Smithville, OK Radon Mitigation and Testing

Q: What EPA Radon Zone is Smithville in?

Smithville is in McCurtain 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.

McCurtain County

EPA Zone 3

Located in McCurtain County in southeastern Oklahoma, Smithville sits on sedimentary formations typical of the Ouachita Mountain foothills that generally produce lower radon levels. While testing data for zip code 74957 remains limited, the area's geological characteristics suggest moderate radon potential. The community's scattered residential properties, including both older construction and newer homes typical of rural Oklahoma, benefit from baseline radon testing despite the region's generally lower risk profile.

Smithville, OK Radon Mitigation

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

Smithville, OK Radon Testing

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

Smithville Radon Facts

Key details about the radon risk profile for Smithville and the 74957 zip code area.

EPA Radon Zone

Zone 3 — Low Risk

County

McCurtain County, OK

Zip Code

74957

Predicted Screening Level

< 2.0 pCi/L (Zone 3)

Smithville and the 74957 zip code are located in McCurtain 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 Smithville, OK

What EPA Radon Zone is Smithville in?

Smithville and the 74957 zip code are in McCurtain 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 Oklahoma

Cities with the most user-submitted radon test data in the state.

City	Avg User Radon Level	Submissions
Tulsa	8.14 pCi/L	7
Oklahoma City	7.00 pCi/L	1
Edmond	5.00 pCi/L	1