Boise, ID Radon Mitigation and Testing

Q: What EPA Radon Zone is Boise in?

Boise is in Ada County, EPA Zone 2.

Q: How much does radon mitigation cost in Boise?

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

Ada County

EPA Zone 2

Idaho's capital city in Ada County sits in the Treasure Valley on alluvial deposits over volcanic bedrock, creating moderate radon potential in EPA Zone 2. Testing data for the 83702 area remains limited, encouraging residents to conduct radon testing in this growing metropolitan community.

Boise, ID Radon Mitigation

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

Boise, ID Radon Testing

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

Boise Radon Facts

Key details about the radon risk profile for Boise and the 83702 zip code area.

EPA Radon Zone

Zone 2 — Moderate Risk

County

Ada County, ID

Zip Code

83702

Predicted Screening Level

2–4 pCi/L (Zone 2)

Boise and the 83702 zip code are located in Ada County, which has an EPA assigned Radon Zone of 2. A radon zone of 2 predicts an average indoor radon screening level between 2 and 4 pCi/L. The EPA recommends testing every home regardless of zone classification.

Radon FAQ for Boise, ID

What EPA Radon Zone is Boise in?

Boise and the 83702 zip code are in Ada County, which has an EPA assigned Radon Zone of 2. A zone of 2 predicts an average indoor radon screening level between 2 and 4 pCi/L.

How much does radon mitigation cost in Boise?

Radon mitigation in Boise 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 Boise?

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