Nampa, ID Radon Mitigation and Testing

Q: What EPA Radon Zone is Nampa in?

Nampa is in Canyon County, EPA Zone 2.

Q: How much does radon mitigation cost in Nampa?

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

Canyon County

EPA Zone 2

Located in Canyon County within the Boise Metro area, Nampa sits in the Treasure Valley where sedimentary soils and underlying basalt formations create variable radon conditions. While comprehensive testing data is currently limited for zip codes 83651, 83686, and 83687, the area's geological characteristics suggest homeowners should conduct radon testing to establish baseline readings for their properties.

Nampa, ID Radon Mitigation

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

Nampa, ID Radon Testing

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

Nampa Radon Facts

Key details about the radon risk profile for Nampa and the 83651 zip code area.

EPA Radon Zone

Zone 2 — Moderate Risk

County

Canyon County, ID

Zip Code

83651

Predicted Screening Level

2–4 pCi/L (Zone 2)

Nampa and the 83651 zip code are located in Canyon 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 Nampa, ID

What EPA Radon Zone is Nampa in?

Nampa and the 83651 zip code are in Canyon 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 Nampa?

Radon mitigation in Nampa 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 Nampa?

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