Post Offices in El Dorado, Arkansas, United States SearchSearch SearchSearch View: Grid 1View: Grid 2View: Grid 3View: Grid 4View: Grid 5View: List Downtown El Dorado Post Office No Reviews Favorite Fax: (870) 875-2161Phone: (870) 875-1673Retail Hours El Dorado Post Office No Reviews Favorite Fax: (870) 875-2161Phone: (870) 863-7571Retail Hours