Erwin, TN Radon Levels

Q: What EPA Radon Zone is Erwin in?

Erwin is in Unicoi County, EPA Zone 2.

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

No homeowner radon tests have been submitted for Erwin yet, so readings from the closest cities and the Unicoi 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 Erwin?

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

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

Erwin, TN Radon Facts

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

County Unicoi County, TN

Zip Code 37650

Situated in mountainous Unicoi County within the Johnson City metropolitan area, Erwin lies in an Appalachian valley with underlying sedimentary rock formations that can influence radon levels. The town's housing includes both historic railroad-era homes and newer mountain construction, many built with basements due to the sloping terrain. Since radon testing data is currently unavailable for zip code 37650, residents in this geologically active region should prioritize testing to assess their individual exposure risk.

7.72

pCi/L area average

Above EPA Action Level

Nearby homeowner readings average 7.72 pCi/L, based on 18 tests from 10 nearby cities. No readings have been submitted for Erwin 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+

Erwin, 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 Erwin, TN

No homeowner tests have been submitted for Erwin 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
Telford	10.2 mi	12.00 pCi/L	1
Jonesborough	11.9 mi	7.00 pCi/L	2
Limestone	14.3 mi	7.00 pCi/L	1
Johnson City	14.8 mi	4.20 pCi/L	5
Elizabethton	18.8 mi	7.33 pCi/L	3
Bluff City	25.7 mi	5.00 pCi/L	1
Blountville	27.9 mi	20.00 pCi/L	1
Kingsport	28.1 mi	5.00 pCi/L	1

Unicoi County Radon Profile

Unicoi County is mapped as EPA Radon Zone 2, where the local geology is predicted to produce moderate indoor screening levels between 2 and 4 pCi/L. User-submitted readings are still sparse within Unicoi County itself, so the nearby measurements shown on this page provide the closest real-world picture of local radon conditions. Radon is the second leading cause of lung cancer in the United States, and a short-term test is the only way to confirm a specific home's level in Unicoi County.

Radon FAQ for Erwin, TN

What EPA Radon Zone is Erwin in?

Erwin and the 37650 zip code are in Unicoi 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 Erwin?

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

Radon mitigation in Erwin 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 Erwin?

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.