Texas County, MO radon potential

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

How Texas County compares

Texas County, Missouri is home to about 25,715 people across 1,177.267 square miles. Averaged across its land area, Texas County runs about 22 people per square mile. Within its own EPA zone, Texas County is bigger by population than 47% of the counties that share it. Geologically, Texas County is grouped into EPA Region 7 alongside 411 other counties that share its rock and soil setting.

Why the zone isn't the answer by itself

Neither at the 4 pCi/L action level nor down at the roughly 1.3 pCi/L national indoor norm, Texas County's Zone 2 prediction lands in the gap between the two. A Zone 2 rating is a moderate county-wide average, not a guarantee about any one house in Texas County — testing is the only way to know an individual home's actual level.

If Texas County tests above the action level

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 Missouri's state radon program

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

Where Texas County's figures come from

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