Van Zandt County, TX radon potential
Van Zandt County is mapped as Zone 3 - Low Potential by EPA — meaning the county-wide average indoor level is predicted below 2 pCi/L. Rank it against the rest of the country and Van Zandt County lands in the 24th percentile for radon potential.
Van Zandt County by the numbers
Van Zandt County, Texas is home to about 65,304 people across 842.573 square miles. Averaged across its land area, Van Zandt County runs about 78 people per square mile. Within its own EPA zone, Van Zandt County is bigger by population than 72% of the counties that share it. Geologically, Van Zandt County is grouped into EPA Region 6 alongside 502 other counties that share its rock and soil setting.
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, Van Zandt County's Zone 3 prediction is the low end of the scale. A Zone 3 rating means Van Zandt 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.
Next steps for a home in Van Zandt 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 Van Zandt County, an ongoing number beats a one-time test - a Airthings radon monitor tracks Van Zandt County's levels over time. RadonZoneCheck earns a commission there, at no extra cost to you. Code RADONZONE-10OFF takes 10% off at checkout.
Where Van Zandt 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. If you're unsure why a low zone still deserves a test, the zone explainer covers that directly.