Bigfork, MT Radon Mitigation and Testing

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

Based on 1 user-submitted tests, the average radon level is 12.00 pCi/L.

Q: What EPA Radon Zone is Bigfork in?

Bigfork is in Lake County, EPA Zone 1.

Q: How much does radon mitigation cost in Bigfork?

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

Avg: 12.00 pCi/L

Lake County

EPA Zone 1

1 user test

Situated on Flathead Lake in Lake County, Bigfork has recorded a radon level of 12.0 pCi/L in recent testing. This reading significantly exceeds the EPA action level, reflecting the area's location atop glacial deposits over Belt Supergroup metamorphic rocks. Homeowners in zip code 59911 should prioritize professional radon testing and mitigation, especially given the region's tendency for elevated indoor air concentrations.

12.00

pCi/L average

Above EPA Action Level

Based on 1 user-submitted radon test for homes in Bigfork, MT. The EPA recommends taking action at or above 4.0 pCi/L.

4.0 EPA

10+

Bigfork, MT Radon Mitigation

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

Bigfork, MT Radon Testing

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

Bigfork, Montana Radon Levels

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

Radon Level	City	Home Age	Foundation	Submitted
12 pCi/L	Bigfork, MT	0-20 Years	Partial Basement	Dec 2023

Have a radon test result for Bigfork? Submit your reading to help other homeowners.

Bigfork Radon Facts

Key details about the radon risk profile for Bigfork and the 59911 zip code area.

EPA Radon Zone

Zone 1 — High Risk

County

Lake County, MT

Zip Code

59911

Predicted Screening Level

> 4.0 pCi/L (Zone 1)

Avg. User Submitted Level

12.00 pCi/L

User Tests Submitted

Bigfork and the 59911 zip code are located in Lake 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 Bigfork, MT

What is the average radon level in Bigfork, MT?

Based on 1 user-submitted test, the average radon level in Bigfork is 12.00 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 Bigfork in?

Bigfork and the 59911 zip code are in Lake 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 Bigfork?

Radon mitigation in Bigfork 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 Bigfork?

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