In which county is ZIP code 70403 located?

ZIP 70403 is listed under Tangipahoa, LA.

When was this page updated?

This page was updated on 2026-01-08.

ZIP Code 70403: Hammond, LA

ZIP: 70403

County: Tangipahoa

Coordinates: 30.49110, -90.46970

ZIP Type: Standard

Time Zone: Central Time (CT)

This profile provides an in-depth look at ZIP code 70403, serving Hammond in LA. It lies in Tangipahoa and supports delivery, planning, and address verification.

Primary City	Hammond
ZIP Code	70403
County	Tangipahoa
State	LA
Latitude / Longitude	30.49110, -90.46970
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 70403 (not an exact boundary).

Geographic & Administrative Context

For mapping and verification, 70403 is commonly represented around 30.49110, -90.46970. These coordinates help identify the general area within Tangipahoa, LA.

Local Coverage Notes

ZIP codes can cover multiple neighborhoods and unincorporated areas. Use ZIP 70403 for mail delivery and general location reference in Tangipahoa, LA.

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

Related ZIP Codes (Nearby)

Explore other postal codes near Hammond within LA.

Frequently Asked Questions

What is the primary city for ZIP code 70403?

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

In which county is 70403 located?

ZIP code 70403 is situated within Tangipahoa, LA.

What are the coordinates for 70403?

The approximate center point is 30.49110 (Latitude) and -90.46970 (Longitude).

Is ZIP code 70403 active?

This page lists ZIP 70403 as Listed based on the latest refresh date shown above.

Does ZIP 70403 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