Thompsons Station, TN Radon Levels

Q: What EPA Radon Zone is Thompsons Station in?

Thompsons Station is in Williamson County, EPA Zone 1.

Q: How much does radon mitigation cost in Thompsons Station?

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

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

Thompsons Station, TN Radon Facts

EPA Radon Zone Zone 1 — High Risk > 4.0 pCi/L (Zone 1)

County Williamson County, TN

Zip Code 37179

Thompsons Station in Williamson County represents one of the Nashville Metro's fastest-growing suburban communities, built largely on limestone bedrock characteristic of Middle Tennessee. The area's predominantly newer housing developments feature both basement and slab-on-grade foundations, with construction dating primarily from the 1990s onward. While testing data for zip code 37179 remains limited, the underlying geology suggests homeowners should consider radon testing as part of routine home maintenance.

6.25

pCi/L area average

Above EPA Action Level

Williamson County average: 6.25 pCi/L, based on 4 user-submitted tests across 3 cities in the county. No homeowner readings have been submitted for Thompsons Station 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+

Thompsons Station, TN Radon Mitigation

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

Need Radon Mitigation or Testing in Thompsons Station?

100% Free, No-Obligation Quotes
Matches You with State-Licensed Williamson County Pros

1-800-299-3578 615-348-1964 (local) Toll-free · Mon–Fri 8am–6pm ET

Radon Readings Near Thompsons Station, TN

No homeowner tests have been submitted for Thompsons Station 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
College Grove	8.1 mi	3.00 pCi/L	1
Franklin	9.4 mi	5.00 pCi/L	1
Brentwood	14.7 mi	8.50 pCi/L	2
Columbia	15.7 mi	8.50 pCi/L	2
Pegram	22.4 mi	2.00 pCi/L	1
Nashville	24.1 mi	7.00 pCi/L	1
Smyrna	24.2 mi	7.00 pCi/L	1
Hermitage	30.6 mi	4.00 pCi/L	1

Williamson County Radon Profile

Because of its underlying geology, Williamson County is mapped as EPA Radon Zone 1 — the most elevated classification — where predicted indoor screening averages exceed 4 pCi/L. Homeowner-submitted tests from 3 cities in Williamson County average 6.25 pCi/L across 4 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 Williamson County home regardless of zone or a neighbor's results.

Radon FAQ for Thompsons Station, TN

What EPA Radon Zone is Thompsons Station in?

Thompsons Station and the 37179 zip code are in Williamson County, which has an EPA assigned Radon Zone of 1. A zone of 1 predicts an average indoor radon screening level greater than 4 pCi/L.

Why are radon readings shown from areas near Thompsons Station?

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

Radon mitigation in Thompsons Station 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 Thompsons Station?

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.