone 1 radon conditions. With limited testing data available for the 59075 area, homeowners should prioritize professional radon assessment to understand their property's specific risk profile. Montana's diverse geological formations can produce surprising variations in radon levels even within small communities.

Saint Xavier, MT Radon Mitigation

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

Saint Xavier, MT Radon Testing

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

Saint Xavier Radon Facts

Key details about the radon risk profile for Saint Xavier and the 59075 zip code area.

EPA Radon Zone

Zone 1 — High Risk

County

Big Horn County, MT

Zip Code

59075

Predicted Screening Level

> 4.0 pCi/L (Zone 1)

Saint Xavier and the 59075 zip code are located in Big Horn 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 Xavier, MT

What EPA Radon Zone is Saint Xavier in?

Saint Xavier and the 59075 zip code are in Big Horn 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 Xavier?

Radon mitigation in Saint Xavier 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 Xavier?

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