Hall County, TX radon potential

Hall 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 Hall County in the 2nd percentile nationally for radon potential — higher than 2% of the counties EPA has rated.

How Hall County compares

Hall County, Texas is home to about 2,828 people across 883.492 square miles. Averaged across its land area, Hall County runs about 3 people per square mile. Within its own EPA zone, Hall County is bigger by population than 5% of the counties that share it. EPA's geology-based Region 6 groups Hall County with 502 other counties nationally sharing its underlying rock and soil profile.

What this actually means for a house in Hall County

Well clear of both the 1.3 pCi/L national indoor average and EPA's 4 pCi/L action level, Hall County's Zone 3 prediction is the low end of the scale. Even at Zone 3, Hall 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 Hall 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 Hall County, an ongoing number beats a one-time test - a Airthings radon monitor tracks Hall 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 Hall County's figures come from

Hall County's zone, rank and region all trace back to named EPA and Census sources — the methodology guide lists exactly which ones. Whatever zone Hall County carries, the zone explainer covers what it does and doesn't tell you about any one house.