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Wildomar, CA Radon Levels

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


Wildomar, CA Radon Facts

EPA Radon Zone Zone 2 — Moderate Risk 2–4 pCi/L (Zone 2)
County Riverside County, CA
Zip Code 92595

Part of Riverside County in Southern California's Inland Empire, Wildomar's 92595 area typically experiences lower radon levels due to the region's granitic bedrock and Mediterranean climate. However, testing data for this growing suburban community remains limited. While California generally shows lower radon risk, individual homes can still experience elevated levels, particularly those built on specific soil types or with unique ventilation characteristics.

Wildomar, 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 Wildomar, CA

What EPA Radon Zone is Wildomar in?
Wildomar and the 92595 zip code are in Riverside 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 Wildomar?
Radon mitigation in Wildomar 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 Wildomar?
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.

CityAvg User Radon LevelSubmissions
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