Franklin, KY Radon Mitigation and Testing

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.

Simpson County

EPA Zone 2

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.

Franklin, KY Radon Mitigation

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

Franklin, KY Radon Testing

Finding qualified radon testing professionals is the first step toward protecting your home.

Franklin Radon Facts

Key details about the radon risk profile for Franklin and the 42134 zip code area.

EPA Radon Zone

Zone 2 — Moderate Risk

County

Simpson County, KY

Zip Code

42134

Predicted Screening Level

2–4 pCi/L (Zone 2)

Franklin and the 42134 zip code are located in Simpson County, which has an EPA assigned Radon Zone of 2. A radon zone of 2 predicts an average indoor radon screening level between 2 and 4 pCi/L. The EPA recommends testing every home regardless of zone classification.

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.

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.

Most Active Radon Markets in Kentucky

Cities with the most user-submitted radon test data in the state.

City	Avg User Radon Level	Submissions
Bowling Green	15.80 pCi/L	5
Lexington	8.40 pCi/L	5
Frankfort	7.80 pCi/L	5
Florence	5.40 pCi/L	5
Owensboro	5.33 pCi/L	3
Union	4.67 pCi/L	3
Brandenburg	11.50 pCi/L	2
Harrodsburg	9.00 pCi/L	2
Louisville	5.50 pCi/L	2
Campbellsville	11.00 pCi/L	1