Huntsville, AR Radon Mitigation and Testing

Q: What EPA Radon Zone is Huntsville in?

Huntsville is in Madison County, EPA Zone 3.

Q: How much does radon mitigation cost in Huntsville?

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

Madison County

EPA Zone 3

Situated in the Arkansas Ozarks within Madison County, Huntsville's mountainous terrain and limestone bedrock create moderate radon potential despite limited available testing data. The 72740 zip code area's mix of older rural homes and newer construction means radon risk can vary considerably by property type and foundation design. Given the region's geological characteristics, homeowners should prioritize radon testing regardless of home age.

Huntsville, AR Radon Mitigation

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

Huntsville, AR Radon Testing

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

Huntsville Radon Facts

Key details about the radon risk profile for Huntsville and the 72740 zip code area.

EPA Radon Zone

Zone 3 — Low Risk

County

Madison County, AR

Zip Code

72740

Predicted Screening Level

< 2.0 pCi/L (Zone 3)

Huntsville and the 72740 zip code are located in Madison 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 Huntsville, AR

What EPA Radon Zone is Huntsville in?

Huntsville and the 72740 zip code are in Madison 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 Huntsville?

Radon mitigation in Huntsville 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 Huntsville?

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 Arkansas

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

City	Avg User Radon Level	Submissions
Hot Springs Village	11.60 pCi/L	5
Bentonville	4.00 pCi/L	4
Bella Vista	13.67 pCi/L	3
Little Rock	7.00 pCi/L	1