Ector County, TX radon potential

EPA places Ector County in Zone 3 - Low Potential — a predicted county-wide average indoor radon level below 2 pCi/L, based on the geology, soil and aerial radioactivity data behind EPA's national map. Nationally that's the 28th percentile for radon potential — Ector County outranks 28% of every county EPA has rated.

Where Ector County sits nationally

Ector County, Texas is home to about 170,022 people across 897.884 square miles. That works out to roughly 189 people per square mile. Within its own EPA zone, Ector County is bigger by population than 85% of the counties that share it. EPA's geology-based Region 6 groups Ector County with 502 other counties nationally sharing its underlying rock and soil profile.

What this actually means for a house in Ector County

Well clear of both the 1.3 pCi/L national indoor average and EPA's 4 pCi/L action level, Ector County's Zone 3 prediction is the low end of the scale. Low doesn't mean zero: EPA's own data shows homes in Zone 3 counties like Ector County testing above the action level often enough that skipping a test isn't the safe assumption.

If Ector 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 Ector County, an ongoing number beats a one-time test - a Airthings radon monitor tracks Ector 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 Ector 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. The guide to what a radon zone actually means covers why testing matters in every zone, not just Zone 1.