Post Offices in Duluth, Georgia, United States SearchSearch SearchSearch View: Grid 1View: Grid 2View: Grid 3View: Grid 4View: Grid 5View: List Boggs Road Post Office No Reviews Favorite Phone: (770) 717-3701Retail Hours Duluth Post Office No Reviews Favorite Fax: (770) 476-7705Phone: (770) 232-2757Retail Hours Gwinnett Mall Corners Post Office No Reviews Favorite Fax: (770) 623-9435Phone: (770) 497-9228Retail Hours