ZIP Code 70346

70346 is one of Louisiana's ZIP codes, delivering to addresses in Donaldsonville, Ascension Parish.

City: Donaldsonville
Parish: Ascension Parish
State: Louisiana
Prefix: 703xx

Where this code sits

70346 is part of the 703xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Donaldsonville.

Donaldsonville Louisiana ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 70346 delivers to without sharing its boundary.

225 Area code 225

ZIP codes nearest 70346

The ZIP codes whose reference points sit closest to 70346.
ZIP code	Distance	Delivers to
ZIP code 70725	2.7 mi	Darrow, LA
ZIP code 70738	5.1 mi	Burnside, LA
ZIP code 70341	6.0 mi	Belle Rose, LA
ZIP code 70393	7.4 mi	Plattenville, LA
ZIP code 70734	8.2 mi	Geismar, LA
ZIP code 70391	8.6 mi	Paincourtville, LA
ZIP code 70086	9.6 mi	Saint James, LA
ZIP code 70778	9.9 mi	Sorrento, 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 70346, plotted from its record coordinates.

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

Scope ZIP code 70346. 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.