In which county is ZIP code 78634 located?

ZIP 78634 is listed under Williamson County, TX.

When was this page updated?

This page was updated on 2026-01-08.

ZIP Code 78634: Hutto, TX

ZIP: 78634

County: Williamson County

Coordinates: 30.52570, -97.56720

ZIP Type: Standard

Time Zone: Central Time (CT)

Get a reliable snapshot of the Hutto, TX postal area 78634. This page summarizes county, coordinates, and local facts to help with services and location research.

Primary City	Hutto
ZIP Code	78634
County	Williamson County
State	TX
Latitude / Longitude	30.52570, -97.56720
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 78634 (not an exact boundary).

Geographic & Administrative Context

For mapping and verification, 78634 is commonly represented around 30.52570, -97.56720. These coordinates help identify the general area within Williamson County, TX.

Local Coverage Notes

ZIP codes can cover multiple neighborhoods and unincorporated areas. Use ZIP 78634 for mail delivery and general location reference in Williamson County, TX.

Coverage may include nearby neighborhoods and adjacent unincorporated areas commonly associated with Hutto.

Related ZIP Codes (Nearby)

Explore other postal codes near Hutto within TX.

Frequently Asked Questions

What is the primary city for ZIP code 78634?

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

In which county is 78634 located?

ZIP code 78634 is situated within Williamson County, TX.

What are the coordinates for 78634?

The approximate center point is 30.52570 (Latitude) and -97.56720 (Longitude).

Is ZIP code 78634 active?

This page lists ZIP 78634 as Listed based on the latest refresh date shown above.

Does ZIP 78634 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