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Round Rock, Texas, a vibrant suburban city located just 20 miles north of Austin, boasts a unique geographical landscape and a diverse array of zip codes that reflect its dynamic growth and development. Nestled in both Williamson and Travis counties, this thriving community has experienced remarkable expansion, particularly since the late 1990s when Dell Corporation established its headquarters in the area.
Understanding Round Rock’s ZIP Code Landscape
| ZIP Code | Type | Population Coverage | Unique Characteristics |
|---|---|---|---|
| 78664 | Standard | 33.61% (60,287 residents) | Includes Old Round Rock and Three Point area |
| 78665 | Standard | 34.33% (61,577 residents) | Central Round Rock district |
| 78680 | P.O. Box | 0% population | Postal operations zone |
| 78681 | Standard | 32.06% (57,503 residents) | Partially overlaps with Austin postal area |
| 78682 | Unique | 0% population | Dedicated to Dell Computers headquarters |
| 78683 | P.O. Box | 0% population | Additional postal operations zone |
Geographic Distribution and Population Insights
Round Rock’s zip codes are strategically distributed across the city, serving different neighborhoods and demographic segments. The 78664 and 78665 zip codes represent the core residential areas, accounting for nearly 68% of the city’s population. These zones encompass diverse neighborhoods ranging from established communities to newer developments.
Demographic Breakdown
The city’s population, as of the 2020 census, stands at 119,468 residents. Interestingly, the zip codes reveal fascinating demographic nuances:
- 29.1% of residents identify as Hispanic or Latino
- 15.5% were born outside the United States
- Average household size is 2.6 persons
- Gender distribution is nearly balanced: 49.1% male and 50.9% female
Economic and Technological Significance
The 78682 unique zip code, dedicated to Dell Computers, symbolizes Round Rock’s transformation from a rural community to a technological hub. Dell employs approximately 16,000 people at its Round Rock facilities, significantly contributing to the city’s economic landscape.
Postal Service Complexity
Round Rock’s postal infrastructure is intricate, featuring:
- 3 Standard ZIP Codes
- 2 P.O. Box ZIP Codes
- 1 Unique ZIP Code
🏠 Note: While some zip codes may have zero population, they serve critical postal and administrative functions for the city.
The city's strategic location near the Balcones Escarpment, with terrain varying from flat Blackland Prairie to hilly Hill Country landscapes, adds to its unique geographical character. This diversity is subtly reflected in its zip code distribution, representing different neighborhood characteristics and development phases.
Which ZIP Code Covers Most of Round Rock?
+The 78665 ZIP code covers the largest population percentage at 34.33%, representing the central part of Round Rock.
Are All Round Rock ZIP Codes Residential?
+No, some ZIP codes like 78680 and 78682 are dedicated to postal operations and specific business entities like Dell Computers.
Do Round Rock ZIP Codes Cross County Lines?
+Yes, Round Rock spans both Williamson and Travis counties, which is reflected in its diverse zip code distribution.
As Round Rock continues to evolve, its zip codes will undoubtedly reflect the city’s ongoing growth, technological advancement, and demographic shifts. The postal landscape here is more than just numbers—it’s a dynamic representation of a thriving Texan suburban community.
