In which county is ZIP code 77979 located?

ZIP 77979 is listed under Calhoun, TX.

When was this page updated?

This page was updated on 2026-01-08.

ZIP Code 77979: Port Lavaca, TX

ZIP: 77979

County: Calhoun

Coordinates: 28.60110, -96.62590

ZIP Type: Standard

Time Zone: Central Time (CT)

Get a reliable snapshot of the Port Lavaca, TX postal area 77979. This page summarizes county, coordinates, and local facts to help with services and location research.

Primary City	Port Lavaca
ZIP Code	77979
County	Calhoun
State	TX
Latitude / Longitude	28.60110, -96.62590
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 77979 (not an exact boundary).

Geographic & Administrative Context

Coordinates for 77979 are listed as 28.60110 / -96.62590, useful for GPS and service checks in and around Port Lavaca, TX.

Local Coverage Notes

ZIP codes can cover multiple neighborhoods and unincorporated areas. Use ZIP 77979 for mail delivery and general location reference in Calhoun, TX.

Some addresses near Port Lavaca may share this ZIP due to delivery routing and local service areas.

Related ZIP Codes (Nearby)

Explore other postal codes near Port Lavaca within TX.

Frequently Asked Questions

What is the primary city for ZIP code 77979?

The primary city for this ZIP code is Port Lavaca, located in TX.

In which county is 77979 located?

ZIP code 77979 is situated within Calhoun, TX.

What are the coordinates for 77979?

The approximate center point is 28.60110 (Latitude) and -96.62590 (Longitude).

Is ZIP code 77979 active?

This page lists ZIP 77979 as Listed based on the latest refresh date shown above.

Does ZIP 77979 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