Downtown San Antonio Zip Code Map
Bexar County, Texas ZIP Code Map and Listings
Overview of Bexar County ZIP Codes
Bexar County, Texas, home to San Antonio, features a comprehensive ZIP Code system covering dense urban neighborhoods, rapidly growing suburbs, and semi-rural ranch lands.
The county includes 89 total ZIP Codes, comprised of standard residential delivery areas, extensive PO Box distribution centers, and unique codes for major military bases and corporate campuses.
- Total ZIP Codes: 89
- Standard residential ZIP Codes: 64
- PO Box ZIP Codes: 17
- Unique / business ZIP Codes: 8 (e.g., USAA, Lackland AFB, Fort Sam Houston)
- Census ZIP Code Tabulation Areas (ZCTAs): 64
ZIP Code Range in Bexar County
Bexar County ZIP Codes fall primarily within the South Central Texas postal ranges:
- Lowest ZIP Code: 78002 (Atascosa)*
- Lowest Metro ZIP Code: 78015 (Fair Oaks Ranch)
- Highest ZIP Code: 78299 (San Antonio - General Mail Facility)
- Highest Residential ZIP Code: 78266 (Garden Ridge/Bracken)
- Overall ZIP range: 78002–78299
*Note: 78002 is primarily in Atascosa County but extends into southern Bexar County. The core San Antonio codes range from 78201 to 78266.
Post Offices and PO Box ZIP Codes
- PO Box ZIP Codes: 17 PO Box-only ZIP Codes (e.g., 78270, 78280)
- Post office facilities: 42 USPS post offices, stations, and branches throughout San Antonio and surrounding communities
- PO Box locations: Distributed in urban centers (78205 Downtown) and suburban hubs (78269 Helotes)
Cities, Towns, and Communities Covered by Bexar County ZIP Codes
Bexar County ZIP Codes serve San Antonio and several smaller cities and unincorporated communities.
Major Cities and Municipalities
- San Antonio
- Live Oak
- Universal City
- Castle Hills
- Windcrest
- Kirby
Additional Communities and Areas
- Leon Valley, Converse, Alamo Heights, Terrell Hills
- Hollywood Park, Balcones Heights, Helotes
- Various unincorporated suburban and rural areas surrounding San Antonio
ZIP Codes often cross city and municipal boundaries, particularly in the "doughnut hole" cities like Alamo Heights (78209) that are completely surrounded by San Antonio.
ZIP Code Population Patterns
Population density in Bexar County ZIP Codes varies from dense urban neighborhoods of San Antonio to suburban and semi-rural areas.
- Most populated ZIP Code areas: The rapid growth in the Northwest has made 78245 (Alamo Ranch) and 78254 the most populous, each exceeding 85,000 residents.
- Least populated ZIP Codes: Military bases like 78236 (Lackland AFB) and downtown business sectors have lower permanent civilian populations.
Bexar County has a population exceeding 2 million, making it the 17th most populous county in the United States.
Key ZIP Code Statistics (Summary)
| Category |
Value |
| Total ZIP Codes |
89 |
| Standard ZIP Codes |
64 |
| PO Box ZIP Codes |
17 |
| Unique / Business ZIP Codes |
8 |
| ZIP Code Range |
78002–78299 |
| Census ZCTAs |
64 |
| Highest Life Expectancy (by ZCTA) |
89.2 years (78254 - Far West Side) |
| Highest Crime Rate Index |
78207 (West Side)* |
*Note: 78207 consistently records the highest volume of total crime incidents; however, 78205 (Downtown) often shows a higher "per capita" rate due to its low residential population.
San Antonio, TX Zip Code Map and Bexar County and city zip code listing database