Rusk County, TX radon potential
EPA's own radon map rates Rusk County zone 3 - low potential, predicting a county-wide average indoor level below 2 pCi/L. Nationally, Rusk County ranks higher in radon potential than 23% of rated counties (the 23rd percentile).
Rusk County by the numbers
Rusk County, Texas is home to about 53,391 people across 924.199 square miles. Averaged across its land area, Rusk County runs about 58 people per square mile. Within its own EPA zone, Rusk County is bigger by population than 68% of the counties that share it. EPA's geology-based Region 6 groups Rusk County with 502 other counties nationally sharing its underlying rock and soil profile.
What this actually means for a house in Rusk County
Rusk 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 Rusk 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.
If Rusk 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 Rusk County, an ongoing number beats a one-time test - a Airthings radon monitor tracks Rusk County's levels over time. RadonZoneCheck earns a commission there, at no extra cost to you. RADONZONE-10OFF at checkout knocks 10% off.
Where Rusk County's figures come from
Rusk County's zone, rank and region all trace back to named EPA and Census sources — the methodology guide lists exactly which ones. If you're unsure why a low zone still deserves a test, the zone explainer covers that directly.