Is Nowata County, OK a radon risk area?

EPA's own radon map rates Nowata County zone 3 - low potential, predicting a county-wide average indoor level below 2 pCi/L. Nowata County sits at the 6th percentile nationally for radon potential — above 6 of every 100 rated counties.

How Nowata County compares

About 9,561 people live in Nowata County, Oklahoma, spread over 565.817 square miles. Population density there runs about 17 people per square mile. Rank 831 by population within its EPA zone puts Nowata County at the 19th percentile among zone peers. Geologically, Nowata County is grouped into EPA Region 6 alongside 502 other counties that share its rock and soil setting.

What this actually means for a house in Nowata County

Well clear of both the 1.3 pCi/L national indoor average and EPA's 4 pCi/L action level, Nowata County's Zone 3 prediction is the low end of the scale. A Zone 3 label describes Nowata 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 Nowata County

Nothing about Nowata County's EPA zone changes the mitigation number: $800–$2,500 nationally (around $1,200 typical), set by the house's foundation rather than the county it sits in — and only relevant once a test actually clears 4 pCi/L.

Find Oklahoma's state radon program

Nowata County's test kit answers today; a Airthings radon monitor keeps answering for Nowata 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

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.