US ZIP Codes
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ZIP codes in San Marcos, Texas

San Marcos has 2 ZIP codes in this directory. Each ZIP is listed with its county, population and time zone.

ZIPCountyPopulationTime zone
78666Hays60,684America/Chicago
78667Hays60,684America/Chicago

About San Marcos ZIP codes

ZIP codes in San Marcos are part of the USPS delivery network for Texas. The codes above are ordered numerically; each links to a page with coordinates, nearby ZIPs and more detail. Population shown is the estimated population of the city: 60,684.

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