Lafayette County, FL radon potential

EPA's own radon map rates Lafayette County zone 3 - low potential, predicting a county-wide average indoor level below 2 pCi/L. That puts Lafayette County in the 6th percentile nationally for radon potential — higher than 6% of the counties EPA has rated.

Lafayette County by the numbers

Lafayette County, Florida is home to about 8,640 people across 543.345 square miles. That works out to roughly 16 people per square mile. Within its own EPA zone, Lafayette County is bigger by population than 17% of the counties that share it. EPA's geology-based Region 4 groups Lafayette County with 735 other counties nationally sharing its underlying rock and soil profile.

What this actually means for a house in Lafayette County

A Zone 3 county like Lafayette County is predicted closer to the 0.4 pCi/L typical outdoors than to EPA's 4 pCi/L action level. Low doesn't mean zero: EPA's own data shows homes in Zone 3 counties like Lafayette County testing above the action level often enough that skipping a test isn't the safe assumption.

Testing and mitigation in Lafayette County

A short-term test kit is the standard first step and typically costs far less than mitigation itself. If a test comes back at or above 4 pCi/L, a radon mitigation system for a typical home runs roughly $800–$2,500 (around $1,200 for a common single-family install), driven mainly by foundation type, not by county.

Find Florida's state radon program

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

Where Lafayette County's figures come from

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