Baker County, FL: EPA's radon zone, explained

Baker County is mapped as Zone 3 - Low Potential by EPA — meaning the county-wide average indoor level is predicted below 2 pCi/L. Baker County sits at the 17th percentile nationally for radon potential — above 17 of every 100 rated counties.

Where Baker County sits nationally

Baker County, Florida is home to about 29,325 people across 585.23 square miles. Population density there runs about 50 people per square mile. By population, Baker County is the 489th largest of every county sharing its EPA zone — the 53rd percentile by population within that zone. EPA's geology-based Region 4 groups Baker County with 735 other counties nationally sharing its underlying rock and soil profile.

Zone vs. an actual test

A Zone 3 county like Baker County is predicted closer to the 0.4 pCi/L typical outdoors than to EPA's 4 pCi/L action level. A Zone 3 rating means Baker County's county-wide average is predicted low, but EPA is explicit that a meaningful share of homes in low-potential zones still test above the action level — a low zone is not a reason to skip testing.

Next steps for a home in Baker County

For a Baker County homeowner, the order is simple: test first, since a kit costs a small fraction of what mitigation would. Only if the result clears 4 pCi/L does a system — typically $800–$2,500, about $1,200 for a common install — become worth pricing out.

Find Florida's state radon program

For Baker County, an ongoing number beats a one-time test - a Airthings radon monitor tracks Baker County's levels over time. RadonZoneCheck earns a commission there, at no extra cost to you. Use code RADONZONE-10OFF at checkout for 10% off.

Where Baker County's figures come from

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