Smiths Grove, KY Radon Levels

Q: What EPA Radon Zone is Smiths Grove in?

Smiths Grove is in Warren County, EPA Zone 1.

Q: How much does radon mitigation cost in Smiths Grove?

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

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

Smiths Grove, KY Radon Facts

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

County Warren County, KY

Zip Code 42171

Positioned in Warren County within the Bowling Green Metro area, Smiths Grove sits on Mississippian limestone bedrock that contributes to elevated radon potential across Kentucky's south-central region. The community features a blend of historic homes and newer suburban development, typically with full basements or partial basements that can accumulate radon gas from the underlying limestone formations. Given the lack of recent testing data for zip code 42171, local residents should prioritize professional radon assessment in this EPA Zone 1 area.

15.80

pCi/L area average

Above EPA Action Level

Warren County average: 15.80 pCi/L, based on 5 user-submitted tests across 1 city in the county. No homeowner readings have been submitted for Smiths Grove 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+

Smiths Grove, KY 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 Smiths Grove, KY

No homeowner tests have been submitted for Smiths Grove 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
Bowling Green	14.3 mi	15.80 pCi/L	5
Scottsville	20.5 mi	6.00 pCi/L	2
Glendale	41.2 mi	7.00 pCi/L	1
Elizabethtown	46.6 mi	18.33 pCi/L	3

Warren County Radon Profile

The bedrock and soils beneath Warren County are classified by the EPA as Radon Zone 1, the highest-risk tier, with predicted average indoor screening levels above 4 pCi/L. Homeowner-submitted tests from 1 city in Warren County average 15.80 pCi/L across 5 tests — 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 Warren County.

Radon FAQ for Smiths Grove, KY

What EPA Radon Zone is Smiths Grove in?

Smiths Grove and the 42171 zip code are in Warren 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 Smiths Grove?

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

Radon mitigation in Smiths Grove 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 Smiths Grove?

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.