San Marcos Texas is covered by a total of 2 ZIP Codes. There are also 1 ZIP Codes that overlap San Marcos but have a different postal city name. The ZIP Codes in San Marcos range from 78656 to 78667. Of the ZIP codes within or partially within San Marcos there are 1 Standard ZIP Codes and 1 PO Box ZIP Codes. The total population of ZIP Codes in San Marcos is 86530.
Click on the ZIP Codes in the interactive map to view more information. The map control in the upper right corner can be used to toggle map layers on and off. The red outline is the border of San Marcos and can be turned on and off. Each type of postal code can also be turned on and off.
| ZIP Code | ZIP Code City/Town | ZIP Code Type | |||
|---|---|---|---|---|---|
| Maxwell | Standard | |||
| San Marcos | Standard | |||
| San Marcos | PO Box |