Manatee County, FL radon potential

EPA's own radon map rates Manatee County zone 3 - low potential, predicting a county-wide average indoor level below 2 pCi/L. Rank it against the rest of the country and Manatee County lands in the 31st percentile for radon potential.

How Manatee County compares

Manatee County, Florida is home to about 458,352 people across 742.768 square miles. That works out to roughly 617 people per square mile. Within its own EPA zone, Manatee County is bigger by population than 95% of the counties that share it. EPA's geology-based Region 4 groups Manatee County with 735 other counties nationally sharing its underlying rock and soil profile.

Zone vs. an actual test

Manatee County's Zone 3 prediction undercuts the roughly 1.3 pCi/L most US homes average, nowhere near EPA's 4 pCi/L threshold for recommending mitigation. A Zone 3 label describes Manatee County's average, not any one basement or slab in it — testing is still the only way an individual homeowner actually finds out.

If Manatee County tests above the action level

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 Manatee County, an ongoing number beats a one-time test - a Airthings radon monitor tracks Manatee 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 Manatee County's figures come from

Every figure on this page traces to EPA's own Map of Radon Zones and Census data, documented in the methodology guide. If you're unsure why a low zone still deserves a test, the zone explainer covers that directly.