ZIP 70345
Lafourche Parish, LA

The heaviest year

1985 is the heaviest year on file: 305 paid claims, 30.3% of the ZIP's total. That one year accounts for more than a quarter of the ZIP's entire record. The largest named event in the record is Hurricane Juan, with 302 claims.

111 of those claims — 11.0% — were filed since 2017. The bulk of this ZIP's record is older than that.

Named event	Paid claims	Share of record
Hurricane Juan	302	30.0%
Hurricane Gustav	230	22.8%
Hurricane Katrina	121	12.0%

Where the claims sat on the map

Of the 855 claims here that record a rated flood zone, 6 — 0.7% — were on properties rated outside the mapped high-risk area, in a B, C or X zone. Claims here concentrate inside the mapped high-risk area, which is what the maps intend. Flood insurance is not required outside the high-risk zone, and most properties there do not carry it — so these counts come from the minority who did.

The water near this ZIP

The closest gauges publishing official flood thresholds are Gulf Intracoastal Waterway at Bayou Lafourche at Larose (10.0 mi), Barataria Bay and Waterway at 13NNE Grand Isle (18.1 mi) and Champagne Bay near Grand Isle (19.0 mi). A gauge describes one point on one river — it will not see street drainage, sewer backup, storm surge or flash flooding.

Read current gauge conditions for 70345 →

What this does not say

These are paid National Flood Insurance Program claims, nothing more. They count insured properties whose owners filed and were paid, so they are a floor on how often this ZIP has flooded — never a measure of how likely it is to flood next. Uninsured flooding leaves no trace here at all.

The figures are aggregates published by FEMA. No individual claim, address or policyholder appears on this page or in the data behind it. Nothing here is a forecast, a warning, or advice about insurance.