ZIP Code 70556

70556 is one of Louisiana's ZIP codes, delivering to addresses in Mermentau, Acadia Parish.

City: Mermentau
Parish: Acadia Parish
State: Louisiana
Prefix: 705xx

Where this code sits

70556 is part of the 705xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Mermentau.

Mermentau Louisiana ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 70556 delivers to without sharing its boundary.

337 Area code 337

ZIP codes nearest 70556

The ZIP codes whose reference points sit closest to 70556.
ZIP code	Distance	Delivers to
ZIP code 70546	5.6 mi	Jennings, LA
ZIP code 70537	5.8 mi	Evangeline, LA
ZIP code 70531	6.2 mi	Egan, LA
ZIP code 70534	6.5 mi	Estherwood, LA
ZIP code 70559	6.9 mi	Morse, LA
ZIP code 70549	9.3 mi	Lake Arthur, LA
ZIP code 70581	11 mi	Roanoke, LA
ZIP code 70543	11 mi	Iota, 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 70556, plotted from its record coordinates.

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

Scope ZIP code 70556. 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.