Rochester, MN

ZIP code 55903 is a U.S. Postal Service PO Box ZIP associated with Rochester, Minnesota, rather than a defined residential neighborhood. Because it does not map to a distinct geographic area, no major physical landmarks can be confidently said to lie within it. Rochester’s best-known sites—including Mayo Clinic’s main campus, the Plummer Building, and Soldiers Field Veterans Memorial—are nearby but served by other ZIP codes.