ZIP Code 70057 – Hahnville, LA
Hahnville, Louisiana · St. Charles Parish · Central time
| ZIP code | 70057 |
|---|---|
| City | Hahnville |
| State | Louisiana |
| County | St. Charles Parish |
| Population | 4,122 |
| Time zone | Central · local time |
| ZIP type | Standard (has a Census ZCTA area) |
| Land area | 44.52 sq mi |
| Center (lat, long) | 29.9622, -90.4642 |
Area codes in this area
These are the area codes that most often serve ZIP 70057 (including overlays). The exact area code depends on the phone number — landlines, mobiles and overlays can differ even on the same street.
Map
Nearby ZIP codes
About ZIP 70057
ZIP code 70057 is assigned to Hahnville, Louisiana. It lies in St. Charles Parish. Its Census area covers about 44.52 square miles of land. The closest neighboring ZIP is 70079 (Norco), about 4.1 miles away.
Every address in 70057 also has a 4-digit add-on code (ZIP+4) that points to a smaller delivery area. Use the box above to find it.
Sources: US Census Bureau (ZCTA, county relationship files), GeoNames (CC BY 4.0), NANPA via NumberResearch.org (CC BY 4.0). Map © OpenStreetMap contributors. ZIP areas are approximate. Population: U.S. Census Bureau, ACS 5-year estimates, 2024 (ZCTA). Data sources