Post Offices in Westerly, Rhode Island, United States SearchSearch SearchSearch View: Grid 1View: Grid 2View: Grid 3View: Grid 4View: Grid 5View: List High St Post Office No Reviews Favorite Fax: (401) 596-2872Phone: (401) 596-9537Retail Hours Westerly Post Office No Reviews Favorite Fax: (401) 348-8342Phone: (401) 596-1181Retail Hours