Brazoria, TX Radon Mitigation and Testing

Q: What EPA Radon Zone is Brazoria in?

Brazoria is in Brazoria County, EPA Zone 3.

Q: How much does radon mitigation cost in Brazoria?

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

Brazoria County

EPA Zone 3

Located in coastal Brazoria County southwest of Houston, Brazoria sits on Gulf Coast sediments that typically result in lower radon concentrations. While testing data for the 77422 zip code remains unavailable, homeowners should still consider baseline radon testing, particularly important given the area's mix of slab-on-grade and pier foundation construction.

Brazoria, TX Radon Mitigation

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

Brazoria, TX Radon Testing

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

Brazoria Radon Facts

Key details about the radon risk profile for Brazoria and the 77422 zip code area.

EPA Radon Zone

Zone 3 — Low Risk

County

Brazoria County, TX

Zip Code

77422

Predicted Screening Level

< 2.0 pCi/L (Zone 3)

Brazoria and the 77422 zip code are located in Brazoria 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 Brazoria, TX

What EPA Radon Zone is Brazoria in?

Brazoria and the 77422 zip code are in Brazoria 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 Brazoria?

Radon mitigation in Brazoria 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 Brazoria?

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