Livingston Parish, LA: flood risk, in FEMA's own numbers
On FEMA's National Risk Index, Livingston Parish scores at the 94.9th percentile for flood hazard, rated "Relatively High" — well above the national norm for flood hazard. The hazard here is driven by inland rivers and flash flooding rather than the coast — FEMA's model puts a flood event here at about once every 2 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 Livingston Parish
Homes with a federally backed mortgage inside Livingston Parish's mapped high-risk flood zone (the Special Flood Hazard Area, or SFHA) are legally required to carry an NFIP flood policy. In practice, 38.6% of them do — 9,813 active policies against 25,438 structures FEMA counts in that zone, leaving a real compliance gap. Looking beyond the mandated zone, 26.6% of all residential structures in Livingston Parish carry flood coverage voluntarily or otherwise — relevant because most NFIP claims nationally come from outside the mapped SFHA.
Where Livingston Parish ranks
Among the 3144 US counties FEMA scores for flood hazard, Livingston Parish ranks 174 — 1 being the highest hazard nationally — and 457 by population among all 3144 counties covered here, where 1 is the largest. Livingston Parish, Louisiana covers 648.14 square miles and counts roughly 152,886 residents.
Checking a specific address in Livingston Parish
13,708 of Livingston Parish's 51,509 residential structures carry flood coverage of some kind, per FEMA's latest count — useful context, not a substitute for checking one parcel.
Where Livingston 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.