Pointe Coupee Parish, LA: EPA's radon zone, explained

EPA places Pointe Coupee Parish 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. Rank it against the rest of the country and Pointe Coupee Parish lands in the 13th percentile for radon potential.

Where Pointe Coupee Parish sits nationally

Pointe Coupee Parish, Louisiana is home to about 19,845 people across 555.495 square miles. Averaged across its land area, Pointe Coupee Parish runs about 36 people per square mile. By population, Pointe Coupee Parish is the 623rd largest of every county sharing its EPA zone — the 40th percentile by population within that zone. Geologically, Pointe Coupee Parish is grouped into EPA Region 6 alongside 502 other counties that share its rock and soil setting.

Zone vs. an actual test

A Zone 3 county like Pointe Coupee Parish is predicted closer to the 0.4 pCi/L typical outdoors than to EPA's 4 pCi/L action level. Low doesn't mean zero: EPA's own data shows homes in Zone 3 counties like Pointe Coupee Parish testing above the action level often enough that skipping a test isn't the safe assumption.

Next steps for a home in Pointe Coupee Parish

For a Pointe Coupee Parish homeowner, the order is simple: test first, since a kit costs a small fraction of what mitigation would. Only if the result clears 4 pCi/L does a system — typically $800–$2,500, about $1,200 for a common install — become worth pricing out.

Find Louisiana's state radon program

For Pointe Coupee Parish, an ongoing number beats a one-time test - a Airthings radon monitor tracks Pointe Coupee Parish's levels over time. RadonZoneCheck earns a commission there, at no extra cost to you. Use code RADONZONE-10OFF at checkout for 10% off.

Where Pointe Coupee Parish'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. Whatever zone Pointe Coupee Parish carries, the zone explainer covers what it does and doesn't tell you about any one house.