Post Offices in Aiken, South Carolina, United States SearchSearch SearchSearch View: Grid 1View: Grid 2View: Grid 3View: Grid 4View: Grid 5View: List Aiken Post Office No Reviews Favorite Fax: (803) 648-3381Phone: (803) 649-9211Retail Hours Summerall Post Office No Reviews Favorite Fax: (803) 649-6083Phone: (803) 649-9317Retail Hours