Berwick Louisiana ZIP Codes
Berwick holds a single ZIP code.
Every ZIP code in Berwick
| ZIP code | Parish |
|---|---|
| 70342 | St. Mary Parish |
We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP. USPS delivery-type products are licensed, and no clean-rights source maps ZIP codes to neighbourhoods — so the Berwick codes above are listed without a column we would have to invent.
Scope every ZIP code recorded for Berwick. Source GeoNames US postal codes (2026-07 postal dump) and Census 2024 county Gazetteer (2024 Gazetteer). Updated . ZIP codes are delivery-route groupings, not areas; the boundaries implied by any ZIP map are approximations.
How these codes cluster
Every Berwick ZIP code begins 703. Those first three digits identify the sectional center facility that processes mail for this part of Louisiana. Statewide that range covers 38 ZIP codes, so Berwick accounts for 3% of it.
Every Louisiana ZIP prefix and the region it covers →
Area codes covering Berwick
ZIP codes and area codes are separate systems — one routes mail, the other routes calls — and they do not share boundaries. The code below serves the same ground Berwick occupies.
Berwick Louisiana area codes in full →
Where Berwick's ZIP codes sit
- Reference points and footprint
- Not an official NANPA boundary
- Not a USPS delivery area
Cities near Berwick
| City | Distance | ZIP codes |
|---|---|---|
| Morgan City Louisiana ZIP codes | 2.7 mi | 2 ZIP codes |
| Patterson Louisiana ZIP codes | 4.5 mi | 1 ZIP code |
| Franklin Louisiana ZIP codes | 18 mi | 1 ZIP code |
| Napoleonville Louisiana ZIP codes | 21 mi | 1 ZIP code |
| Baldwin Louisiana ZIP codes | 22 mi | 1 ZIP code |
| Thibodaux Louisiana ZIP codes | 26 mi | 3 ZIP codes |
| Jeanerette Louisiana ZIP codes | 30 mi | 1 ZIP code |
| Donaldsonville Louisiana ZIP codes | 31 mi | 1 ZIP code |
Straight-line distance between place reference points, not driving distance.