San Marcos zipcode
| City | San Marcos |
| ZIP Code | 78666 |
| Type | Standard |
| State Code | TX |
| State | Texas |
ZIP code of San Marcos is 78666. This place is located in Texas state in US. To send any postal service to San Marcos, you must use 78666 zipcode.
| City | San Marcos |
| ZIP Code | 78666 |
| Type | Standard |
| State Code | TX |
| State | Texas |
ZIP code of San Marcos is 78666. This place is located in Texas state in US. To send any postal service to San Marcos, you must use 78666 zipcode.
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