Sherwood, TN Radon Levels

Q: What EPA Radon Zone is Sherwood in?

Sherwood is in Franklin County, EPA Zone 3.

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

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

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

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

Sherwood, TN Radon Facts

EPA Radon Zone Zone 3 — Low Risk < 2.0 pCi/L (Zone 3)

County Franklin County, TN

Zip Code 37376

Found in Franklin County in south-central Tennessee, this small community sits within EPA Zone 3, generally indicating lower radon potential. However, the area's limestone bedrock and karst topography can create localized conditions where radon levels exceed typical regional patterns. With limited testing data for zip code 37376, homeowners should still consider radon testing as a precautionary measure.

4.00

pCi/L area average

Above EPA Action Level

Franklin County average: 4.00 pCi/L, based on 1 user-submitted test across 1 city in the county. No homeowner readings have been submitted for Sherwood 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+

Sherwood, 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 Sherwood, TN

No homeowner tests have been submitted for Sherwood 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
Winchester	14.2 mi	4.00 pCi/L	1
Signal Mountain	34.3 mi	7.00 pCi/L	1
Chattanooga	37.0 mi	5.00 pCi/L	2
Dunlap	38.3 mi	14.00 pCi/L	1
Shelbyville	42.8 mi	10.50 pCi/L	2
Mcminnville	45.0 mi	6.50 pCi/L	2

Franklin County Radon Profile

Franklin County is classified as EPA Radon Zone 3, the lowest predicted-risk tier, with modeled indoor screening averages below 2 pCi/L. Homeowner-submitted tests from 1 city in Franklin County average 4.00 pCi/L across 1 test — above the EPA's 4 pCi/L action level, reinforcing the need for testing across the county. 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 Franklin County.

Radon FAQ for Sherwood, TN

What EPA Radon Zone is Sherwood in?

Sherwood and the 37376 zip code are in Franklin County, which has an EPA assigned Radon Zone of 3. A zone of 3 predicts an average indoor radon screening level less than 2 pCi/L.

Why are radon readings shown from areas near Sherwood?

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

Radon mitigation in Sherwood 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 Sherwood?

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.