Fort Sam Houston is one of the most historic military installations in Texas and serves as a major component of Joint Base San Antonio. Located on the northeastern side of San Antonio, the installation is home to military training facilities, medical centers, administrative offices, and residential areas. If you’re searching for the ZIP code for Fort Sam Houston, Texas, knowing the correct postal code is important for mail delivery, address verification, and relocation planning.
Fort Sam Houston ZIP Codes
| ZIP Code | Area / Location |
| 78234 | Fort Sam Houston (Primary ZIP Code) |
| 78208 | Adjacent San Antonio Area |
| 78209 | Alamo Heights & Nearby Communities |
| 78218 | Northeast San Antonio |
| 78219 | East San Antonio |
| 78235 | Military Facilities Area |
Areas Served by Fort Sam Houston ZIP Code
| ZIP Code | Coverage Area |
| 78234 | Fort Sam Houston Main Installation |
| 78234 | Military Housing Areas |
| 78234 | Administrative Offices |
| 78234 | Training Facilities |
| 78234 | Portions of Joint Base San Antonio |
Fort Sam Houston ZIP Code Range
The primary ZIP code associated with Fort Sam Houston is 78234. Most military offices, facilities, and mailing addresses within the installation use this postal code.
How to Find the Right Fort Sam Houston ZIP Code
Although 78234 is the main ZIP code for Fort Sam Houston, it’s always a good idea to verify the exact address before sending mail.
- Check the complete military or residential address.
- Use the USPS ZIP Code Lookup tool for official ZIP code verification.
- Review official military correspondence that includes the correct mailing address.
- Verify building and unit numbers when mailing to military personnel.
- Confirm ZIP codes before shipping packages to avoid delays.
Popular ZIP Codes Near Fort Sam Houston
Some commonly searched ZIP codes around Fort Sam Houston include:
- 78234 – Fort Sam Houston
- 78208 – Near East Side San Antonio
- 78209 – Alamo Heights
- 78218 – Northeast San Antonio
- 78219 – East San Antonio
- 78235 – Military Facilities Area
- 78216 – North Central San Antonio
- 78205 – Downtown San Antonio
Frequently Asked Questions
Q: What is the ZIP code for Fort Sam Houston Texas?
A: The primary ZIP code for Fort Sam Houston is 78234.
Q: Is Fort Sam Houston part of San Antonio?
A: Yes. Fort Sam Houston is located within the city of San Antonio, Texas, and is part of Joint Base San Antonio.
Q: Does Fort Sam Houston have more than one ZIP code?
A: Most installation addresses use 78234, although nearby military and civilian areas may use different ZIP codes.
Q: What county is Fort Sam Houston in?
A: Fort Sam Houston is located in Bexar County, Texas.
Final Thoughts
If you’re looking for the ZIP code for Fort Sam Houston, Texas, the postal code used for most military facilities and addresses is 78234. Whether you’re mailing correspondence, relocating to the area, or verifying an address, using the correct ZIP code helps ensure accurate delivery and location identification.
