How much flood risk does Warren County actually carry?
Warren County lands at the 12.3th percentile of FEMA's National Risk Index for flooding, "Very Low" territory — among the lowest flood hazard in the country — with the hazard driven by inland rivers and flash flooding rather than the coast — FEMA's model puts a flood event here at about 3.2 times a year. County-wide, not parcel-specific: FEMA's real flood-zone map is queried live, never shipped as a download.
Warren County's flood-insurance compliance gap
Out of 45 homes FEMA counts inside Warren County's mapped flood zone, 2 carry the flood policy federal law requires there — 4.4% compliance, short of full coverage. Across all residential structures in Warren County, not just the ones FEMA mandates, 0.1% carry an NFIP policy — most flood damage nationally happens outside the mapped high-risk zone, so that broader number matters too.
How Warren County compares nationally
Warren County sits at rank 2779 of 3144 counties on FEMA's flood hazard scale (1 is worst) and rank 2540 of 3144 by population (1 is biggest). Warren County, Indiana is home to about 8,451 people across 364.685 square miles of land.
What to do next if you own or are buying in Warren County
2 of Warren County's 4,318 residential structures carry flood coverage of some kind, per FEMA's latest count — useful context, not a substitute for checking one parcel.
More on how this number was built
The methodology guide shows exactly which FEMA and Census tables feed Warren 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.