Jackson County, OK: EPA's radon zone, explained

EPA places Jackson County in Zone 3 - Low Potential — a predicted county-wide average indoor radon level below 2 pCi/L, based on the geology, soil and aerial radioactivity data behind EPA's national map. Jackson County sits at the 16th percentile nationally for radon potential — above 16 of every 100 rated counties.

How Jackson County compares

Jackson County, Oklahoma is home to about 24,541 people across 802.653 square miles. Population density there runs about 31 people per square mile. By population, Jackson County is the 546th largest of every county sharing its EPA zone — the 47th percentile by population within that zone. EPA's geology-based Region 6 groups Jackson County with 502 other counties nationally sharing its underlying rock and soil profile.

What this actually means for a house in Jackson County

Well clear of both the 1.3 pCi/L national indoor average and EPA's 4 pCi/L action level, Jackson County's Zone 3 prediction is the low end of the scale. A Zone 3 label describes Jackson County's average, not any one basement or slab in it — testing is still the only way an individual homeowner actually finds out.

Testing and mitigation in Jackson County

For a Jackson County homeowner, the order is simple: test first, since a kit costs a small fraction of what mitigation would. Only if the result clears 4 pCi/L does a system — typically $800–$2,500, about $1,200 for a common install — become worth pricing out.

Find Oklahoma's state radon program

For Jackson County, an ongoing number beats a one-time test - a Airthings radon monitor tracks Jackson County's levels over time. RadonZoneCheck earns a commission there, at no extra cost to you. Code RADONZONE-10OFF takes 10% off at checkout.

Where Jackson County's figures come from

The methodology guide shows exactly which EPA and Census sources feed Jackson County's numbers. If you're unsure why a low zone still deserves a test, the zone explainer covers that directly.