What EPA's radon map says about Craig County

EPA's own radon map rates Craig County zone 3 - low potential, predicting a county-wide average indoor level below 2 pCi/L. That puts Craig County in the 10th percentile nationally for radon potential — higher than 10% of the counties EPA has rated.

Where Craig County sits nationally

About 14,506 people live in Craig County, Oklahoma, spread over 761.264 square miles. Population density there runs about 19 people per square mile. Among counties sharing Craig County's EPA zone, it outranks 30% of them by population. EPA's geology-based Region 6 groups Craig County with 502 other counties nationally sharing its underlying rock and soil profile.

What this actually means for a house in Craig County

A Zone 3 county like Craig County is predicted closer to the 0.4 pCi/L typical outdoors than to EPA's 4 pCi/L action level. A Zone 3 rating means Craig County's county-wide average is predicted low, but EPA is explicit that a meaningful share of homes in low-potential zones still test above the action level — a low zone is not a reason to skip testing.

Testing and mitigation in Craig County

Mitigation cost doesn't depend on Craig 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

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

More on how this number was built

Every figure on this page traces to EPA's own Map of Radon Zones and Census data, documented in the methodology guide. If you're unsure why a low zone still deserves a test, the zone explainer covers that directly.