Post Offices in Wallingford, Connecticut, United States SearchSearch SearchSearch View: Grid 1View: Grid 2View: Grid 3View: Grid 4View: Grid 5View: List Southern Ct Post Office No Reviews Favorite Phone: (203) 949-3080Retail Hours Wallingford Post Office No Reviews Favorite Fax: (203) 949-1182Phone: (203) 269-8712Retail Hours Yalesville Post Office No Reviews Favorite Phone: (203) 269-6222Retail Hours