What EPA's radon map says about Nacogdoches County

EPA's own radon map rates Nacogdoches County zone 3 - low potential, predicting a county-wide average indoor level below 2 pCi/L. Nationally that's the 24th percentile for radon potential — Nacogdoches County outranks 24% of every county EPA has rated.

Where Nacogdoches County sits nationally

About 65,728 people live in Nacogdoches County, Texas, spread over 946.324 square miles. Population density there runs about 69 people per square mile. Among counties sharing Nacogdoches County's EPA zone, it outranks 72% of them by population. Geologically, Nacogdoches 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 Nacogdoches County

Nacogdoches County's predicted average sits below the national indoor average of about 1.3 pCi/L, well under EPA's 4 pCi/L action level. Don't read Zone 3 as a pass for Nacogdoches County — EPA's guidance to test every home makes no exception for counties predicted low.

Next steps for a home in Nacogdoches County

Mitigation cost doesn't depend on Nacogdoches 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

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

The methodology guide shows exactly which EPA and Census sources feed Nacogdoches County's numbers. If you're unsure why a low zone still deserves a test, the zone explainer covers that directly.