Livingston Parish, LA Flood Zone & Flood Risk Data
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.