Crook County, OR radon potential

EPA's own radon map rates Crook County zone 2 - moderate potential, predicting a county-wide average indoor level between 2 and 4 pCi/L. Crook County sits at the 49th percentile nationally for radon potential — above 49 of every 100 rated counties.

How Crook County compares

Crook County, Oregon is home to about 27,336 people across 2,978.933 square miles. Population density there runs about 9 people per square mile. Within its own EPA zone, Crook County is bigger by population than 50% of the counties that share it. Crook County falls in EPA Radon Region 10, one of 142 counties nationally EPA assigns to that same geologic province.

What this actually means for a house in Crook County

Neither at the 4 pCi/L action level nor down at the roughly 1.3 pCi/L national indoor norm, Crook County's Zone 2 prediction lands in the gap between the two. Nothing about a Zone 2 label lowers the case for testing in Crook County — EPA recommends it in every zone, moderate included.

Next steps for a home in Crook County

A short-term test kit is the standard first step and typically costs far less than mitigation itself. If a test comes back at or above 4 pCi/L, a radon mitigation system for a typical home runs roughly $800–$2,500 (around $1,200 for a common single-family install), driven mainly by foundation type, not by county.

Find Oregon's state radon program

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

Where Crook County's figures come from

Crook County's zone, rank and region all trace back to named EPA and Census sources — the methodology guide lists exactly which ones. If you're unsure why a low zone still deserves a test, the zone explainer covers that directly.