How much flood risk does Iredell County actually carry?
Iredell County lands at the 86.6th percentile of FEMA's National Risk Index for flooding, "Relatively Moderate" territory — a middling flood hazard by national standards — 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 Iredell County
Homes with a federally backed mortgage inside Iredell County's mapped high-risk flood zone (the Special Flood Hazard Area, or SFHA) are legally required to carry an NFIP flood policy. In practice, 18.2% of them do — 29 active policies against 159 structures FEMA counts in that zone, leaving a real compliance gap. Across all residential structures in Iredell County, not just the ones FEMA mandates, 0.2% carry an NFIP policy — most flood damage nationally happens outside the mapped high-risk zone, so that broader number matters too.
How Iredell County compares nationally
Iredell County sits at rank 442 of 3144 counties on FEMA's flood hazard scale (1 is worst) and rank 348 of 3144 by population (1 is biggest). Iredell County, North Carolina is home to about 206,361 people across 574.471 square miles of land.
What to do next if you own or are buying in Iredell County
Across all of Iredell County's 76,890 residential structures, 157 carry an NFIP policy today — a county-wide count that still can't tell you one address's own mapped zone.
More on how this number was built
The methodology guide shows exactly which FEMA and Census tables feed Iredell 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.