Is Ward County, TX a radon risk area?

Ward County is mapped as Zone 3 - Low Potential by EPA — meaning the county-wide average indoor level is predicted below 2 pCi/L. Nationally that's the 8th percentile for radon potential — Ward County outranks 8% of every county EPA has rated.

How Ward County compares

About 11,038 people live in Ward County, Texas, spread over 835.603 square miles. Population density there runs about 13 people per square mile. Rank 794 by population within its EPA zone puts Ward County at the 23rd percentile among zone peers. Geologically, Ward County is grouped into EPA Region 6 alongside 502 other counties that share its rock and soil setting.

What this actually means for a house in Ward County

At Zone 3, Ward County's predicted county average is under the national indoor average (~1.3 pCi/L) and well below EPA's 4 pCi/L action level — outdoor air nationally runs about 0.4 pCi/L for comparison. A Zone 3 label describes Ward County's average, not any one basement or slab in it — testing is still the only way an individual homeowner actually finds out.

If Ward County tests above the action level

Nothing about Ward County's EPA zone changes the mitigation number: $800–$2,500 nationally (around $1,200 typical), set by the house's foundation rather than the county it sits in — and only relevant once a test actually clears 4 pCi/L.

Find Texas's state radon program

Ward County's test kit answers today; a Airthings radon monitor keeps answering for Ward County over time. Affiliate link, RadonZoneCheck earns a commission there, at no extra cost to you. Code RADONZONE-10OFF takes 10% off at checkout.

More on how this number was built

The methodology guide shows exactly which EPA and Census sources feed Ward County's numbers. Whatever zone Ward County carries, the zone explainer covers what it does and doesn't tell you about any one house.