How much flood risk does Pinellas County actually carry?
Pinellas County lands at the 99.2th percentile of FEMA's National Risk Index for flooding, "Very High" territory — among the highest flood hazard in the country — with the hazard split between inland river flooding (about 1.6 times a year) and coastal storm surge (about 3.7 times a year). That's a county-wide figure, not a per-address one — FEMA's parcel maps are a live lookup, not a bulk file.
Mandatory flood insurance compliance in Pinellas County
The raw NFIP numbers for Pinellas County would imply over 100% of mandated homes carry a policy, which just means FEMA's structure-count denominator for this county is wrong, not that compliance is unusually good. This is flagged rather than clipped to look normal — details in the data quality guide. Across all residential structures in Pinellas County, not just the ones FEMA mandates, 19.4% carry an NFIP policy — most flood damage nationally happens outside the mapped high-risk zone, so that broader number matters too.
Where Pinellas County ranks
Pinellas County sits at rank 30 of 3144 counties on FEMA's flood hazard scale (1 is worst) and rank 57 of 3144 by population (1 is biggest). About 965,870 people live in Pinellas County, Florida, spread over 273.793 square miles.
What to do next if you own or are buying in Pinellas County
FEMA counts 391,677 residential structures in Pinellas County overall, 76,020 of them carrying some form of NFIP coverage — but a lender or insurer cares about one parcel, not that county total.
More on how this number was built
The methodology guide shows exactly which FEMA and Census tables feed Pinellas County's numbers. See the data quality guide for why Pinellas County, like hundreds of other counties, doesn't get a clean compliance percentage.