East Baton Rouge Parish, LA radon potential

East Baton Rouge Parish is mapped as Zone 3 - Low Potential by EPA — meaning the county-wide average indoor level is predicted below 2 pCi/L. Nationally, East Baton Rouge Parish ranks higher in radon potential than 31% of rated counties (the 31st percentile).

Where East Baton Rouge Parish sits nationally

East Baton Rouge Parish, Louisiana is home to about 453,022 people across 455.493 square miles. Population density there runs about 995 people per square mile. Within its own EPA zone, East Baton Rouge Parish is bigger by population than 94% of the counties that share it. East Baton Rouge Parish falls in EPA Radon Region 6, one of 503 counties nationally EPA assigns to that same geologic province.

Why the zone isn't the answer by itself

At Zone 3, East Baton Rouge 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 East Baton Rouge Parish — EPA's guidance to test every home makes no exception for counties predicted low.

If East Baton Rouge Parish tests above the action level

A short-term test kit is the standard first step and typically costs far less than mitigation itself. If a test comes back at or above 4 pCi/L, a radon mitigation system for a typical home runs roughly $800–$2,500 (around $1,200 for a common single-family install), driven mainly by foundation type, not by county.

Find Louisiana's state radon program

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

Where East Baton Rouge Parish's figures come from

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