Post Offices in Brownsville, Texas, United States SearchSearch SearchSearch View: Grid 1View: Grid 2View: Grid 3View: Grid 4View: Grid 5View: List Brownsville Post Office No Reviews Favorite Fax: (956) 546-4390Phone: (956) 546-2411Retail Hours Downtown Brownsville Post Office No Reviews Favorite Phone: (956) 542-6898Retail Hours