Smith River, CA Radon Mitigation and Testing

Q: What EPA Radon Zone is Smith River in?

Smith River is in Del Norte County, EPA Zone 3.

Q: How much does radon mitigation cost in Smith River?

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

Del Norte County

EPA Zone 3

Nestled in Del Norte County along California's rugged North Coast, Smith River sits on marine terraces and alluvial soils near the Pacific Ocean where coastal geology typically produces lower radon levels. The area's housing includes coastal ranch homes and newer construction, most built on concrete slabs or minimal crawl spaces suited to the mild coastal climate. Since radon testing data is currently unavailable for zip code 95567, homeowners may still want to test as a precaution, even in this generally low-risk EPA Zone 3 region.

Smith River, CA Radon Mitigation

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

Smith River, CA Radon Testing

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

Smith River Radon Facts

Key details about the radon risk profile for Smith River and the 95567 zip code area.

EPA Radon Zone

Zone 3 — Low Risk

County

Del Norte County, CA

Zip Code

95567

Predicted Screening Level

< 2.0 pCi/L (Zone 3)

Smith River and the 95567 zip code are located in Del Norte County, which has an EPA assigned Radon Zone of 3. A radon zone of 3 predicts an average indoor radon screening level less than 2 pCi/L. The EPA recommends testing every home regardless of zone classification.

Radon FAQ for Smith River, CA

What EPA Radon Zone is Smith River in?

Smith River and the 95567 zip code are in Del Norte 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 Smith River?

Radon mitigation in Smith River 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 Smith River?

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