ZIP Code 70056

70056 is one of Louisiana's ZIP codes, delivering to addresses in Gretna, Jefferson Parish.

City: Gretna
Parish: Jefferson Parish
State: Louisiana
Prefix: 700xx

Where this code sits

70056 is part of the 700xx range, the group of codes handled by one mail processing centre. Gretna is served by 3 ZIP codes in total; the full list, with the parish each falls in, is on the Gretna page.

Gretna Louisiana ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 70056 delivers to without sharing its boundary.

504 Area code 504

ZIP codes nearest 70056

The ZIP codes whose reference points sit closest to 70056.
ZIP code	Distance	Delivers to
ZIP code 70053	2.0 mi	Gretna, LA
ZIP code 70054	2.3 mi	Gretna, LA
ZIP code 70058	2.3 mi	Harvey, LA
ZIP code 70059	2.9 mi	Harvey, LA
ZIP code 70131	3.0 mi	New Orleans, LA
ZIP code 70158	3.3 mi	New Orleans, LA
ZIP code 70093	3.4 mi	Belle Chasse, LA
ZIP code 70114	3.5 mi	New Orleans, 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 70056, plotted from its record coordinates.

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

Scope ZIP code 70056. 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.