Garryowen, MT Radon Mitigation and Testing

Q: What EPA Radon Zone is Garryowen in?

Garryowen is in Big Horn County, EPA Zone 1.

Q: How much does radon mitigation cost in Garryowen?

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

Positioned in Big Horn County near the historic Little Bighorn Battlefield, Garryowen sits in EPA Zone 1 where elevated radon potential exists across much of Montana. The area's sedimentary geology and rural housing stock, including older ranch homes with varying foundation types, can influence radon accumulation patterns. Testing data for zip code 59031 remains insufficient, making professional radon testing crucial for area residents.

Garryowen, MT Radon Mitigation

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

Garryowen, MT Radon Testing

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

Garryowen Radon Facts

Key details about the radon risk profile for Garryowen and the 59031 zip code area.

EPA Radon Zone

Zone 1 — High Risk

County

Big Horn County, MT

Zip Code

59031

Predicted Screening Level

> 4.0 pCi/L (Zone 1)

Garryowen and the 59031 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 Garryowen, MT

What EPA Radon Zone is Garryowen in?

Garryowen and the 59031 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 Garryowen?

Radon mitigation in Garryowen 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 Garryowen?

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