Roan Mountain, TN Radon Levels

Q: What EPA Radon Zone is Roan Mountain in?

Roan Mountain is in Carter County, EPA Zone 2.

Q: How much does radon mitigation cost in Roan Mountain?

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

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

Roan Mountain, TN Radon Facts

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

County Carter County, TN

Zip Code 37687

Perched in Carter County near the North Carolina border within the Johnson City Metro area, Roan Mountain sits in the Appalachian Mountains where crystalline bedrock meets sedimentary formations. Testing data for radon levels is currently limited in the 37687 zip code, making professional home assessment important given the area's complex geology.

7.33

pCi/L area average

Above EPA Action Level

Carter County average: 7.33 pCi/L, based on 3 user-submitted tests across 1 city in the county. No homeowner readings have been submitted for Roan Mountain itself yet, so this county figure is the closest available benchmark. The EPA recommends taking action at or above 4.0 pCi/L.

4.0 EPA

10+

Roan Mountain, TN Radon Mitigation

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

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Radon Readings Near Roan Mountain, TN

No homeowner tests have been submitted for Roan Mountain 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
Elizabethton	13.4 mi	7.33 pCi/L	3
Johnson City	20.9 mi	4.20 pCi/L	5
Bluff City	22.5 mi	5.00 pCi/L	1
Jonesborough	24.2 mi	7.00 pCi/L	2
Mountain City	24.9 mi	20.00 pCi/L	1
Telford	25.8 mi	12.00 pCi/L	1
Bristol	27.6 mi	6.50 pCi/L	2
Blountville	29.4 mi	20.00 pCi/L	1

Carter County Radon Profile

EPA mapping assigns Carter County to Radon Zone 2, indicating moderate predicted indoor screening levels in the 2 to 4 pCi/L range based on regional geology. Homeowner-submitted tests from 1 city in Carter County average 7.33 pCi/L across 3 tests — above the EPA's 4 pCi/L action level, reinforcing the need for testing across the county. As the second leading cause of lung cancer in the U.S., radon warrants testing in every Carter County home regardless of zone or a neighbor's results.

Radon FAQ for Roan Mountain, TN

What EPA Radon Zone is Roan Mountain in?

Roan Mountain and the 37687 zip code are in Carter 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 Roan Mountain?

No homeowner radon tests have been submitted for Roan Mountain yet. Because radon is driven by regional soil and bedrock geology, readings from the closest cities—and the Carter County average—are the best available indicator of local conditions until Roan Mountain 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 Roan Mountain?

Radon mitigation in Roan Mountain 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 Roan Mountain?

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.