Columbia University Post Office 4 years ago ID: #333205 Listed In : Government Offices 534 W 112th St, New York, NY 10025 212-864-7813 postofficeshours.com/ny/new-york/columbia-university/ Business Description New York Post Office in New York County, NY 10025. USPS Post office locations hours and phone numbers. Reviews & Ratings Write a Review No Review. Please login / register to add your review. Tags : New york ny post office new york post office post office hours new york ny post office hours new York usps near new york ny columbia university post office