Huntington Beach, CA Radon Levels
Check local Huntington Beach radon levels and find certified testing and mitigation professionals to keep your home safe
Huntington Beach, CA Radon Facts
EPA Radon Zone
Zone 3 — Low Risk
< 2.0 pCi/L (Zone 3)
County
Orange County, CA
Zip Code
92646
This coastal Orange County community spans multiple zip codes (92646-92649) along Southern California's Pacific shoreline, where marine terraces and alluvial deposits create generally low radon potential. However, testing data for the area is currently limited, and California's diverse geology can produce unexpected radon readings even in coastal locations. The city's predominantly slab-on-grade construction typical of warm-climate development may reduce but not eliminate radon concerns.
Huntington Beach, CA Radon Mitigation
Professional radon mitigation is the most effective way to permanently lower radon levels and protect your household.
Need Radon Mitigation or Testing in Huntington Beach?
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Radon FAQ for Huntington Beach, CA
What EPA Radon Zone is Huntington Beach in?
Huntington Beach and the 92646 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 Huntington Beach?
Radon mitigation in Huntington 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 Huntington 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 |