Post office locations in 03781
| Post Office | Address | Phone | Hours |
| PLAINFIELD | 1132 ROUTE 12A PLAINFIELD, NH 03781 - 9998 | 603-675-2723 | Mon-Fri 08:30 AM - 12:00 PM 02:00 PM - 05:00 PM Sat 08:30 AM - 11:30 AM Sun Closed |
| Post Office | Address | Phone | Hours |
| PLAINFIELD | 1132 ROUTE 12A PLAINFIELD, NH 03781 - 9998 | 603-675-2723 | Mon-Fri 08:30 AM - 12:00 PM 02:00 PM - 05:00 PM Sat 08:30 AM - 11:30 AM Sun Closed |