Kalispell, MT Radon Levels

Q: What is the average radon level in Kalispell, MT?

Based on 2 user-submitted tests, the average radon level is 7.50 pCi/L.

Q: What EPA Radon Zone is Kalispell in?

Kalispell is in Flathead County, EPA Zone 1.

Q: How much does radon mitigation cost in Kalispell?

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

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

Kalispell, MT Radon Facts

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

County Flathead County, MT

Zip Code 59901

Avg. User Level 7.50 pCi/L

User Tests 2

Gateway to Glacier National Park in Flathead County, Kalispell's homes have recorded an average radon level of 7.5 pCi/L, significantly exceeding the EPA action threshold. Based on limited testing from 2 submissions in the 59901 area, readings have ranged from 6.0 to 9.0 pCi/L. The Flathead Valley's glacial deposits over sedimentary bedrock create geological conditions highly conducive to radon production and accumulation.

7.50

pCi/L average

Above EPA Action Level

Based on 2 user-submitted radon tests for homes in Kalispell, MT. The EPA recommends taking action at or above 4.0 pCi/L.

4.0 EPA

10+

Kalispell, MT Radon Mitigation

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Kalispell, MT Radon Levels

User-submitted radon test readings from homes in the Kalispell area.

Radon Level	City	Home Age	Foundation
6 pCi/L	Kalispell, MT	0-20 Years	No Basement/All Crawl Space
9 pCi/L	Kalispell, MT	51-99 Years	Full Basement

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Radon FAQ for Kalispell, MT

What is the average radon level in Kalispell, MT?

Based on 2 user-submitted tests, the average radon level in Kalispell is 7.50 pCi/L. This exceeds the EPA's recommended action level of 4.0 pCi/L, and radon testing is recommended for all homes in the area.

What EPA Radon Zone is Kalispell in?

Kalispell and the 59901 zip code are in Flathead 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 Kalispell?

Radon mitigation in Kalispell 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 Kalispell?

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

Kalispell, MT Radon Levels

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

Kalispell, MT Radon Facts

Kalispell, MT Radon Mitigation

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Kalispell, MT Radon Levels

Radon FAQ for Kalispell, MT

Most Active Radon Markets in Montana

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