Santa Barbara, CA Radon Mitigation and Testing

Q: What is the average radon level in Santa Barbara, CA?

Based on 1 user-submitted tests, the average radon level is 3.00 pCi/L.

Q: What EPA Radon Zone is Santa Barbara in?

Santa Barbara is in Santa Barbara County, EPA Zone 1.

Q: How much does radon mitigation cost in Santa Barbara?

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

Avg: 3.00 pCi/L

Santa Barbara County

EPA Zone 1

1 user test

Santa Barbara is located in Santa Barbara County, California. With 1 user-submitted readings averaging 3.00 pCi/L, levels are currently below the EPA's recommended action level of 4.0 pCi/L. However, we recommend all homes be tested regardless of your neighbor's results.

3.00

pCi/L average

Below EPA Action Level

Based on 1 user-submitted radon test for homes in Santa Barbara, CA. The EPA recommends taking action at or above 4.0 pCi/L.

4.0 EPA

10+

Santa Barbara, CA Radon Mitigation

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

Santa Barbara, CA Radon Testing

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

Santa Barbara, California Radon Levels

User-submitted radon test readings from homes in the Santa Barbara area.

Radon Level	City	Home Age	Foundation	Submitted
3 pCi/L	Santa Barbara, CA	51-99 Years	No Basement/All Crawl Space	Apr 2023

Have a radon test result for Santa Barbara? Submit your reading to help other homeowners.

Santa Barbara Radon Facts

Key details about the radon risk profile for Santa Barbara and the 93101 zip code area.

EPA Radon Zone

Zone 1 — High Risk

County

Santa Barbara County, CA

Zip Code

93101

Predicted Screening Level

> 4.0 pCi/L (Zone 1)

Avg. User Submitted Level

3.00 pCi/L

User Tests Submitted

Santa Barbara and the 93101 zip code are located in Santa Barbara County, which has an EPA assigned Radon Zone of 1. A radon zone of 1 predicts an average indoor radon screening level greater than 4 pCi/L. The EPA recommends testing every home regardless of zone classification.

Radon FAQ for Santa Barbara, CA

What is the average radon level in Santa Barbara, CA?

Based on 1 user-submitted test, the average radon level in Santa Barbara is 3.00 pCi/L. This is below the EPA's recommended action level of 4.0 pCi/L. However, we recommend all homes be tested regardless of your neighbor's results.

What EPA Radon Zone is Santa Barbara in?

Santa Barbara and the 93101 zip code are in Santa Barbara County, which has an EPA assigned Radon Zone of 1. A zone of 1 predicts an average indoor radon screening level greater than 4 pCi/L.

How much does radon mitigation cost in Santa Barbara?

Radon mitigation in Santa Barbara 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 Santa Barbara?

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