ZIP Code 70057

70057 is one of Louisiana's ZIP codes, delivering to addresses in Hahnville, St. Charles Parish.

City: Hahnville
Parish: St. Charles Parish
State: Louisiana
Prefix: 700xx

Where this code sits

70057 is part of the 700xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Hahnville.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 70057 delivers to without sharing its boundary.

985 Area code 985

ZIP codes nearest 70057

The ZIP codes whose reference points sit closest to 70057.
ZIP code	Distance	Delivers to
ZIP code 70078	1.7 mi	New Sarpy, LA
ZIP code 70047	2.4 mi	Destrehan, LA
ZIP code 70079	2.8 mi	Norco, LA
ZIP code 70070	3.7 mi	Luling, LA
ZIP code 70039	4.9 mi	Boutte, LA
ZIP code 70087	5.8 mi	Saint Rose, LA
ZIP code 70080	6.4 mi	Paradis, LA
ZIP code 70031	7.1 mi	Ama, 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 70057, plotted from its record coordinates.

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

Scope ZIP code 70057. 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.