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ZIP code 78664
Round Rock, TX · Williamson County
About ZIP code 78664
- ZIP code 78664 is in Round Rock, Williamson County, Texas.
- About 62,060 people live in it, which is 1,442.4 people per square mile.
- It also reaches into Travis County.
- Time zone: Central Standard Time.
- The middle of the ZIP code is at 30.505, -97.646.
A ZIP code is a mail delivery area, not a town border, and one ZIP code can cover parts of several towns. To check a single address, use the US Postal Service lookup.
Round Rock, TX
ZIP code 78664 is the post office name for Round Rock, TX. 127,786 people live in Round Rock. Typical household income is $99,287. A typical home costs $418,600.
- Stronger than most towns on: Home internet and working from home, Diversity & community and Walkability.
- Weaker than most towns on: Cost of living, Property taxes and Clean air and low disaster risk.
Other ZIP codes in Round Rock
Nearby ZIP codes
- 78665 Round Rock · 66,171 people
- 78728 Austin · 26,777 people
- 78681 Round Rock · 56,691 people
- 78660 Pflugerville · 124,834 people
- 78717 Austin · 37,262 people
- 78727 Austin · 29,958 people
- 78634 Hutto · 46,413 people
- 78729 Austin · 30,460 people
ZIP code list from SimpleMaps US Zips. Population is a US Census Bureau estimate. These are estimates, so check official sources before you decide.