Titus County, TX radon potential

Titus County is mapped as Zone 3 - Low Potential by EPA — meaning the county-wide average indoor level is predicted below 2 pCi/L. Nationally, Titus County ranks higher in radon potential than 18% of rated counties (the 18th percentile).

Where Titus County sits nationally

Titus County, Texas is home to about 31,547 people across 406.302 square miles. Averaged across its land area, Titus County runs about 78 people per square mile. Within its own EPA zone, Titus County is bigger by population than 55% of the counties that share it. EPA's geology-based Region 6 groups Titus County with 502 other counties nationally sharing its underlying rock and soil profile.

Zone vs. an actual test

Titus 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. A Zone 3 rating means Titus County's county-wide average is predicted low, but EPA is explicit that a meaningful share of homes in low-potential zones still test above the action level — a low zone is not a reason to skip testing.

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

Where Titus County's figures come from

Titus County's zone, rank and region all trace back to named EPA and Census sources — the methodology guide lists exactly which ones. The guide to what a radon zone actually means covers why testing matters in every zone, not just Zone 1.