ZIP Code 70380

70380 is one of Louisiana's ZIP codes, delivering to addresses in Morgan City, St. Mary Parish.

City: Morgan City
Parish: St. Mary Parish
State: Louisiana
Prefix: 703xx

Where this code sits

70380 is part of the 703xx range, the group of codes handled by one mail processing centre. Morgan City is served by 2 ZIP codes in total; the full list, with the parish each falls in, is on the Morgan City page.

Morgan City Louisiana ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 70380 delivers to without sharing its boundary.

ZIP codes nearest 70380

The ZIP codes whose reference points sit closest to 70380.
ZIP code	Distance	Delivers to
ZIP code 70381	0.4 mi	Morgan City, LA
ZIP code 70342	0.9 mi	Berwick, LA
ZIP code 70392	1.0 mi	Patterson, LA
ZIP code 70340	10 mi	Amelia, LA
ZIP code 70522	11 mi	Centerville, LA
ZIP code 70540	13 mi	Garden City, LA
ZIP code 70538	16 mi	Franklin, LA
ZIP code 70356	17 mi	Gibson, 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 70380, plotted from its record coordinates.

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

Scope ZIP code 70380. 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.