ZIP Code 78681

Zip Code: 78681
Type: Standard
Official USPS city name: Round Rock
Official USPS State Code: TX
Official State Name: Texas
ZCTA: TRUE
Population: 58155.0
Density: 1030.7
Primary Official County Code: 48491
Primary Official County Name: Williamson
Official County Name: Williamson
Official County Code: 48491
Imprecise: FALSE
Military: FALSE
Timezone: America/Chicago (23:59 PM Tuesday, June 03 2025-06-03 (GMT -0500))
Geo Point: 30.53328, -97.7247