Mercedes, TX Radon Mitigation and Testing

Q: What EPA Radon Zone is Mercedes in?

Mercedes is in Hidalgo County, EPA Zone 3.

Q: How much does radon mitigation cost in Mercedes?

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

Hidalgo County

EPA Zone 3

Positioned in Hidalgo County near the Rio Grande Valley within the McAllen Metro, Mercedes sits atop river delta sediments and clay soils that generally minimize radon accumulation. Testing data for the 78570 zip code is currently limited, but South Texas geology typically produces very low radon levels. The EPA Zone 3 classification reflects this low regional potential, though individual testing remains the best way to verify safety.

Mercedes, TX Radon Mitigation

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

Mercedes, TX Radon Testing

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

Mercedes Radon Facts

Key details about the radon risk profile for Mercedes and the 78570 zip code area.

EPA Radon Zone

Zone 3 — Low Risk

County

Hidalgo County, TX

Zip Code

78570

Predicted Screening Level

< 2.0 pCi/L (Zone 3)

Mercedes and the 78570 zip code are located in Hidalgo 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 Mercedes, TX

What EPA Radon Zone is Mercedes in?

Mercedes and the 78570 zip code are in Hidalgo 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 Mercedes?

Radon mitigation in Mercedes 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 Mercedes?

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