Cosby, TN Radon Mitigation and Testing

Q: What EPA Radon Zone is Cosby in?

Cosby is in Cocke County, EPA Zone 2.

Q: How much does radon mitigation cost in Cosby?

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

Cocke County

EPA Zone 2

Positioned in Cocke County near the Great Smoky Mountains, Cosby sits where Appalachian metamorphic rocks create complex radon patterns. Limited testing data for the 37722 zip code area makes professional radon testing essential for local homeowners. The region's mountainous terrain and varied bedrock geology can produce significantly different radon levels between neighboring properties.

Cosby, TN Radon Mitigation

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

Cosby, TN Radon Testing

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

Cosby Radon Facts

Key details about the radon risk profile for Cosby and the 37722 zip code area.

EPA Radon Zone

Zone 2 — Moderate Risk

County

Cocke County, TN

Zip Code

37722

Predicted Screening Level

2–4 pCi/L (Zone 2)

Cosby and the 37722 zip code are located in Cocke County, which has an EPA assigned Radon Zone of 2. A radon zone of 2 predicts an average indoor radon screening level between 2 and 4 pCi/L. The EPA recommends testing every home regardless of zone classification.

Radon FAQ for Cosby, TN

What EPA Radon Zone is Cosby in?

Cosby and the 37722 zip code are in Cocke County, which has an EPA assigned Radon Zone of 2. A zone of 2 predicts an average indoor radon screening level between 2 and 4 pCi/L.

How much does radon mitigation cost in Cosby?

Radon mitigation in Cosby 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 Cosby?

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 Tennessee

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

City	Avg User Radon Level	Submissions
Elizabethton	7.33 pCi/L	3
Cleveland	5.33 pCi/L	3
Johnson City	4.33 pCi/L	3
Maryville	10.50 pCi/L	2
Columbia	8.50 pCi/L	2
Bristol	6.50 pCi/L	2
Chattanooga	5.00 pCi/L	2
Clarksville	20.00 pCi/L	1
Kingsport	5.00 pCi/L	1
Knoxville	4.00 pCi/L	1
Greeneville	No submissions	0
Murfreesboro	No submissions	0