In which county is ZIP code 70057 located?

ZIP 70057 is listed under St. Charles, LA.

When was this page updated?

This page was updated on 2026-01-08.

ZIP Code 70057: Hahnville, LA

ZIP: 70057

County: St. Charles

Coordinates: 29.96680, -90.40820

ZIP Type: Standard

Time Zone: Central Time (CT)

Get a reliable snapshot of the Hahnville, LA postal area 70057. This page summarizes county, coordinates, and local facts to help with services and location research.

Primary City	Hahnville
ZIP Code	70057
County	St. Charles
State	LA
Latitude / Longitude	29.96680, -90.40820
ZIP Type	Standard
Time Zone	Central Time (CT)
Data Updated	2026-01-08

Maps & Useful Links

Open in Maps: Google Maps · OpenStreetMap

These links show the approximate center point for ZIP 70057 (not an exact boundary).

Geographic & Administrative Context

For mapping and verification, 70057 is commonly represented around 29.96680, -90.40820. These coordinates help identify the general area within St. Charles, LA.

Local Coverage Notes

ZIP codes can cover multiple neighborhoods and unincorporated areas. Use ZIP 70057 for mail delivery and general location reference in St. Charles, LA.

This ZIP may extend beyond the city core into nearby communities within St. Charles.

Related ZIP Codes (Nearby)

Explore other postal codes near Hahnville within LA.

Frequently Asked Questions

What is the primary city for ZIP code 70057?

The primary city for this ZIP code is Hahnville, located in LA.

In which county is 70057 located?

ZIP code 70057 is situated within St. Charles, LA.

What are the coordinates for 70057?

The approximate center point is 29.96680 (Latitude) and -90.40820 (Longitude).

Is ZIP code 70057 active?

This page lists ZIP 70057 as Listed based on the latest refresh date shown above.

Does ZIP 70057 cover multiple areas?

Yes. Many ZIP codes cover multiple neighborhoods or nearby areas. For exact boundaries, use official mapping tools.

Methodology & Data Notes

How we build this page: We generate this page from a structured ZIP dataset and refresh key fields (city, county, and coordinates) during scheduled updates. Coordinates represent an approximate center point, not an official boundary map.
Sources: Public ZIP reference datasets and geographic coordinate references. If you use specific sources (e.g., USPS, Census), list them on your About/Methodology page.

Page updated: 2026-01-08