In which county is ZIP code 78674 located?

ZIP 78674 is listed under Williamson County, TX.

When was this page updated?

This page was updated on 2026-01-08.

ZIP Code 78674: Weir, TX

ZIP: 78674

County: Williamson County

Coordinates: 30.67470, -97.59290

ZIP Type: Standard

Time Zone: Central Time (CT)

Get a reliable snapshot of the Weir, TX postal area 78674. This page summarizes county, coordinates, and local facts to help with services and location research.

Primary City	Weir
ZIP Code	78674
County	Williamson County
State	TX
Latitude / Longitude	30.67470, -97.59290
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 78674 (not an exact boundary).

Geographic & Administrative Context

Coordinates for 78674 are listed as 30.67470 / -97.59290, useful for GPS and service checks in and around Weir, TX.

Local Coverage Notes

ZIP codes can cover multiple neighborhoods and unincorporated areas. Use ZIP 78674 for mail delivery and general location reference in Williamson County, TX.

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

Related ZIP Codes (Nearby)

Explore other postal codes near Weir within TX.

Frequently Asked Questions

What is the primary city for ZIP code 78674?

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

In which county is 78674 located?

ZIP code 78674 is situated within Williamson County, TX.

What are the coordinates for 78674?

The approximate center point is 30.67470 (Latitude) and -97.59290 (Longitude).

Is ZIP code 78674 active?

This page lists ZIP 78674 as Listed based on the latest refresh date shown above.

Does ZIP 78674 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