Joplin, MT Radon Mitigation and Testing

Q: What EPA Radon Zone is Joplin in?

Joplin is in Liberty County, EPA Zone 1.

Q: How much does radon mitigation cost in Joplin?

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

Liberty County

EPA Zone 1

Remote Joplin sits in north-central Montana's Liberty County, where glacial deposits over sedimentary bedrock create variable radon conditions across the Hi-Line region. The sparse community features primarily ranch-style homes and older farmsteads with diverse foundation types. Given the limited population and testing data, residents in this rural area should consider radon testing to establish baseline levels for their properties.

Joplin, MT Radon Mitigation

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

Joplin, MT Radon Testing

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

Joplin Radon Facts

Key details about the radon risk profile for Joplin and the 59531 zip code area.

EPA Radon Zone

Zone 1 — High Risk

County

Liberty County, MT

Zip Code

59531

Predicted Screening Level

> 4.0 pCi/L (Zone 1)

Joplin and the 59531 zip code are located in Liberty 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 Joplin, MT

What EPA Radon Zone is Joplin in?

Joplin and the 59531 zip code are in Liberty 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 Joplin?

Radon mitigation in Joplin 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 Joplin?

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