Round Rock Texas is covered by a total of 6 ZIP Codes. There are also 3 ZIP Codes that overlap Round Rock but have a different postal city name. The ZIP Codes in Round Rock range from 78626 to 78728. Of the ZIP codes within or partially within Round Rock there are 3 Standard ZIP Codes, 1 Unique ZIP Codes and 2 PO Box ZIP Codes. The total population of ZIP Codes in Round Rock is 181568.
Click on the ZIP Codes in the interactive map to view more information. The map control in the upper right corner can be used to toggle map layers on and off. The red outline is the border of Round Rock and can be turned on and off. Each type of postal code can also be turned on and off.
| ZIP Code | ZIP Code City/Town | ZIP Code Type | |||
|---|---|---|---|---|---|
| Georgetown | Standard | |||
| Pflugerville | Standard | |||
| Round Rock | Standard | |||
| Round Rock | Standard | |||
| Round Rock | PO Box | |||
| Round Rock | Standard | |||
| Round Rock | Unique | |||
| Round Rock | PO Box | |||
| Austin | Standard |