Post Offices in Farmingdale, New York, United States SearchSearch SearchSearch View: Grid 1View: Grid 2View: Grid 3View: Grid 4View: Grid 5View: List Farmingdale Post Office No Reviews Favorite Fax: (516) 249-1089Phone: (516) 249-1552Retail Hours South Farmingdale Post Office No Reviews Favorite Fax: (516) 249-4497Phone: (516) 249-1573Retail Hours