Popularity:#37 of 39 Post Offices in Sacramento County#1,439 of 1,645 Post Offices in California#25,818 in Post Offices
Address, Phone Number, and Hours for Walnut Grove Post Office, a Post Office, at River Road, Walnut Grove CA.
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The Walnut Grove Post Office, located in Walnut Grove, CA, is a branch location of the United States Postal Service (USPS) that serves the Walnut Grove 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: