What EPA's radon map says about Glades County

EPA's own radon map rates Glades County zone 3 - low potential, predicting a county-wide average indoor level below 2 pCi/L. Nationally, Glades County ranks higher in radon potential than 9% of rated counties (the 9th percentile).

Glades County by the numbers

About 13,132 people live in Glades County, Florida, spread over 806.822 square miles. That works out to roughly 16 people per square mile. Among counties sharing Glades County's EPA zone, it outranks 27% of them by population. Glades County falls in EPA Radon Region 4, one of 736 counties nationally EPA assigns to that same geologic province.

Zone vs. an actual test

Glades County's predicted average sits below the national indoor average of about 1.3 pCi/L, well under EPA's 4 pCi/L action level. Don't read Zone 3 as a pass for Glades County — EPA's guidance to test every home makes no exception for counties predicted low.

If Glades County tests above the action level

Mitigation cost doesn't depend on Glades 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 Florida's state radon program

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

More on how this number was built

The methodology guide shows exactly which EPA and Census sources feed Glades County's numbers. Whatever zone Glades County carries, the zone explainer covers what it does and doesn't tell you about any one house.