In which county is ZIP code 78140 located?

ZIP 78140 is listed under Gonzales, TX.

When was this page updated?

This page was updated on 2026-01-08.

ZIP Code 78140: Nixon, TX

ZIP: 78140

County: Gonzales

Coordinates: 29.30160, -97.75290

ZIP Type: Standard

Time Zone: Central Time (CT)

Get a reliable snapshot of the Nixon, TX postal area 78140. This page summarizes county, coordinates, and local facts to help with services and location research.

Primary City	Nixon
ZIP Code	78140
County	Gonzales
State	TX
Latitude / Longitude	29.30160, -97.75290
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 78140 (not an exact boundary).

Geographic & Administrative Context

The geographic center of ZIP code 78140 is approximately 29.30160 (latitude) and -97.75290 (longitude). This location sits within Gonzales, contributing to regional planning across TX.

Local Coverage Notes

ZIP codes can cover multiple neighborhoods and unincorporated areas. Use ZIP 78140 for mail delivery and general location reference in Gonzales, TX.

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

Related ZIP Codes (Nearby)

Explore other postal codes near Nixon within TX.

Frequently Asked Questions

What is the primary city for ZIP code 78140?

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

In which county is 78140 located?

ZIP code 78140 is situated within Gonzales, TX.

What are the coordinates for 78140?

The approximate center point is 29.30160 (Latitude) and -97.75290 (Longitude).

Is ZIP code 78140 active?

This page lists ZIP 78140 as Listed based on the latest refresh date shown above.

Does ZIP 78140 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