Hillsboro, OH Radon Levels
Check local Hillsboro radon levels and find certified testing and mitigation professionals to keep your home safe
Hillsboro, OH Radon Facts
EPA Radon Zone
Zone 2 — Moderate Risk
2–4 pCi/L (Zone 2)
County
Highland County, OH
Zip Code
45133
Positioned in Highland County within the Cincinnati Metro area, Hillsboro sits over Ordovician shale and limestone bedrock that contributes to Ohio's generally elevated radon potential. The community's housing stock in zip code 45133 spans historic homes from the 1800s to newer suburban development, many featuring full basements typical of southern Ohio construction. Limited testing data makes baseline radon measurement particularly important for area residents.
Hillsboro, 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 Hillsboro?
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Radon FAQ for Hillsboro, OH
What EPA Radon Zone is Hillsboro in?
Hillsboro and the 45133 zip code are in Highland 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 Hillsboro?
Radon mitigation in Hillsboro 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 Hillsboro?
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 |