Post Offices in Monroe, North Carolina, United States SearchSearch SearchSearch View: Grid 1View: Grid 2View: Grid 3View: Grid 4View: Grid 5View: List Monroe Post Office No Reviews Favorite Fax: (704) 296-0499Phone: (704) 289-4508Retail Hours Monroe Annex Post Office No Reviews Favorite Fax: (704) 289-4507Phone: (704) 283-2565Retail Hours