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Glenn, CA Radon Levels

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


Glenn, CA Radon Facts

EPA Radon Zone Zone 3 — Low Risk < 2.0 pCi/L (Zone 3)
County Glenn County, CA
Zip Code 95943

Positioned in California's Central Valley within Glenn County, this agricultural community sits on alluvial deposits that typically produce lower radon levels than the state's mountain and foothill regions. Current testing data for zip code 95943 remains limited, making individual property assessment valuable for local residents. The area's predominantly single-story homes and agricultural buildings generally show reduced radon accumulation compared to properties with basements or below-grade spaces.

Glenn, 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 Glenn, CA

What EPA Radon Zone is Glenn in?
Glenn and the 95943 zip code are in Glenn 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 Glenn?
Radon mitigation in Glenn 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 Glenn?
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