Is Sabine Parish, LA a radon risk area?

EPA's own radon map rates Sabine Parish zone 3 - low potential, predicting a county-wide average indoor level below 2 pCi/L. Nationally that's the 14th percentile for radon potential — Sabine Parish outranks 14% of every county EPA has rated.

Where Sabine Parish sits nationally

About 21,746 people live in Sabine Parish, Louisiana, spread over 866.631 square miles. Averaged across its land area, Sabine Parish runs about 25 people per square mile. Rank 585 by population within its EPA zone puts Sabine Parish at the 43rd percentile among zone peers. EPA's geology-based Region 6 groups Sabine Parish with 502 other counties nationally sharing its underlying rock and soil profile.

Why the zone isn't the answer by itself

Sabine Parish'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. Even at Zone 3, Sabine Parish homes are not guaranteed a low reading — zone is a county-wide average, and EPA recommends testing every home regardless of zone.

Testing and mitigation in Sabine Parish

Nothing about Sabine Parish'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 Louisiana's state radon program

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

More on how this number was built

Every figure on this page traces to EPA's own Map of Radon Zones and Census data, documented in the methodology guide. Whatever zone Sabine Parish carries, the zone explainer covers what it does and doesn't tell you about any one house.