Post Offices in Chanhassen, Minnesota, United States SearchSearch SearchSearch View: Grid 1View: Grid 2View: Grid 3View: Grid 4View: Grid 5View: List Chanhassen Post Office No Reviews Favorite Fax: (952) 934-0237Phone: (952) 974-5297Retail Hours Chanhassen Carrier Annex Post Office No Reviews Favorite Fax: (952) 361-3468Phone: (952) 361-6892Retail Hours