In which county is ZIP code 78628 located?

ZIP 78628 is listed under Williamson County, TX.

When was this page updated?

This page was updated on 2026-01-08.

ZIP Code 78628: Georgetown, TX

ZIP: 78628

County: Williamson County

Coordinates: 30.64110, -97.75110

ZIP Type: Standard

Time Zone: Central Time (CT)

Explore detailed information for ZIP code 78628 in Georgetown, TX. We include verified county details for Williamson County plus key geographic references used for mapping and logistics.

Primary City	Georgetown
ZIP Code	78628
County	Williamson County
State	TX
Latitude / Longitude	30.64110, -97.75110
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 78628 (not an exact boundary).

Geographic & Administrative Context

Coordinates for 78628 are listed as 30.64110 / -97.75110, useful for GPS and service checks in and around Georgetown, TX.

Local Coverage Notes

ZIP codes can cover multiple neighborhoods and unincorporated areas. Use ZIP 78628 for mail delivery and general location reference in Williamson County, TX.

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

Related ZIP Codes (Nearby)

Explore other postal codes near Georgetown within TX.

Frequently Asked Questions

What is the primary city for ZIP code 78628?

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

In which county is 78628 located?

ZIP code 78628 is situated within Williamson County, TX.

What are the coordinates for 78628?

The approximate center point is 30.64110 (Latitude) and -97.75110 (Longitude).

Is ZIP code 78628 active?

This page lists ZIP 78628 as Listed based on the latest refresh date shown above.

Does ZIP 78628 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