Jack County, TX radon potential

Jack County is mapped as Zone 3 - Low Potential by EPA — meaning the county-wide average indoor level is predicted below 2 pCi/L. Nationally, Jack County ranks higher in radon potential than 6% of rated counties (the 6th percentile).

How Jack County compares

Jack County, Texas is home to about 9,398 people across 910.972 square miles. Averaged across its land area, Jack County runs about 10 people per square mile. Within its own EPA zone, Jack County is bigger by population than 19% of the counties that share it. Jack County falls in EPA Radon Region 6, one of 503 counties nationally EPA assigns to that same geologic province.

Why the zone isn't the answer by itself

Well clear of both the 1.3 pCi/L national indoor average and EPA's 4 pCi/L action level, Jack County's Zone 3 prediction is the low end of the scale. Even at Zone 3, Jack County homes are not guaranteed a low reading — zone is a county-wide average, and EPA recommends testing every home regardless of zone.

If Jack 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 Texas's state radon program

For Jack County, an ongoing number beats a one-time test - a Airthings radon monitor tracks Jack 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 Jack 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 Jack County carries, the zone explainer covers what it does and doesn't tell you about any one house.