ZIP Code 70374

70374 is one of Louisiana's ZIP codes, delivering to addresses in Lockport, Lafourche Parish.

City: Lockport
Parish: Lafourche Parish
State: Louisiana
Prefix: 703xx

Where this code sits

70374 is part of the 703xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Lockport.

Lockport Louisiana ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 70374 delivers to without sharing its boundary.

985 Area code 985

ZIP codes nearest 70374

The ZIP codes whose reference points sit closest to 70374.
ZIP code	Distance	Delivers to
ZIP code 70373	4.8 mi	Larose, LA
ZIP code 70355	6.8 mi	Gheens, LA
ZIP code 70375	8.3 mi	Mathews, LA
ZIP code 70345	9.0 mi	Cut Off, LA
ZIP code 70343	11 mi	Bourg, LA
ZIP code 70377	11 mi	Montegut, LA
ZIP code 70394	12 mi	Raceland, LA
ZIP code 70030	14 mi	Des Allemands, LA

Straight-line distance between place reference points, not driving distance. Where a place has no Census Gazetteer point, its postal centroid is used instead.

Each point is the reference point for 70374, plotted from its record coordinates.

Reference points and footprint
Not an official NANPA boundary
Not a USPS delivery area

Scope ZIP code 70374. Source GeoNames US postal codes (2026-07 postal dump) and Census 2024 county Gazetteer (2024 Gazetteer). Updated 15 July 2026. A ZIP code is a set of delivery routes, not an area; the point shown is a record coordinate, not a centre.