Clark Fork, ID Radon Mitigation and Testing

Q: What EPA Radon Zone is Clark Fork in?

Clark Fork is in Bonner County, EPA Zone 1.

Q: How much does radon mitigation cost in Clark Fork?

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

Bonner County

EPA Zone 1

Clark Fork, ID resides in Bonner 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. Testing is recommended for all homes in the 83811 zip code area.

Clark Fork, ID Radon Mitigation

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

Clark Fork, ID Radon Testing

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

Clark Fork Radon Facts

Key details about the radon risk profile for Clark Fork and the 83811 zip code area.

EPA Radon Zone

Zone 1 — High Risk

County

Bonner County, ID

Zip Code

83811

Predicted Screening Level

> 4.0 pCi/L (Zone 1)

Clark Fork and the 83811 zip code are located in Bonner 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 Clark Fork, ID

What EPA Radon Zone is Clark Fork in?

Clark Fork and the 83811 zip code are in Bonner 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 Clark Fork?

Radon mitigation in Clark Fork 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 Clark Fork?

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 Idaho

Cities with the most user-submitted radon test data in the state.

City	Avg User Radon Level	Submissions
Idaho Falls	7.29 pCi/L	7
Hailey	7.83 pCi/L	6
Post Falls	9.00 pCi/L	5
Coeur D Alene	9.00 pCi/L	4
Moscow	7.75 pCi/L	4
Victor	6.67 pCi/L	3
Driggs	16.00 pCi/L	2
Hayden	8.50 pCi/L	2
Pocatello	8.50 pCi/L	2
Eagle	6.00 pCi/L	1
Boise	No submissions	0
Nampa	No submissions	0
Sandpoint	No submissions	0