Morgan City Louisiana ZIP Codes
Morgan City holds 2 ZIP codes, all inside one parish and one postal prefix.
Every ZIP code in Morgan City
| ZIP code | Parish |
|---|---|
| 70380 | St. Mary Parish |
| 70381 | 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We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP.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 Morgan City codes above are listed without a column we would have to invent.
Scope every ZIP code recorded for Morgan City. 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 Morgan City 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 Morgan City accounts for 5% of it.
Every Louisiana ZIP prefix and the region it covers →
Area codes covering Morgan City
ZIP codes and area codes are separate systems — one routes mail, the other routes calls — and they do not share boundaries. The codes below serve the same ground Morgan City occupies.
Morgan City Louisiana area codes in full →
Where Morgan City's ZIP codes sit
- Reference points and footprint
- Not an official NANPA boundary
- Not a USPS delivery area
Cities near Morgan City
| City | Distance | ZIP codes |
|---|---|---|
| Berwick Louisiana ZIP codes | 2.7 mi | 1 ZIP code |
| Patterson Louisiana ZIP codes | 7.2 mi | 1 ZIP code |
| Napoleonville Louisiana ZIP codes | 19 mi | 1 ZIP code |
| Franklin Louisiana ZIP codes | 20 mi | 1 ZIP code |
| Thibodaux Louisiana ZIP codes | 23 mi | 3 ZIP codes |
| Baldwin Louisiana ZIP codes | 24 mi | 1 ZIP code |
| Donaldsonville Louisiana ZIP codes | 29 mi | 1 ZIP code |
| Houma Louisiana ZIP codes | 30 mi | 4 ZIP codes |
Straight-line distance between place reference points, not driving distance.