Franklin, KY Radon Levels

Q: What EPA Radon Zone is Franklin in?

Franklin is in Simpson County, EPA Zone 2.

Q: How much does radon mitigation cost in Franklin?

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

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

Franklin, KY Radon Facts

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

County Simpson County, KY

Zip Code 42134

Positioned in Simpson County within the Bowling Green Metro area, Franklin's 42134 zip code sits atop limestone bedrock formations that can produce moderate radon levels throughout south-central Kentucky. While comprehensive testing data for this community is currently limited, the underlying geology warrants individual home radon testing by residents. Local housing stock includes both older residential neighborhoods and newer suburban development, with many homes featuring basements or crawl spaces where radon can potentially accumulate.

13.00

pCi/L area average

Above EPA Action Level

Nearby homeowner readings average 13.00 pCi/L, based on 7 tests from 2 nearby cities. No readings have been submitted for Franklin 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+

Franklin, 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 Franklin, KY

No homeowner tests have been submitted for Franklin 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	18.8 mi	15.80 pCi/L	5
Scottsville	21.0 mi	6.00 pCi/L	2

Simpson County Radon Profile

EPA mapping assigns Simpson 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 Simpson 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 Simpson County home regardless of zone or a neighbor's results.

Radon FAQ for Franklin, KY

What EPA Radon Zone is Franklin in?

Franklin and the 42134 zip code are in Simpson 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 Franklin?

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

Radon mitigation in Franklin 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 Franklin?

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.