Ridgecrest, CA Radon Mitigation and Testing

Q: What EPA Radon Zone is Ridgecrest in?

Ridgecrest is in Kern County, EPA Zone 2.

Q: How much does radon mitigation cost in Ridgecrest?

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

Kern County

EPA Zone 2

Positioned in Kern County within California's Mojave Desert region, Ridgecrest sits on alluvial deposits and volcanic formations that typically produce lower radon levels. Testing data for zip code 93555 remains limited, though the area's desert geology and prevalence of slab-on-grade construction generally correlate with reduced radon risk. Individual testing provides the most reliable assessment for specific properties in this high-desert environment.

Ridgecrest, CA Radon Mitigation

Professional radon mitigation is the most effective way to permanently lower radon levels and protect your household.

Ridgecrest, CA Radon Testing

Finding qualified radon testing professionals is the first step toward protecting your home.

Ridgecrest Radon Facts

Key details about the radon risk profile for Ridgecrest and the 93555 zip code area.

EPA Radon Zone

Zone 2 — Moderate Risk

County

Kern County, CA

Zip Code

93555

Predicted Screening Level

2–4 pCi/L (Zone 2)

Ridgecrest and the 93555 zip code are located in Kern County, which has an EPA assigned Radon Zone of 2. A radon zone of 2 predicts an average indoor radon screening level between 2 and 4 pCi/L. The EPA recommends testing every home regardless of zone classification.

Radon FAQ for Ridgecrest, CA

What EPA Radon Zone is Ridgecrest in?

Ridgecrest and the 93555 zip code are in Kern 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 Ridgecrest?

Radon mitigation in Ridgecrest 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 Ridgecrest?

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 with the most user-submitted radon test data in the state.

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
Woodland Hills	7.67 pCi/L	3
South Lake Tahoe	6.33 pCi/L	3
Palos Verdes Peninsula	6.00 pCi/L	3
Bishop	5.67 pCi/L	3
Sacramento	4.33 pCi/L	3
Oakland	3.33 pCi/L	3
Fresno	10.00 pCi/L	2
Davis	8.00 pCi/L	2
Palo Alto	6.50 pCi/L	2
Studio City	6.50 pCi/L	2
Menlo Park	5.00 pCi/L	2
Truckee	5.00 pCi/L	2
Walnut Creek	4.00 pCi/L	2
San Diego	3.50 pCi/L	2
San Francisco	3.50 pCi/L	2
Belmont	20.00 pCi/L	1