Postal Codes for Round Rock, Texas
The postal codes for Round Rock, Texas, United States (6 codes, e.g. 78664). With map location and coordinates.
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The postal codes for Round Rock, Texas, United States (6 codes):
| Postal code | Place | County / area | Coordinates |
|---|---|---|---|
| 78664 | Round Rock | Williamson | 30.515, -97.668 |
| 78665 | Round Rock | Williamson | 30.515, -97.668 |
| 78680 | Round Rock | Williamson | 30.657, -97.603 |
| 78681 | Round Rock | Williamson | 30.508, -97.679 |
| 78682 | Round Rock | Williamson | 30.657, -97.603 |
| 78683 | Round Rock | Williamson | 30.657, -97.603 |
Frequently asked questions
What is the postal code of Round Rock?
Round Rock has 6 postal codes; the first is 78664. They are all listed above with their areas.
Why does Round Rock have more than one postal code?
Larger towns and cities are split into several postal-code areas, each serving a different neighbourhood, PO-box range or large organisation.