Is Sarasota County, FL a radon risk area?

EPA's own radon map rates Sarasota 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 Sarasota County lands in the 31st percentile for radon potential.

How Sarasota County compares

About 476,604 people live in Sarasota County, Florida, spread over 556.05 square miles. Averaged across its land area, Sarasota County runs about 857 people per square mile. Rank 53 by population within its EPA zone puts Sarasota County at the 95th percentile among zone peers. EPA's geology-based Region 4 groups Sarasota County with 735 other counties nationally sharing its underlying rock and soil profile.

Zone vs. an actual test

A Zone 3 county like Sarasota County is predicted closer to the 0.4 pCi/L typical outdoors than to EPA's 4 pCi/L action level. Don't read Zone 3 as a pass for Sarasota County — EPA's guidance to test every home makes no exception for counties predicted low.

Testing and mitigation in Sarasota County

Nothing about Sarasota County's EPA zone changes the mitigation number: $800–$2,500 nationally (around $1,200 typical), set by the house's foundation rather than the county it sits in — and only relevant once a test actually clears 4 pCi/L.

Find Florida's state radon program

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

More on how this number was built

Every figure on this page traces to EPA's own Map of Radon Zones and Census data, documented in the methodology guide. The guide to what a radon zone actually means covers why testing matters in every zone, not just Zone 1.