78746 ZIP Code: Austin, Texas
Official postal information, geographic coordinates, USPS post office locations, and US Census Bureau demographic metrics for postal code 78746 in Austin, TX.
Postal & Geographic Specifications USPS Data
Demographic & Economic Profile (US Census Bureau)
American Community Survey (ACS) 5-Year Verified Metrics
Editor's Neighborhood Insight & Local Context
ZIP code 78746 encompasses West Lake Hills and Rollingwood along the rolling Texas Hill Country, renowned for exemplary Eanes ISD schools and luxury estates overlooking Lake Austin.
Designated USPS Post Office Facility Mail & Parcel Drop-off
Mon-Fri 8:30 AM - 5:00 PM; Sat 9:00 AM - 1:00 PM
Geographic Map & Coordinates
30.2985, -97.8182Adjacent & Contiguous ZIP Codes
Nearby postal codes bordering 78746 in Austin
More Postal Codes in Austin, TX
Explore neighboring delivery districts and postal zones
Frequently Asked Questions About 78746 (Austin, TX)
What county is ZIP code 78746 located in for tax and voter purposes? ▾
ZIP code 78746 is located within Travis County, Texas. The official county seat is Austin, and the primary jurisdiction carries Texas FIPS code 48453.
What is the 4-digit ZIP+4 code for 78746? ▾
The full 9-digit postal code format is 78746-XXXX, where the last 4 digits specify exact delivery routes, high-rise buildings, or street blocks. For regular mail and parcel shipping, the 5-digit code 78746 is fully valid, while specific ZIP+4 extensions can be verified with USPS address validation.
Where is the nearest USPS post office for 78746 and what are the lobby hours? ▾
The primary USPS facility serving 78746 is Austin Westlake Station, located at 3900 Westbank Dr, Austin, TX 78746. Retail lobby operations run during Mon-Fri 8:30 AM - 5:00 PM; Sat 9:00 AM - 1:00 PM. Contact inquiries can be made at (512) 327-4638.
What telephone area codes and time zone apply to 78746? ▾
ZIP code 78746 is located in the America/Chicago (CST / CDT) time zone (observing Daylight Saving Time). Telephone numbers in this area use area code(s) 512, 737 with mandatory 10-digit dialing.
What is the population and median household income for 78746? ▾
According to U.S. Census Bureau ACS data, ZIP code 78746 in Austin has an estimated population of 28,600 residents and a median household income of $184,000 per year (compared to the Texas state median of $74,640).
What postal codes border 78746 in Austin? ▾
Adjacent and contiguous ZIP codes bordering 78746 include 78703 (Austin, ~2.8 mi), 78705 (Austin, ~4.3 mi), 78701 (Austin, ~4.5 mi), 78704 (Austin, ~4.6 mi).