| City: | San Antonio, Texas |
| County: | Bexar County |
| Timezone: | Central (GMT -06:00) |
| Local Time: | 9:48:26 AM |
| Population: | No Population Data |
| Area Codes: | 210 / 726 |
| Classification: | PO Box |
| Coordinates: | 29.4239, -98.4935 |
| Quick Link: |
ZIP code 78291 sits in downtown San Antonio, Texas, serving as a dedicated PO Box facility. This isn't a residential ZIP with street addresses. Instead, it's a postal hub located on E Houston Street that provides PO Box services for 10 boxes and handles mail for 23 businesses.
The facility operates as a city delivery ZIP, designated for PO Box service within the broader downtown San Antonio area. It's enclosed within ZIP 78205 and shares the same coordinates near Alamo Plaza and the historic downtown core. The single street associated with delivery records is E Houston Street, which runs through the heart of the city's central business district.
E Houston Street is the sole street in this PO Box ZIP, a major downtown corridor that runs past the Alamo and through San Antonio's historic center.
ZIP Code 78291 is designated for PO Box delivery only; business establishment and employment data are not available.
| # Residential Mailboxes: | 0Source: USPS |
| # Business Mailboxes: | 0Source: USPS |
| Total Delivery Receptacles: | 35Source: USPS |
| Single Family Delivery Units: | 0Source: USPS |
| Multi Family Delivery Units: | 0Source: USPS |
| # of Businesses: | 0Source: CBP |
| 1st Quarter Payroll: | $0Source: CBP |
| Annual Payroll: | $0Source: CBP |
| # of Employees: | 0Source: CBP |
ZIP Code 78291 is located in Bexar County, Texas, within the San Antonio-New Braunfels, TX Metropolitan Statistical Area (CBSA 41700) and Texas's 28th Congressional District. This Metro area has a population of 2,142,508 people, about 0.00% of whom live in ZIP Code 78291. It covers 0 sq mi of land and a water area of 0 sq mi.
| CBSA Name: | San Antonio-New Braunfels, TXSource: Census |
| CBSA Number: | 41700Source: Census |
| CBSA Type: | MetroSource: Census |
| CBSA Division: | --Source: Census |
| CBSA Population: | 2,142,508Source: Census |
| MSA: | San Antonio, TX MSASource: Census |
| Land Area: | --Source: Census |
| Water Area: | --Source: Census |
| Congressional District: | 28Source: USPS |
| Congressional Land Area: | 9378.53 sq miSource: Census |
| PMSA: | --Source: Census |
| Intro Date: | < 2004-10Source: ZIP-Codes.com |
| Place FIPS Code: | 4865000Source: Census |
| Place Name: | San Antonio city; TexasSource: Census |
We could not locate which school district 78291 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.