What EPA's radon map says about Murray County

Murray County is mapped as Zone 3 - Low Potential by EPA — meaning the county-wide average indoor level is predicted below 2 pCi/L. Rank it against the rest of the country and Murray County lands in the 20th percentile for radon potential.

How Murray County compares

About 41,316 people live in Murray County, Georgia, spread over 344.494 square miles. That works out to roughly 120 people per square mile. Among counties sharing Murray County's EPA zone, it outranks 61% of them by population. Murray County falls in EPA Radon Region 4, one of 736 counties nationally EPA assigns to that same geologic province.

Zone vs. an actual test

A Zone 3 county like Murray County is predicted closer to the 0.4 pCi/L typical outdoors than to EPA's 4 pCi/L action level. Don't read Zone 3 as a pass for Murray County — EPA's guidance to test every home makes no exception for counties predicted low.

Next steps for a home in Murray County

Mitigation cost doesn't depend on Murray 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

Murray County's test kit answers today; a Airthings radon monitor keeps answering for Murray 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 Murray County's numbers. Whatever zone Murray County carries, the zone explainer covers what it does and doesn't tell you about any one house.