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Monterey Park, CA Radon Levels

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


Monterey Park, CA Radon Facts

EPA Radon Zone Zone 2 — Moderate Risk 2–4 pCi/L (Zone 2)
County Los Angeles County, CA
Zip Code 91754

This Los Angeles Metro community in Los Angeles County (zip code 91754) sits on alluvial deposits and sedimentary formations that typically produce lower radon levels than found in other U.S. regions. Current testing data for Monterey Park is limited, though California's generally moderate radon environment suggests most homes fall within acceptable ranges. Homeowners should still consider testing, especially in older homes with basement spaces or those built into hillsides.

Monterey Park, 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 Monterey Park, CA

What EPA Radon Zone is Monterey Park in?
Monterey Park and the 91754 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 Monterey Park?
Radon mitigation in Monterey Park 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 Monterey Park?
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