charger Round Rock, Texas ZIP Codes
Round Rock, Texas includes multiple ZIP Codes covering various neighborhoods and districts. Use this page to find ZIP Code ranges, postal information, and local area insights for Round Rock.
| ZIP Code | Type | City | County | County Code |
|---|---|---|---|---|
| 78664 | Standard | Round Rock | Williamson | 48491 |
| 78665 | Standard | Round Rock | Williamson | 48491 |
| 78681 | Standard | Round Rock | Williamson | 48491 |
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