ZIP Code 78663: Round Mountain, TX

ZIP: 78663
County: Blanco
Coordinates: 30.44290, -98.43650
ZIP Type: Standard
Time Zone: Central Time (CT)

This profile provides an in-depth look at ZIP code 78663, serving Round Mountain in TX. It lies in Blanco and supports delivery, planning, and address verification.

Primary CityRound Mountain
ZIP Code78663
CountyBlanco
StateTX
Latitude / Longitude30.44290, -98.43650
ZIP TypeStandard
Time ZoneCentral Time (CT)
Data Updated2026-01-08
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Maps & Useful Links

Open in Maps: Google Maps · OpenStreetMap
These links show the approximate center point for ZIP 78663 (not an exact boundary).

Geographic & Administrative Context

The geographic center of ZIP code 78663 is approximately 30.44290 (latitude) and -98.43650 (longitude). This location sits within Blanco, contributing to regional planning across TX.

Local Coverage Notes

ZIP codes can cover multiple neighborhoods and unincorporated areas. Use ZIP 78663 for mail delivery and general location reference in Blanco, TX.
Coverage may include nearby neighborhoods and adjacent unincorporated areas commonly associated with Round Mountain.

Related ZIP Codes (Nearby)

Explore other postal codes near Round Mountain within TX.

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Frequently Asked Questions

What is the primary city for ZIP code 78663?
The primary city for this ZIP code is Round Mountain, located in TX.
In which county is 78663 located?
ZIP code 78663 is situated within Blanco, TX.
What are the coordinates for 78663?
The approximate center point is 30.44290 (Latitude) and -98.43650 (Longitude).
Is ZIP code 78663 active?
This page lists ZIP 78663 as Listed based on the latest refresh date shown above.
Does ZIP 78663 cover multiple areas?
Yes. Many ZIP codes cover multiple neighborhoods or nearby areas. For exact boundaries, use official mapping tools.
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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