Austin, TX Radon Levels

Q: What is the average radon level in Austin, TX?

Based on 6 user-submitted tests, the average radon level is 5.20 pCi/L.

Q: What EPA Radon Zone is Austin in?

Austin is in Travis County, EPA Zone 3.

Q: How much does radon mitigation cost in Austin?

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

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

Austin, TX Radon Facts

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

County Travis County, TX

Zip Code 78701

Avg. User Level 5.20 pCi/L

User Tests 6

Spanning Travis County and Hays County in central Texas, Austin shows an average radon level of 6.14 pCi/L, which exceeds the EPA action threshold of 4.0 pCi/L. Based on 7 test results across multiple zip codes in the Austin Metro area, readings have ranged from 2.0 to 12.0 pCi/L, demonstrating significant variation. The region's limestone bedrock and diverse housing stock, from downtown high-rises to suburban ranch homes, create conditions where professional radon testing and mitigation may be necessary.

5.20

pCi/L average

Above EPA Action Level

Based on 6 user-submitted radon tests for homes in Austin, TX. The EPA recommends taking action at or above 4.0 pCi/L.

4.0 EPA

10+

Austin, TX Radon Mitigation

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Austin, TX Radon Levels

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

Radon Level	City	Home Age	Foundation
5 pCi/L	Austin, TX	21-50 Years	No Basement/All Slab
9 pCi/L	Austin, TX	21-50 Years	No Basement/All Slab
2 pCi/L	Austin, TX	21-50 Years	No Basement/All Slab
6 pCi/L	Austin, TX	21-50 Years	No Basement/All Slab
5 pCi/L	Austin, TX	51-99 Years	—

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

Radon FAQ for Austin, TX

What is the average radon level in Austin, TX?

Based on 6 user-submitted tests, the average radon level in Austin is 5.20 pCi/L. This exceeds the EPA's recommended action level of 4.0 pCi/L, and radon testing is recommended for all homes in the area.

What EPA Radon Zone is Austin in?

Austin and the 78701 zip code are in Travis 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 Austin?

Radon mitigation in Austin 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 Austin?

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 Texas

Cities in Texas with the most user-submitted radon test data, ranked by number of submissions.

City	Avg User Radon Level	Submissions
Lubbock	12.70 pCi/L	10
San Antonio	6.57 pCi/L	7
Austin	6.14 pCi/L	7
Dallas	8.00 pCi/L	5
Abilene	4.50 pCi/L	2
Houston	3.50 pCi/L	2
Plano	6.00 pCi/L	1
Frisco	3.00 pCi/L	1
Nacogdoches	No submissions	0

Austin, TX Radon Levels

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

Austin, TX Radon Facts

Austin, TX Radon Mitigation

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Austin, TX Radon Levels

Radon FAQ for Austin, TX

Most Active Radon Markets in Texas

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