San Marcos Post Office Contact Information

Address, Phone Number, and Hours for an Post Office in San Marcos, California.

Name San Marcos Post Office
Address 420 North Twin Oaks Valley Road, San Marcos CA 92069 Map
Phone (760) 744-2371
Website
Hours

Map of San Marcos Post Office

About San Marcos Post Office

The San Marcos Post Office, located in San Marcos, CA, is a branch location of the United States Postal Service (USPS) that serves the San Marcos community. The customer service postal facility offers mail and package delivery services, P.O. box services, and passport services. The USPS operates as an independent agency within the federal government, supported entirely by revenues generated through its operations.

Interested parties may contact Post Office for questions about:

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