ZIP Code 78664: Round Rock, Texas
ZIP code 78664 is assigned to Round Rock, Texas, and lies within Williamson County. Its reference point is at latitude 30.5145 and longitude -97.668 (30°30'52.2"N 97°40'04.8"W).
Location Overview of ZIP Code 78664
Round Rock, TX has 5 ZIP codes in our directory. Besides 78664, they include 78680, 78681, 78682, 78683.
Across Williamson County there are 25 ZIP codes listed, and Texas has 2,742 in total.
The nearest listed ZIP code is 78681 in Round Rock, TX, about 2.3 mi to the west.
| ZIP code | 78664 |
|---|---|
| City | Round Rock |
| County | Williamson County |
| State | Texas (TX) |
| Latitude | 30.5145 |
| Longitude | -97.668 |
| DMS | 30°30'52.2"N 97°40'04.8"W |
| Nearest ZIP | 78681 (Round Rock, 2.3 mi) |
Map of ZIP Code 78664
Map centered on 30.5145, -97.668. The pin marks the ZIP code's reference point, not its boundary.
Video: Round Rock, TX
A walking tour of Round Rock, Texas (things to do downtown) — by David Bridwell Music · Watch on YouTube
ZIP Codes Near 78664
These 15 ZIP codes have the closest reference points to 78664, measured in a straight line.
Nearby Cities and Towns
The closest communities to ZIP code 78664, measured in a straight line from its reference point, are Sandy, TX (2.5 mi northeast), Austin, TX (4.8 mi west) and Pflugerville, TX (5.5 mi southeast). Distances are approximate and road distances will be longer.
- Sandy, TX – 2.5 mi northeast
- Austin, TX – 4.8 mi west
- Pflugerville, TX – 5.5 mi southeast
- Hutto, TX – 6.0 mi east
- Georgetown, TX – 8.2 mi north
- Cedar Park, TX – 9.3 mi west
Schools Near Round Rock, TX
Public school assignments in the United States are based on street address, so families in ZIP code 78664 should confirm their assigned school with the school district that serves Round Rock and Williamson County.
Searching nearby communities such as Sandy and Austin can widen the list of public, private and charter options. The links below open live Google Maps results centered on 78664.
Parks and Outdoor Recreation
Parks, trails and playgrounds around Round Rock, TX are easiest to find on the map above or with the searches below, which are centered on ZIP code 78664.
Hospitals and Healthcare
Hospitals, urgent care clinics and pharmacies serving Round Rock, TX can be found with the searches below. In a medical emergency, call 911.
Residents of ZIP code 78664 may also use facilities in nearby Sandy, Austin and Pflugerville.
Shopping and Dining in Round Rock
Restaurants, grocery stores and shopping centers in and around ZIP code 78664 are listed in the Google Maps searches below, with current hours and reviews.
Libraries and Historical Places
Public libraries, museums and historic sites near Round Rock, Texas can be found with the searches below, which are centered on ZIP code 78664.
To research local history, try searching for Williamson County records and archives along with the name Round Rock.
Roads, Rivers and Lakes
From ZIP code 78664, Sandy lies about 2.5 mi to the northeast, Austin lies about 4.8 mi to the west, Pflugerville lies about 5.5 mi to the southeast, Hutto lies about 6.0 mi to the east and Georgetown lies about 8.2 mi to the north. Use the directions link for turn-by-turn routes and road names.
Rivers, lakes and other water features near Round Rock show up on the map above, or you can search for them directly.
Frequently Asked Questions About ZIP Code 78664
Photo & Video Credits
- Video: “A walking tour of Round Rock, Texas (things to do downtown)” by David Bridwell Music, embedded from YouTube. All rights belong to the creator.
Data for ZIP code 78664 comes from a public U.S. postal code dataset and is provided for general reference. Always confirm mailing details with the U.S. Postal Service.