Post Offices in Mayaguez, Puerto Rico, United States SearchSearch SearchSearch View: Grid 1View: Grid 2View: Grid 3View: Grid 4View: Grid 5View: List Marina Post Office No Reviews Favorite Fax: (787) 805-5625Phone: (787) 805-0445Retail Hours Mayaguez Post Office No Reviews Favorite Fax: (787) 831-6106Phone: (787) 265-3138Retail Hours