Santa Elena, TX Radon Mitigation and Testing

Q: What EPA Radon Zone is Santa Elena in?

Santa Elena is in Starr County, EPA Zone 3.

Q: How much does radon mitigation cost in Santa Elena?

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

Starr County

EPA Zone 3

Rural Starr County along the Rio Grande Valley, Santa Elena sits on alluvial soils and sedimentary formations typical of South Texas border regions. Though specific radon testing data for zip code 78591 remains limited, the area's clay-rich soils and generally flat terrain typically result in lower radon concentrations. Homeowners in this community should still consider testing, particularly those in newer homes with tighter construction or properties with enclosed foundation spaces.

Santa Elena, TX Radon Mitigation

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

Santa Elena, TX Radon Testing

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Santa Elena Radon Facts

Key details about the radon risk profile for Santa Elena and the 78591 zip code area.

EPA Radon Zone

Zone 3 — Low Risk

County

Starr County, TX

Zip Code

78591

Predicted Screening Level

< 2.0 pCi/L (Zone 3)

Santa Elena and the 78591 zip code are located in Starr 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 Santa Elena, TX

What EPA Radon Zone is Santa Elena in?

Santa Elena and the 78591 zip code are in Starr 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 Santa Elena?

Radon mitigation in Santa Elena 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 Santa Elena?

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