Russell County, AL: EPA's radon zone, explained

EPA places Russell 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 Russell County in the 56th percentile nationally for radon potential — higher than 56% of the counties EPA has rated.

Where Russell County sits nationally

Russell County, Alabama is home to about 58,837 people across 641.182 square miles. Averaged across its land area, Russell County runs about 92 people per square mile. By population, Russell County is the 310th largest of every county sharing its EPA zone — the 70th percentile by population within that zone. Russell County falls in EPA Radon Region 4, one of 736 counties nationally EPA assigns to that same geologic province.

Zone vs. an actual test

Russell County's Zone 2 prediction clears the 1.3 pCi/L national indoor average without reaching EPA's own 4 pCi/L point for recommending a fix. Russell County's Zone 2 rating sits in the middle nationally; EPA's guidance is unchanged by that — test every home regardless of its zone.

Next steps for a home in Russell County

For a Russell County 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 Alabama's state radon program

For Russell County, an ongoing number beats a one-time test - a Airthings radon monitor tracks Russell 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 Russell County's figures come from

Russell County's zone, rank and region all trace back to named EPA and Census sources — the methodology guide lists exactly which ones. The guide to what a radon zone actually means covers why testing matters in every zone, not just Zone 1.