Oakhurst, CA Radon Levels

Q: What EPA Radon Zone is Oakhurst in?

Oakhurst is in Madera County, EPA Zone 2.

Q: How much does radon mitigation cost in Oakhurst?

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

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

Oakhurst, CA Radon Facts

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

County Madera County, CA

Zip Code 93644

Situated in Madera County in the Sierra Nevada foothills within the Fresno Metro area, Oakhurst (93644) serves as a gateway to Yosemite National Park with limited radon testing data available. The region's granitic bedrock and mountain geology can occasionally produce elevated radon levels, particularly in homes with basement foundations or those built into hillsides. Mountain residents should consider testing, as elevation and geological conditions can create unique radon patterns different from the Central Valley below.

Oakhurst, 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 Oakhurst, CA

What EPA Radon Zone is Oakhurst in?

Oakhurst and the 93644 zip code are in Madera 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 Oakhurst?

Radon mitigation in Oakhurst 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 Oakhurst?

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