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Rancho Palos Verdes, CA Radon Levels

Check local Rancho Palos Verdes radon levels and find certified testing and mitigation professionals to keep your home safe


Rancho Palos Verdes, CA Radon Facts

EPA Radon Zone Zone 2 — Moderate Risk 2–4 pCi/L (Zone 2)
County Los Angeles County, CA
Zip Code 90275
Avg. User Level 8.00 pCi/L
User Tests 4

Perched on the scenic Palos Verdes Peninsula in Los Angeles County, this 90275 zip code community shows concerning radon levels with an average of 8.0 pCi/L, well above the EPA action threshold. The peninsula's unique geological formation and coastal bluff terrain contribute to these elevated readings within the Los Angeles Metro area. Given these significant radon levels, professional testing and potential mitigation are strongly recommended for all peninsula residents.

8.00
pCi/L average
Above EPA Action Level

Based on 4 user-submitted radon tests for homes in Rancho Palos Verdes, CA. The EPA recommends taking action at or above 4.0 pCi/L.

0
4.0 EPA
10+

Rancho Palos Verdes, CA Radon Mitigation

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

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Rancho Palos Verdes, CA Radon Levels

User-submitted radon test readings from homes in the Rancho Palos Verdes area.

Radon LevelCityHome AgeFoundation
17 pCi/L Rancho Palos Verdes, CA 21-50 Years Partial Basement
7 pCi/L Rancho Palos Verdes, CA 51-99 Years No Basement/All Slab
4 pCi/L Rancho Palos Verdes, CA 21-50 Years No Basement/All Crawl Space

Have a radon test result for Rancho Palos Verdes? Submit your reading to help other homeowners.

Radon FAQ for Rancho Palos Verdes, CA

What is the average radon level in Rancho Palos Verdes, CA?
Based on 4 user-submitted tests, the average radon level in Rancho Palos Verdes is 8.00 pCi/L. This exceeds the EPA's recommended action level of 4.0 pCi/L, and radon testing is recommended for all homes in the area.
What EPA Radon Zone is Rancho Palos Verdes in?
Rancho Palos Verdes and the 90275 zip code are in Los Angeles 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 Rancho Palos Verdes?
Radon mitigation in Rancho Palos Verdes 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 Rancho Palos Verdes?
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