San Marcos TX ZIP Code


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San Marcos city is located in Texas State, Hays County and has a unique zip code assigned by the US Postal Service Office.


You can search for the San Marcos TX zip code by its streets and block numbers if we have some of the San Marcos streets loaded in our website

San Marcos Area Code is 512 and Time Zone is Central (GMT -06:00).



San Marcos Zip Code - Texas

The US ZIP Code basic format consists of five decimal numerical digits assigned to the San Marcos City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the San Marcos ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in San Marcos, Texas.

The San Marcos Zip Code is 78666, 78667.



If you want to send a mail to San Marcos City, you should use the 78666, 78667 Zip Code.

In 1983, the U.S. Postal Service introduced an expanded San Marcos ZIP code system that it called ZIP+4, often called "plus-four codes", "add-on codes", or "add ons". A ZIP+4 code uses the basic 78666, 78667 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a San Marcos city block, a group of apartments, an individual high-volume receiver of mail or any other unit that could use an extra identifier to aid in efficient mail sorting and delivery in Texas.


San Marcos, Texas - MAP



What is the San Marcos Zip Code?

The San Marcos Zip Code in Texas is 78666, 78667.


ZIP Plus 4 San Marcos - US Streets Zip Codes

By pressing keys ctrol + F you can search San Marcos zip codes by its streets, highways, and know the ZIP+4 US ZIP Code


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Search San Marcos Zip Code

What is the zip code for San Marcos TX?

78666, 78667

San Marcos, Texas - US Zip Code



San Marcos ZIP Code Lookup

78666, 78667 Zip Code File:
Zip Code: 78666, 78667,
City: San Marcos
San Marcos Area Code: 512
San Marcos, TX - Time Zone: Central (GMT -06:00)
County: Hays
City Alias: San Marcos, San Marcos
State: Texas
State Abb: TX



Texas Zip+4 - Nearby San Marcos Cities

Cities near San Marcos in Texas
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