Huntsville, TX Radon Mitigation and Testing

Q: What EPA Radon Zone is Huntsville in?

Huntsville is in Walker County, EPA Zone 3.

Q: How much does radon mitigation cost in Huntsville?

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

Walker County

EPA Zone 3

Located in Walker County north of Houston, Huntsville's East Texas Piney Woods setting typically produces lower radon levels due to sandy soils and sedimentary geology. However, testing data for zip codes 77320 and 77340 remains limited, making individual property testing advisable for homeowners. Even in areas with generally lower radon potential, specific site conditions can occasionally produce elevated readings.

Huntsville, TX Radon Mitigation

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

Huntsville, TX Radon Testing

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

Huntsville Radon Facts

Key details about the radon risk profile for Huntsville and the 77320 zip code area.

EPA Radon Zone

Zone 3 — Low Risk

County

Walker County, TX

Zip Code

77320

Predicted Screening Level

< 2.0 pCi/L (Zone 3)

Huntsville and the 77320 zip code are located in Walker 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 Huntsville, TX

What EPA Radon Zone is Huntsville in?

Huntsville and the 77320 zip code are in Walker 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 Huntsville?

Radon mitigation in Huntsville 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 Huntsville?

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

City	Avg User Radon Level	Submissions
Lubbock	12.67 pCi/L	9
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