South Padre Island, TX Radon Mitigation and Testing

Q: What EPA Radon Zone is South Padre Island in?

South Padre Island is in Cameron County, EPA Zone 3.

Q: How much does radon mitigation cost in South Padre Island?

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

Cameron County

EPA Zone 3

This barrier island resort community in Cameron County within the Brownsville Metro area (zip code 78597) sits on coastal sands that typically result in very low radon levels. The island's housing consists mainly of vacation condominiums and beach homes, many built on elevated foundations to meet flood requirements. While testing data remains limited and the coastal geology suggests minimal radon risk, property owners should still consider testing as individual buildings can vary.

South Padre Island, TX Radon Mitigation

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

South Padre Island, TX Radon Testing

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

South Padre Island Radon Facts

Key details about the radon risk profile for South Padre Island and the 78597 zip code area.

EPA Radon Zone

Zone 3 — Low Risk

County

Cameron County, TX

Zip Code

78597

Predicted Screening Level

< 2.0 pCi/L (Zone 3)

South Padre Island and the 78597 zip code are located in Cameron 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 South Padre Island, TX

What EPA Radon Zone is South Padre Island in?

South Padre Island and the 78597 zip code are in Cameron 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 South Padre Island?

Radon mitigation in South Padre Island 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 South Padre Island?

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