78681 vs 78717 ZIP Codes
Round Rock, TX · Austin, TX
| Metric | 78681 | 78717 |
|---|---|---|
| City | Round Rock | Austin |
| County | Williamson | Williamson |
| State | Texas | Texas |
| Time zone | Central Time | Central Time |
| Population | 50,606 | 22,538 |
Demographic figures come from U.S. Census Bureau / ACS data included in the source ZIP dataset; many ZIP codes have no demographic figures in that dataset.