Lihue, HI Radon Levels

Q: What EPA Radon Zone is Lihue in?

Lihue is in Kauai County, EPA Zone 3.

Q: How much does radon mitigation cost in Lihue?

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

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

Lihue, HI Radon Facts

EPA Radon Zone Zone 3 — Low Risk < 2.0 pCi/L (Zone 3)

County Kauai County, HI

Zip Code 96766

As the county seat of Kauai County, Lihue benefits from Hawaii's volcanic geology that typically produces very low radon levels compared to mainland United States communities. Testing data for this 96766 area remains limited, though the EPA Zone 3 classification suggests minimal radon risk for most residents. However, individual homes built with imported materials or featuring specific ventilation patterns may still benefit from testing, particularly if constructed with mainland building products.

Lihue, HI 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 Lihue, HI

What EPA Radon Zone is Lihue in?

Lihue and the 96766 zip code are in Kauai County, which has an EPA assigned Radon Zone of 3. A zone of 3 predicts an average indoor radon screening level less than 2 pCi/L.

How much does radon mitigation cost in Lihue?

Radon mitigation in Lihue 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 Lihue?

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 Hawaii

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

City	Avg User Radon Level	Submissions
Honolulu	No submissions	0