Compton, CA Radon Levels

Q: What EPA Radon Zone is Compton in?

Compton is in Los Angeles County, EPA Zone 2.

Q: How much does radon mitigation cost in Compton?

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

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

Compton, CA Radon Facts

EPA Radon Zone Zone 2 — Moderate Risk 2–4 pCi/L (Zone 2)

County Los Angeles County, CA

Zip Code 90220

Part of Los Angeles County in the heart of the Los Angeles Metro area, Compton sits over sedimentary basin deposits that generally produce lower radon levels. The city's urban housing stock includes predominantly post-1940s construction with slab-on-grade foundations typical of Southern California. While radon testing data for Compton (90220) is currently limited, and the geological setting suggests lower risk, homeowners may still want to test given the variability possible in urban environments with mixed soil conditions.

Compton, 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 Compton, CA

What EPA Radon Zone is Compton in?

Compton and the 90220 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 Compton?

Radon mitigation in Compton 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 Compton?

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