Irwin, ID Radon Mitigation and Testing

Q: What EPA Radon Zone is Irwin in?

Irwin is in Bonneville County, EPA Zone 2.

Q: How much does radon mitigation cost in Irwin?

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

Bonneville County

EPA Zone 2

Situated in Bonneville County within the Idaho Falls Metro area, Irwin sits on Snake River Plain basalts where EPA Zone 2 indicates moderate radon potential in southeastern Idaho's volcanic terrain. Current testing data for this 83428 community is limited, making radon testing important for homeowners in the area. The region's fractured basalt geology and mountain valley setting can create pathways for radon gas movement into residential foundations.

Irwin, ID Radon Mitigation

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

Irwin, ID Radon Testing

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

Irwin Radon Facts

Key details about the radon risk profile for Irwin and the 83428 zip code area.

EPA Radon Zone

Zone 2 — Moderate Risk

County

Bonneville County, ID

Zip Code

83428

Predicted Screening Level

2–4 pCi/L (Zone 2)

Irwin and the 83428 zip code are located in Bonneville 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 Irwin, ID

What EPA Radon Zone is Irwin in?

Irwin and the 83428 zip code are in Bonneville 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 Irwin?

Radon mitigation in Irwin 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 Irwin?

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