What EPA's radon map says about Troup County

Troup County is mapped as Zone 2 - Moderate Potential by EPA — meaning the county-wide average indoor level is predicted between 2 and 4 pCi/L. Rank it against the rest of the country and Troup County lands in the 58th percentile for radon potential.

How Troup County compares

About 71,513 people live in Troup County, Georgia, spread over 414.024 square miles. Population density there runs about 173 people per square mile. Among counties sharing Troup County's EPA zone, it outranks 75% of them by population. Geologically, Troup County is grouped into EPA Region 4 alongside 735 other counties that share its rock and soil setting.

What this actually means for a house in Troup County

EPA's Zone 2 rating for Troup County sits below its own 4 pCi/L action level but above the national indoor average of about 1.3 pCi/L. Middle-of-the-pack doesn't mean risk-free for any one Troup County address — a moderate county average still leaves individual homes to test either side of it.

Next steps for a home in Troup County

Mitigation cost doesn't depend on Troup County's zone — it depends on the house's foundation. A typical system runs $800–$2,500 (about $1,200 typical), and testing first is what tells you whether that's needed at all.

Find Georgia's state radon program

Troup County's test kit answers today; a Airthings radon monitor keeps answering for Troup 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 Troup County's numbers. The guide to what a radon zone actually means covers why testing matters in every zone, not just Zone 1.