Smithville, TX Radon Levels

Q: What EPA Radon Zone is Smithville in?

Smithville is in Bastrop County, EPA Zone 3.

Q: How much does radon mitigation cost in Smithville?

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

Check local Smithville radon levels and find certified testing and mitigation professionals to keep your home safe

Smithville, TX Radon Facts

EPA Radon Zone Zone 3 — Low Risk < 2.0 pCi/L (Zone 3)

County Bastrop County, TX

Zip Code 78957

Found in Bastrop County within the Austin Metro area, Smithville sits on Texas coastal plain formations that typically produce lower radon concentrations but can vary significantly by location. Limited testing data for zip code 78957 makes baseline home testing important for establishing individual risk levels. The community's housing stock, including both historic properties and newer construction common in central Texas, generally features slab-on-grade foundations that can still accumulate radon under certain conditions.

Smithville, TX Radon Mitigation

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

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Radon FAQ for Smithville, TX

What EPA Radon Zone is Smithville in?

Smithville and the 78957 zip code are in Bastrop 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 Smithville?

Radon mitigation in Smithville 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 Smithville?

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 in Texas with the most user-submitted radon test data, ranked by number of submissions.

City	Avg User Radon Level	Submissions
Lubbock	12.70 pCi/L	10
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