Livingston Parish, LA Radon Zone Data

Livingston Parish, LA: EPA's radon zone, explained

EPA places Livingston 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 Livingston Parish lands in the 28th percentile for radon potential.

Where Livingston Parish sits nationally

Livingston Parish, Louisiana is home to about 152,886 people across 648.14 square miles. That works out to roughly 236 people per square mile. By population, Livingston Parish is the 167th largest of every county sharing its EPA zone — the 84th percentile by population within that zone. Geologically, Livingston Parish 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 Livingston Parish

At Zone 3, Livingston Parish'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. Don't read Zone 3 as a pass for Livingston Parish — EPA's guidance to test every home makes no exception for counties predicted low.

Testing and mitigation in Livingston Parish

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

Where Livingston Parish's figures come from

The methodology guide shows exactly which EPA and Census sources feed Livingston Parish's numbers. If you're unsure why a low zone still deserves a test, the zone explainer covers that directly.