Tuscaloosa County, AL radon potential

EPA places Tuscaloosa County in Zone 2 - Moderate Potential — a predicted county-wide average indoor radon level between 2 and 4 pCi/L, based on the geology, soil and aerial radioactivity data behind EPA's national map. That puts Tuscaloosa County in the 63rd percentile nationally for radon potential — higher than 63% of the counties EPA has rated.

Where Tuscaloosa County sits nationally

Tuscaloosa County, Alabama is home to about 241,212 people across 1,320.863 square miles. Population density there runs about 183 people per square mile. Within its own EPA zone, Tuscaloosa County is bigger by population than 91% of the counties that share it. Tuscaloosa County falls in EPA Radon Region 4, one of 736 counties nationally EPA assigns to that same geologic province.

What this actually means for a house in Tuscaloosa County

Call it a middle case: above the 1.3 pCi/L most US homes average, below the 4 pCi/L line EPA uses to recommend mitigation — that's Tuscaloosa County's Zone 2 prediction. A county-wide moderate average, like Tuscaloosa County's, can still hide a specific house well above or below it — testing is what actually answers the question.

Testing and mitigation in Tuscaloosa County

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 Alabama's state radon program

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

Where Tuscaloosa County's figures come from

The methodology guide shows exactly which EPA and Census sources feed Tuscaloosa County's numbers. The guide to what a radon zone actually means covers why testing matters in every zone, not just Zone 1.