Round Rock ZIP Codes

List of Zip Codes of Round Rock

The following table lists ZIP Codes associated with Round Rock, Texas, based on ZIP Code Tabulation Area (ZCTA) data from the U.S. Census Bureau.

S.N.	Zip Code	Latitude	Longitude	County	Population	Density
1	78664	30.50461	-97.64583	Williamson	62,272	1447.3
2	78665	30.55038	-97.63681	Williamson	64,087	1027.7
3	78681	30.5355	-97.71981	Williamson	58,531	974.6

About Round Rock Texas Zip Codes

The city of Round Rock in Texas (TX) is served by approximately 3 ZIP Codes. These codes cover residential neighborhoods, business districts, and surrounding localities that use the city name in their mailing address.

Based on ZIP-level population estimates, the combined population covered by these ZIP Codes is around 184,890 people. Population density can vary significantly from one ZIP Code to another, reflecting the mix of dense urban blocks, commercial corridors, and lower-density residential areas.

The ZIP Codes associated with Round Rock fall within county jurisdictions such as Williamson. Each county manages local services, land use, and administration for the areas corresponding to its ZIP Codes.

Most ZIP codes for Round Rock, Texas follow the America/Chicago time zone.

Round Rock ZIP Codes

List of Zip Codes of Round Rock

About Round Rock Texas Zip Codes

Texas Cities ZIP Codes

Solutions

2000+ Our clients are subscribe Around the World