Is Kent County, TX a radon risk area?

Kent 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 0th percentile for radon potential — Kent County outranks 0% of every county EPA has rated.

How Kent County compares

About 703 people live in Kent County, Texas, spread over 902.507 square miles. Population density there runs about 1 people per square mile. Rank 1016 by population within its EPA zone puts Kent County at the 1st percentile among zone peers. Geologically, Kent 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

Kent County's Zone 3 prediction undercuts the roughly 1.3 pCi/L most US homes average, nowhere near EPA's 4 pCi/L threshold for recommending mitigation. Low doesn't mean zero: EPA's own data shows homes in Zone 3 counties like Kent County testing above the action level often enough that skipping a test isn't the safe assumption.

Next steps for a home in Kent County

Nothing about Kent 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

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

More on how this number was built

Kent 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.