| City: | Austin, Texas |
| County: | Travis County |
| Timezone: | Central (GMT -06:00) |
| Local Time: | 9:52:01 AM |
| Population: | No Population Data |
| Area Code: | 512 |
| Classification: | PO Box |
| Coordinates: | 30.2667, -97.7428 |
| Quick Link: |
ZIP code 78764 serves a specific location on South Congress Avenue in Austin's Greater South River City area, near the St. Edwards neighborhood. This isn't a traditional residential ZIP. It's classified as a PO Box ZIP but has both box service and street delivery to a single address with multiple units.
The post office maintains 44 PO Boxes alongside 49 business delivery points, all concentrated at one South Congress Avenue location. With 77 delivery records showing unit designators, this appears to be a commercial building or small complex. One city carrier route (C classification) handles all street delivery, while PO Box service provides an alternative for businesses and organizations that prefer it.
This ZIP has no residential population and no defined territory. It exists as a point location within the larger 78704 ZIP code area. The 5 business establishments here employ 27 people, suggesting small to mid-sized commercial operations. Because Austin has extensive street delivery through other ZIP codes, this isn't a PO Box Only Zone. Street delivery is widely available throughout the city.
All delivery occurs at one South Congress Avenue address with multiple units.
ZIP Code 78764 supports both business and residential activity. According to the Business Census (2024), there are 3 business establishments, employing about 27 people with an annual payroll of $1,862,000.
| # Residential Mailboxes: | 0Source: USPS |
| # Business Mailboxes: | 0Source: USPS |
| Total Delivery Receptacles: | 88Source: USPS |
| Single Family Delivery Units: | 0Source: USPS |
| Multi Family Delivery Units: | 0Source: USPS |
| # of Businesses: | 3Source: CBP |
| 1st Quarter Payroll: | $451,000Source: CBP |
| Annual Payroll: | $1,862,000Source: CBP |
| # of Employees: | 27Source: CBP |
ZIP Code 78764 is located in Travis County, Texas, within the Austin-Round Rock-San Marcos, TX Metropolitan Statistical Area (CBSA 12420) and Texas's 37th Congressional District. This Metro area has a population of 1,716,289 people, about 0.00% of whom live in ZIP Code 78764. It covers 0 sq mi of land and a water area of 0 sq mi.
| CBSA Name: | Austin-Round Rock-San Marcos, TXSource: Census |
| CBSA Number: | 12420Source: Census |
| CBSA Type: | MetroSource: Census |
| CBSA Division: | --Source: Census |
| CBSA Population: | 1,716,289Source: Census |
| MSA: | Austin-San Marcos, TX MSASource: Census |
| Land Area: | --Source: Census |
| Water Area: | --Source: Census |
| Congressional District: | 37Source: USPS |
| Congressional Land Area: | 0 sq miSource: Census |
| PMSA: | --Source: Census |
| Intro Date: | < 2004-10Source: ZIP-Codes.com |
| Place FIPS Code: | 4805000Source: Census |
| Place Name: | Austin city; TexasSource: Census |
We could not locate which school district 78764 belongs to, but we will update this once new district data is released. There are no public schools nor private schools with a mailing address in this ZIP Code. Listing Nearby schools instead. It also has 6 colleges, universities or post secondary education institutions nearby which would be a short commute to.
Our sources include trusted federal and licensed data from the United States Postal Service, U.S. Census Bureau, U.S. Geological Survey, Centers for Medicare & Medicaid Services, and the National Center for Education Statistics, along with proprietary datasets created by ZIP-Codes.com. Data last updated on February 1, 2026.