Post Offices in Idaho Falls, Idaho, United States SearchSearch SearchSearch View: Grid 1View: Grid 2View: Grid 3View: Grid 4View: Grid 5View: List Eagle Rock Post Office No Reviews Favorite Fax: (208) 522-6086Phone: (208) 542-0837Retail Hours Idaho Falls Post Office No Reviews Favorite Fax: (208) 529-5853Phone: (208) 525-2511Retail Hours