Is Talladega County, AL a radon risk area?
EPA's own radon map rates Talladega County zone 1 - highest potential, predicting a county-wide average indoor level above 4 pCi/L. That puts Talladega County in the 93rd percentile nationally for radon potential — higher than 93% of the counties EPA has rated.
How Talladega County compares
About 81,375 people live in Talladega County, Alabama, spread over 736.818 square miles. Population density there runs about 110 people per square mile. Rank 224 by population within its EPA zone puts Talladega County at the 79th percentile among zone peers. EPA's geology-based Region 4 groups Talladega County with 735 other counties nationally sharing its underlying rock and soil profile.
What this actually means for a house in Talladega County
Talladega County's predicted average sits above EPA's own action level of 4 pCi/L — the concentration at which EPA recommends fixing a home — versus a national average around 1.3 pCi/L indoors and 0.4 pCi/L outdoors. Being in Zone 1 raises the odds Talladega County homes test above the action level, but it does not mean any specific house does — EPA recommends every home be tested, in every zone, because the only way to know is to test.
Next steps for a home in Talladega County
Nothing about Talladega County's EPA zone changes the mitigation number: $800–$2,500 nationally (around $1,200 typical), set by the house's foundation rather than the county it sits in — and only relevant once a test actually clears 4 pCi/L.
Find Alabama's state radon program
Talladega County's test kit answers today; a Airthings radon monitor keeps answering for Talladega County over time. Affiliate link, RadonZoneCheck earns a commission there, at no extra cost to you. Use code RADONZONE-10OFF at checkout for 10% off.
More on how this number was built
The methodology guide shows exactly which EPA and Census sources feed Talladega County's numbers. Whatever zone Talladega County carries, the zone explainer covers what it does and doesn't tell you about any one house.