Collingsworth County, TX radon potential
EPA's own radon map rates Collingsworth County zone 3 - low potential, predicting a county-wide average indoor level below 2 pCi/L. Nationally, Collingsworth County ranks higher in radon potential than 1% of rated counties (the 1st percentile).
Where Collingsworth County sits nationally
Collingsworth County, Texas is home to about 2,611 people across 918.441 square miles. That works out to roughly 3 people per square mile. Within its own EPA zone, Collingsworth County is bigger by population than 4% of the counties that share it. Collingsworth County falls in EPA Radon Region 6, one of 503 counties nationally EPA assigns to that same geologic province.
What this actually means for a house in Collingsworth County
A Zone 3 county like Collingsworth County is predicted closer to the 0.4 pCi/L typical outdoors than to EPA's 4 pCi/L action level. Even at Zone 3, Collingsworth County homes are not guaranteed a low reading — zone is a county-wide average, and EPA recommends testing every home regardless of zone.
Next steps for a home in Collingsworth 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 Texas's state radon program
For Collingsworth County, an ongoing number beats a one-time test - a Airthings radon monitor tracks Collingsworth 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 Collingsworth County's figures come from
Every figure on this page traces to EPA's own Map of Radon Zones and Census data, documented in the methodology guide. Whatever zone Collingsworth County carries, the zone explainer covers what it does and doesn't tell you about any one house.