Post office locations in 18850
| Post Office | Address | Phone | Hours |
| ULSTER | 23848 ROUTE 220 ULSTER, PA 18850 - 9998 | 570-358-3404 | Mon-Fri 9:30am - 12:30pm 1:30pm - 4:30pm Sat 8:30am - 11:30am Sun Closed |
| Post Office | Address | Phone | Hours |
| ULSTER | 23848 ROUTE 220 ULSTER, PA 18850 - 9998 | 570-358-3404 | Mon-Fri 9:30am - 12:30pm 1:30pm - 4:30pm Sat 8:30am - 11:30am Sun Closed |