What EPA's radon map says about Pontotoc County

Pontotoc County is mapped as Zone 3 - Low Potential by EPA — meaning the county-wide average indoor level is predicted below 2 pCi/L. Pontotoc County sits at the 20th percentile nationally for radon potential — above 20 of every 100 rated counties.

Pontotoc County by the numbers

About 38,310 people live in Pontotoc County, Oklahoma, spread over 720.353 square miles. Population density there runs about 53 people per square mile. Among counties sharing Pontotoc County's EPA zone, it outranks 60% of them by population. EPA's geology-based Region 6 groups Pontotoc County with 502 other counties nationally sharing its underlying rock and soil profile.

What this actually means for a house in Pontotoc County

Pontotoc County's Zone 3 prediction undercuts the roughly 1.3 pCi/L most US homes average, nowhere near EPA's 4 pCi/L threshold for recommending mitigation. A Zone 3 label describes Pontotoc 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 Pontotoc County

Mitigation cost doesn't depend on Pontotoc County's zone — it depends on the house's foundation. A typical system runs $800–$2,500 (about $1,200 typical), and testing first is what tells you whether that's needed at all.

Find Oklahoma's state radon program

Pontotoc County's test kit answers today; a Airthings radon monitor keeps answering for Pontotoc County over time. Affiliate link, RadonZoneCheck earns a commission there, at no extra cost to you. RADONZONE-10OFF at checkout knocks 10% off.

More on how this number was built

The methodology guide shows exactly which EPA and Census sources feed Pontotoc County's numbers. Whatever zone Pontotoc County carries, the zone explainer covers what it does and doesn't tell you about any one house.