Sevierville, TN Radon Levels

Q: What EPA Radon Zone is Sevierville in?

Sevierville is in Sevier County, EPA Zone 2.

Q: How much does radon mitigation cost in Sevierville?

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

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

Sevierville, TN Radon Facts

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

County Sevier County, TN

Zip Code 37862

Sevierville in Sevier County (zip code 37862) sits in the foothills of the Great Smoky Mountains, where complex geological formations create variable radon potential throughout the region. This popular tourist destination features a mix of older mountain homes and newer developments, many with basement or crawl space foundations. Given the area's diverse geology and limited local radon testing data, homeowners should conduct independent testing to assess their specific radon exposure risk.

8.25

pCi/L area average

Above EPA Action Level

Nearby homeowner readings average 8.25 pCi/L, based on 12 tests from 10 nearby cities. No readings have been submitted for Sevierville 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+

Sevierville, 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 Sevierville, TN

No homeowner tests have been submitted for Sevierville 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
Jefferson City	18.1 mi	5.00 pCi/L	1
Walland	19.0 mi	20.00 pCi/L	1
White Pine	19.3 mi	4.00 pCi/L	1
Morristown	27.3 mi	7.00 pCi/L	2
Knoxville	27.7 mi	4.00 pCi/L	1
Maryville	28.5 mi	10.50 pCi/L	2
Maynardville	32.1 mi	5.00 pCi/L	1
Russellville	32.9 mi	9.00 pCi/L	1

Sevier County Radon Profile

EPA mapping assigns Sevier County to Radon Zone 2, indicating moderate predicted indoor screening levels in the 2 to 4 pCi/L range based on regional geology. Direct test data for Sevier County remains limited, so the closest neighboring readings are used here to represent the radon conditions homeowners are likely to encounter. As the second leading cause of lung cancer in the U.S., radon warrants testing in every Sevier County home regardless of zone or a neighbor's results.

Radon FAQ for Sevierville, TN

What EPA Radon Zone is Sevierville in?

Sevierville and the 37862 zip code are in Sevier 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 Sevierville?

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

Radon mitigation in Sevierville 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 Sevierville?

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.