Post office locations in 12857
| Post Office | Address | Phone | Hours |
| OLMSTEDVILLE | 622 CHURCH RD OLMSTEDVILLE, NY 12857 - 9998 | 518-251-3192 | Mon-Fri 08:00 AM - 12:00 PM Sat 08:00 AM - 11:45 AM Sun Closed |
| Post Office | Address | Phone | Hours |
| OLMSTEDVILLE | 622 CHURCH RD OLMSTEDVILLE, NY 12857 - 9998 | 518-251-3192 | Mon-Fri 08:00 AM - 12:00 PM Sat 08:00 AM - 11:45 AM Sun Closed |