Franklin, OH Radon Levels
Check local Franklin radon levels and find certified testing and mitigation professionals to keep your home safe
Franklin, OH Radon Facts
EPA Radon Zone
Zone 1 — High Risk
> 4.0 pCi/L (Zone 1)
County
Warren County, OH
Zip Code
45005
Located in Warren County between the Cincinnati and Dayton metropolitan areas, Franklin sits on glacial till deposits over limestone bedrock common to southwestern Ohio. While specific radon testing data for zip code 45005 is limited, the area's EPA Zone 1 classification suggests generally lower radon potential. However, the underlying limestone geology means individual home testing remains important for accurate assessment.
Franklin, OH 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 Franklin?
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Radon FAQ for Franklin, OH
What EPA Radon Zone is Franklin in?
Franklin and the 45005 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.
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 Ohio
Cities in Ohio with the most user-submitted radon test data, ranked by number of submissions.
| City | Avg User Radon Level | Submissions |
|---|---|---|
| Marietta | 8.00 pCi/L | 5 |
| Cincinnati | 5.20 pCi/L | 5 |
| Hilliard | 11.75 pCi/L | 4 |
| Wilmington | 5.25 pCi/L | 4 |
| Newark | 15.00 pCi/L | 3 |
| Athens | 11.33 pCi/L | 3 |
| Findlay | 10.33 pCi/L | 3 |
| Perrysburg | 9.67 pCi/L | 3 |
| Powell | 8.33 pCi/L | 3 |
| Columbus | 6.00 pCi/L | 3 |