What EPA's radon map says about Randolph County

EPA places Randolph County in Zone 3 - Low Potential — a predicted county-wide average indoor radon level below 2 pCi/L, based on the geology, soil and aerial radioactivity data behind EPA's national map. Randolph County sits at the 4th percentile nationally for radon potential — above 4 of every 100 rated counties.

Randolph County by the numbers

About 6,085 people live in Randolph County, Georgia, spread over 428.236 square miles. Population density there runs about 14 people per square mile. Among counties sharing Randolph County's EPA zone, it outranks 11% of them by population. Geologically, Randolph 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 Randolph County

Well clear of both the 1.3 pCi/L national indoor average and EPA's 4 pCi/L action level, Randolph County's Zone 3 prediction is the low end of the scale. Don't read Zone 3 as a pass for Randolph County — EPA's guidance to test every home makes no exception for counties predicted low.

Testing and mitigation in Randolph County

Mitigation cost doesn't depend on Randolph 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

Randolph County's test kit answers today; a Airthings radon monitor keeps answering for Randolph County over time. Affiliate link, RadonZoneCheck earns a commission there, at no extra cost to you. RADONZONE-10OFF at checkout knocks 10% off.

More on how this number was built

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