Popularity:#2 of 28 Post Offices in Marin County#23 of 1,645 Post Offices in California#531 in Post Offices
Address, Phone Number, and Hours for San Anselmo Post Office, a Post Office, at San Anselmo Avenue, San Anselmo CA.
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The San Anselmo Post Office, located in San Anselmo, CA, is a branch location of the United States Postal Service (USPS) that serves the San Anselmo 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.You may contact the Post Office for questions about: