Rio Hondo, TX Radon Mitigation and Testing

Q: What EPA Radon Zone is Rio Hondo in?

Rio Hondo is in Cameron County, EPA Zone 3.

Q: How much does radon mitigation cost in Rio Hondo?

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 Cameron County community in the Brownsville Metro area sits on Rio Grande delta sediments that typically produce very low radon concentrations. Testing data for zip code 78583 remains limited, but the area's EPA Zone 3 classification and coastal plain geology suggest minimal radon risk. While this region generally shows low radon potential, homeowners may still benefit from baseline testing to verify their specific conditions.

Rio Hondo, TX Radon Mitigation

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

Rio Hondo, TX Radon Testing

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

Rio Hondo Radon Facts

Key details about the radon risk profile for Rio Hondo and the 78583 zip code area.

EPA Radon Zone

Zone 3 — Low Risk

County

Cameron County, TX

Zip Code

78583

Predicted Screening Level

< 2.0 pCi/L (Zone 3)

Rio Hondo and the 78583 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 Rio Hondo, TX

What EPA Radon Zone is Rio Hondo in?

Rio Hondo and the 78583 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 Rio Hondo?

Radon mitigation in Rio Hondo 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 Rio Hondo?

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