Pope Valley, CA Radon Levels

Q: What EPA Radon Zone is Pope Valley in?

Pope Valley is in Napa County, EPA Zone 3.

Q: How much does radon mitigation cost in Pope Valley?

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

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

Pope Valley, CA Radon Facts

EPA Radon Zone Zone 3 — Low Risk < 2.0 pCi/L (Zone 3)

County Napa County, CA

Zip Code 94567

Remote valley community in Napa County nestled among California's Coast Range mountains, Pope Valley features rural properties with diverse geological conditions. Current radon testing data for the 94567 zip code is limited, making it difficult to establish patterns for this sparsely populated area. The valley's volcanic and sedimentary rock formations, combined with varying soil depths and home foundation types, suggest that individual testing is the most reliable way to determine radon levels for each property.

Pope Valley, 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 Pope Valley, CA

What EPA Radon Zone is Pope Valley in?

Pope Valley and the 94567 zip code are in Napa 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 Pope Valley?

Radon mitigation in Pope Valley 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 Pope Valley?

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