Nixon, TX Radon Mitigation and Testing

Q: What EPA Radon Zone is Nixon in?

Nixon is in Gonzales County, EPA Zone 3.

Q: How much does radon mitigation cost in Nixon?

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

Gonzales County

EPA Zone 3

Located in south-central Texas's Gonzales County within the San Antonio metropolitan area, Nixon sits on coastal plain sediments that typically produce lower radon levels. The community features primarily single-story homes with slab-on-grade foundations typical of Texas construction. While testing data is currently limited for zip code 78140, homeowners should still consider radon testing as geological conditions can create localized variations in radon potential.

Nixon, TX Radon Mitigation

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

Nixon, TX Radon Testing

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

Nixon Radon Facts

Key details about the radon risk profile for Nixon and the 78140 zip code area.

EPA Radon Zone

Zone 3 — Low Risk

County

Gonzales County, TX

Zip Code

78140

Predicted Screening Level

< 2.0 pCi/L (Zone 3)

Nixon and the 78140 zip code are located in Gonzales 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 Nixon, TX

What EPA Radon Zone is Nixon in?

Nixon and the 78140 zip code are in Gonzales 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 Nixon?

Radon mitigation in Nixon 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 Nixon?

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