Newport Beach, CA Radon Levels

Q: What EPA Radon Zone is Newport Beach in?

Newport Beach is in Orange County, EPA Zone 3.

Q: How much does radon mitigation cost in Newport Beach?

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

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

Newport Beach, CA Radon Facts

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

County Orange County, CA

Zip Code 92660

Upscale coastal community in Orange County within the Los Angeles metro area, Newport Beach benefits from marine sedimentary geology and ocean proximity that typically result in lower radon concentrations. Testing data for zip code 92660 remains limited, though California's coastal regions generally show reduced radon potential compared to inland areas. Even with favorable geological conditions, homeowners in this luxury market should still conduct radon testing to ensure comprehensive indoor air quality in high-value properties.

Newport Beach, CA 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 Newport Beach, CA

What EPA Radon Zone is Newport Beach in?

Newport Beach and the 92660 zip code are in Orange 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 Newport Beach?

Radon mitigation in Newport Beach 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 Newport Beach?

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 California

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

City	Avg User Radon Level	Submissions
Los Angeles	7.83 pCi/L	6
Mammoth Lakes	10.80 pCi/L	5
San Jose	4.20 pCi/L	5
Rancho Palos Verdes	8.00 pCi/L	4
Bishop	6.25 pCi/L	4
Oakland	5.00 pCi/L	4
Woodland Hills	7.67 pCi/L	3
South Lake Tahoe	6.33 pCi/L	3
Palos Verdes Peninsula	6.00 pCi/L	3
Sacramento	4.33 pCi/L	3