Smithville, TN Radon Levels

Q: What EPA Radon Zone is Smithville in?

Smithville is in De Kalb County, EPA Zone Unknown.

Q: How much does radon mitigation cost in Smithville?

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

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

Smithville, TN Radon Facts

EPA Radon Zone Unknown Unknown

County De Kalb County, TN

Zip Code 37166

Positioned in De Kalb County within the Nashville Metro area, Smithville sits on Tennessee's characteristic limestone bedrock formations that can produce variable radon levels across the region. Testing data for zip code 37166 is currently limited, making individual home testing essential for residents. The area's mix of rural properties and small-town development, many featuring basement or crawl space foundations typical of middle Tennessee, sits in geological conditions that warrant regular radon monitoring.

8.50

pCi/L area average

Above EPA Action Level

Nearby homeowner readings average 8.50 pCi/L, based on 12 tests from 10 nearby cities. No readings have been submitted for Smithville 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+

Smithville, 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 Smithville, TN

No homeowner tests have been submitted for Smithville 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
Mcminnville	17.1 mi	6.50 pCi/L	2
Buffalo Valley	17.7 mi	18.00 pCi/L	1
Sparta	20.5 mi	12.00 pCi/L	1
Gordonsville	20.7 mi	18.00 pCi/L	1
Cookeville	25.6 mi	4.00 pCi/L	1
Lebanon	31.2 mi	5.00 pCi/L	1
Smyrna	39.2 mi	7.00 pCi/L	1
Mount Juliet	42.9 mi	2.00 pCi/L	1

De Kalb County Radon Profile

De Kalb County has not been assigned a definitive EPA radon zone, so the agency recommends that every home be tested regardless of predicted risk. User-submitted readings are still sparse within De Kalb 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 De Kalb County.

Radon FAQ for Smithville, TN

What EPA Radon Zone is Smithville in?

Smithville and the 37166 zip code are in De Kalb County, which has an EPA assigned Radon Zone of Unknown. A zone of Unknown does not have sufficient data for classification.

Why are radon readings shown from areas near Smithville?

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

Radon mitigation in Smithville 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 Smithville?

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.