Cobalt, ID Radon Levels

Q: What EPA Radon Zone is Cobalt in?

Cobalt is in Lemhi County, EPA Zone 1.

Q: How much does radon mitigation cost in Cobalt?

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

Check local Cobalt radon levels and find certified testing and mitigation professionals to keep your home safe

Cobalt, ID Radon Facts

EPA Radon Zone Zone 1 — High Risk > 4.0 pCi/L (Zone 1)

County Lemhi County, ID

Zip Code 83229

High in Idaho's Lemhi County mountains, Cobalt's remote location and granitic geology typically produce lower radon levels than many Idaho communities. However, testing data for zip code 83229 remains sparse due to the area's small population. Mountain communities can still experience elevated radon in certain geological conditions, making individual home testing the most reliable way to assess exposure risk.

Cobalt, ID Radon Mitigation

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

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Radon FAQ for Cobalt, ID

What EPA Radon Zone is Cobalt in?

Cobalt and the 83229 zip code are in Lemhi 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 Cobalt?

Radon mitigation in Cobalt 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 Cobalt?

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 in Idaho with the most user-submitted radon test data, ranked by number of submissions.

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