Cosby, TN Radon Levels

Q: What EPA Radon Zone is Cosby in?

Cosby is in Cocke County, EPA Zone 2.

Q: Why are radon readings shown from areas near Cosby?

No homeowner radon tests have been submitted for Cosby yet, so readings from the closest cities and the Cocke County average are used as the best available indicator of local conditions. The EPA recommends testing every individual home.

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.

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

Cosby, TN Radon Facts

EPA Radon Zone Zone 2 — Moderate Risk 2–4 pCi/L (Zone 2)

County Cocke County, TN

Zip Code 37722

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.

8.42

pCi/L area average

Above EPA Action Level

Nearby homeowner readings average 8.42 pCi/L, based on 12 tests from 10 nearby cities. No readings have been submitted for Cosby yet, so the closest recorded data is shown as a benchmark. The EPA recommends taking action at or above 4.0 pCi/L.

4.0 EPA

10+

Cosby, TN Radon Mitigation

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

Need Radon Mitigation or Testing in Cosby?

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Radon Readings Near Cosby, TN

No homeowner tests have been submitted for Cosby yet. The closest cities with user-submitted radon data are shown below — explore them to gauge local conditions. Radon varies by home, so testing is the only way to know your level.

City	Distance	Avg User Level	Readings
White Pine	17.4 mi	4.00 pCi/L	1
Jefferson City	24.4 mi	5.00 pCi/L	1
Morristown	26.3 mi	7.00 pCi/L	2
Russellville	29.2 mi	9.00 pCi/L	1
Walland	34.4 mi	20.00 pCi/L	1
Knoxville	43.8 mi	4.00 pCi/L	1
Maryville	43.8 mi	10.50 pCi/L	2
Limestone	44.0 mi	7.00 pCi/L	1

Cocke County Radon Profile

The soils and bedrock of Cocke County place it in EPA Radon Zone 2, a moderate-risk classification with predicted indoor averages of 2 to 4 pCi/L. Few homeowner tests have been logged inside Cocke County so far, which is why this page draws on the nearest recorded readings to illustrate regional radon levels. Since radon is the second leading cause of lung cancer nationally, the EPA urges every household in Cocke County to test, as levels can differ between neighboring homes.

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.

Why are radon readings shown from areas near Cosby?

No homeowner radon tests have been submitted for Cosby yet. Because radon is driven by regional soil and bedrock geology, readings from the closest cities—and the Cocke County average—are the best available indicator of local conditions until Cosby homeowners submit their own results. The EPA still recommends testing every individual home, since levels can vary significantly from house to house.

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.