Jefferson, TX Radon Mitigation and Testing

Q: What EPA Radon Zone is Jefferson in?

Jefferson is in Marion County, EPA Zone 3.

Q: How much does radon mitigation cost in Jefferson?

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

Marion County

EPA Zone 3

Located in East Texas's Marion County within the Longview Metro area, Jefferson sits on sandy soils and sedimentary formations typical of the region. While specific radon data for zip code 75657 is currently unavailable, the area's geological conditions warrant testing consideration for homeowners. Many properties feature pier-and-beam foundations or slab construction common to East Texas residential building practices.

Jefferson, TX Radon Mitigation

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

Jefferson, TX Radon Testing

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

Jefferson Radon Facts

Key details about the radon risk profile for Jefferson and the 75657 zip code area.

EPA Radon Zone

Zone 3 — Low Risk

County

Marion County, TX

Zip Code

75657

Predicted Screening Level

< 2.0 pCi/L (Zone 3)

Jefferson and the 75657 zip code are located in Marion 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 Jefferson, TX

What EPA Radon Zone is Jefferson in?

Jefferson and the 75657 zip code are in Marion 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 Jefferson?

Radon mitigation in Jefferson 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 Jefferson?

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