Lafayette Parish, LA flood risk explained
Flood hazard in Lafayette Parish sits at the 93th national percentile, a middling flood hazard by national standards; driven by inland rivers and flash flooding rather than the coast — FEMA's model puts a flood event here at about 1.8 times a year. County-wide, not parcel-specific: FEMA's real flood-zone map is queried live, never shipped as a download.
Mandatory flood insurance compliance in Lafayette Parish
Out of 16,496 homes FEMA counts inside Lafayette Parish's mapped flood zone, 7,738 carry the flood policy federal law requires there — 46.9% compliance, short of full coverage. Looking beyond the mandated zone, 19% of all residential structures in Lafayette Parish carry flood coverage voluntarily or otherwise — relevant because most NFIP claims nationally come from outside the mapped SFHA.
Where Lafayette Parish ranks
Among the 3144 US counties FEMA scores for flood hazard, Lafayette Parish ranks 238 — 1 being the highest hazard nationally — and 289 by population among all 3144 counties covered here, where 1 is the largest. Lafayette Parish, Louisiana is home to about 254,241 people across 268.833 square miles of land.
Checking a specific address in Lafayette Parish
FEMA counts 84,455 residential structures in Lafayette Parish overall, 16,022 of them carrying some form of NFIP coverage — but a lender or insurer cares about one parcel, not that county total.
Where Lafayette Parish's figures come from
Every figure on this page traces to a named FEMA dataset, documented in the methodology guide. If you're unsure why any of this insurance requirement exists at all, the SFHA explainer covers it from first principles.