Union Parish, LA flood risk explained
Flood hazard in Union Parish sits at the 57.8th national percentile, below the national norm for flood hazard; driven by inland rivers and flash flooding rather than the coast — FEMA's model puts a flood event here at about 1.2 times a year. County-wide, not parcel-specific: FEMA's real flood-zone map is queried live, never shipped as a download.
Union Parish's flood-insurance compliance gap
Out of 637 homes FEMA counts inside Union Parish's mapped flood zone, 219 carry the flood policy federal law requires there — 34.4% compliance, short of full coverage. Looking beyond the mandated zone, 2.7% of all residential structures in Union Parish carry flood coverage voluntarily or otherwise — relevant because most NFIP claims nationally come from outside the mapped SFHA.
How Union Parish compares nationally
Among the 3144 US counties FEMA scores for flood hazard, Union Parish ranks 1391 — 1 being the highest hazard nationally — and 1793 by population among all 3144 counties covered here, where 1 is the largest. Union Parish, Louisiana covers 876.913 square miles and counts roughly 20,617 residents.
Your street may differ from Union Parish's average
FEMA counts 9,520 residential structures in Union Parish overall, 256 of them carrying some form of NFIP coverage — but a lender or insurer cares about one parcel, not that county total.
Where Union 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.