What EPA's radon map says about Curry County

EPA's own radon map rates Curry County zone 3 - low potential, predicting a county-wide average indoor level below 2 pCi/L. Nationally, Curry County ranks higher in radon potential than 15% of rated counties (the 15th percentile).

Curry County by the numbers

About 22,774 people live in Curry County, Oregon, spread over 1,628.395 square miles. Averaged across its land area, Curry County runs about 14 people per square mile. Among counties sharing Curry County's EPA zone, it outranks 45% of them by population. EPA's geology-based Region 10 groups Curry County with 141 other counties nationally sharing its underlying rock and soil profile.

What this actually means for a house in Curry County

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

Next steps for a home in Curry County

Mitigation cost doesn't depend on Curry 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 Oregon's state radon program

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