How much flood risk does Brevard County actually carry?
Brevard County lands at the 95th percentile of FEMA's National Risk Index for flooding, "Relatively High" territory — well above the national norm for flood hazard — with the hazard driven by inland rivers and flash flooding rather than the coast — FEMA's model puts a flood event here at about once every 1 years. 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 Brevard County
47% of the homes FEMA requires to carry flood insurance in Brevard County — those inside the mapped Special Flood Hazard Area — actually have a policy in force: 8,018 policies against 17,068 mandated structures, which means a meaningful share of legally-required coverage simply isn't there. Across all residential structures in Brevard County, not just the ones FEMA mandates, 11.8% carry an NFIP policy — most flood damage nationally happens outside the mapped high-risk zone, so that broader number matters too.
Where Brevard County ranks
Brevard County sits at rank 170 of 3144 counties on FEMA's flood hazard scale (1 is worst) and rank 109 of 3144 by population (1 is biggest). Brevard County, Florida covers 1,014.973 square miles and counts roughly 658,447 residents.
Checking a specific address in Brevard County
FEMA counts 249,193 residential structures in Brevard County overall, 29,365 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 Brevard County's numbers. The guide to what the Special Flood Hazard Area actually means explains why the mandatory-insurance rule exists and who it applies to.