Onia, AR Radon Levels
Check local Onia radon levels and find certified testing and mitigation professionals to keep your home safe
Onia, AR Radon Facts
EPA Radon Zone
Zone 2 — Moderate Risk
2–4 pCi/L (Zone 2)
County
Stone County, AR
Zip Code
72663
Nestled in the Arkansas Ozarks within Stone County, Onia sits over the region's characteristic limestone and dolomite formations that can contribute to moderate radon levels in enclosed spaces. The area's housing includes both traditional mountain homes and newer rural construction, with many properties featuring partial basements or built into hillsides. While specific radon data for the 72663 zip code remains limited, the underlying geology suggests residents should test their homes for radon accumulation.
Onia, AR 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 Onia?
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Radon FAQ for Onia, AR
What EPA Radon Zone is Onia in?
Onia and the 72663 zip code are in Stone 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 Onia?
Radon mitigation in Onia 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 Onia?
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 Arkansas
Cities in Arkansas with the most user-submitted radon test data, ranked by number of submissions.
| City | Avg User Radon Level | Submissions |
|---|---|---|
| Hot Springs Village | 11.60 pCi/L | 5 |
| Bentonville | 4.00 pCi/L | 4 |
| Bella Vista | 13.67 pCi/L | 3 |
| Little Rock | 7.00 pCi/L | 1 |