What EPA's radon map says about Monroe County

EPA's own radon map rates Monroe County zone 2 - moderate potential, predicting a county-wide average indoor level between 2 and 4 pCi/L. Nationally that's the 51st percentile for radon potential — Monroe County outranks 51% of every county EPA has rated.

Where Monroe County sits nationally

About 31,437 people live in Monroe County, Georgia, spread over 396.092 square miles. Population density there runs about 79 people per square mile. Among counties sharing Monroe County's EPA zone, it outranks 54% of them by population. Monroe County falls in EPA Radon Region 4, one of 736 counties nationally EPA assigns to that same geologic province.

Zone vs. an actual test

Neither at the 4 pCi/L action level nor down at the roughly 1.3 pCi/L national indoor norm, Monroe County's Zone 2 prediction lands in the gap between the two. Middle-of-the-pack doesn't mean risk-free for any one Monroe County address — a moderate county average still leaves individual homes to test either side of it.

If Monroe County tests above the action level

Mitigation cost doesn't depend on Monroe 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

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