Popularity:#14 of 274 Post Offices in Los Angeles County#165 of 1,645 Post Offices in California#4,994 in Post Offices
View Address, Phone Number, and Hours for Sierra Madre Post Office, a Post Office, at South Baldwin Avenue, Sierra Madre CA.
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The Sierra Madre Post Office, located in Sierra Madre, CA, is a branch location of the United States Postal Service (USPS) that serves the Sierra Madre 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: