In which county is ZIP code 78340 located?

ZIP 78340 is listed under Refugio, TX.

When was this page updated?

This page was updated on 2026-01-08.

ZIP Code 78340: Bayside, TX

ZIP: 78340

County: Refugio

Coordinates: 28.09680, -97.21060

ZIP Type: Standard

Time Zone: Central Time (CT)

Explore detailed information for ZIP code 78340 in Bayside, TX. We include verified county details for Refugio plus key geographic references used for mapping and logistics.

Primary City	Bayside
ZIP Code	78340
County	Refugio
State	TX
Latitude / Longitude	28.09680, -97.21060
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 78340 (not an exact boundary).

Geographic & Administrative Context

Coordinates for 78340 are listed as 28.09680 / -97.21060, useful for GPS and service checks in and around Bayside, TX.

Local Coverage Notes

ZIP codes can cover multiple neighborhoods and unincorporated areas. Use ZIP 78340 for mail delivery and general location reference in Refugio, TX.

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

Related ZIP Codes (Nearby)

Explore other postal codes near Bayside within TX.

Frequently Asked Questions

What is the primary city for ZIP code 78340?

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

In which county is 78340 located?

ZIP code 78340 is situated within Refugio, TX.

What are the coordinates for 78340?

The approximate center point is 28.09680 (Latitude) and -97.21060 (Longitude).

Is ZIP code 78340 active?

This page lists ZIP 78340 as Listed based on the latest refresh date shown above.

Does ZIP 78340 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