What EPA's radon map says about Cochran County

Cochran County is mapped as Zone 3 - Low Potential by EPA — meaning the county-wide average indoor level is predicted below 2 pCi/L. That puts Cochran County in the 1st percentile nationally for radon potential — higher than 1% of the counties EPA has rated.

How Cochran County compares

About 2,583 people live in Cochran County, Texas, spread over 775.082 square miles. Averaged across its land area, Cochran County runs about 3 people per square mile. Among counties sharing Cochran County's EPA zone, it outranks 4% of them by population. EPA's geology-based Region 6 groups Cochran County with 502 other counties nationally sharing its underlying rock and soil profile.

Zone vs. an actual test

Well clear of both the 1.3 pCi/L national indoor average and EPA's 4 pCi/L action level, Cochran County's Zone 3 prediction is the low end of the scale. Low doesn't mean zero: EPA's own data shows homes in Zone 3 counties like Cochran County testing above the action level often enough that skipping a test isn't the safe assumption.

Testing and mitigation in Cochran County

Mitigation cost doesn't depend on Cochran 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 Texas's state radon program

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

Cochran 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.