Post office locations in 03858
| Post Office | Address | Phone | Hours |
| NEWTON | 77 S MAIN ST NEWTON, NH 03858 - 3723 | 603-382-9028 | Mon-Fri 08:30 AM - 11:30 AM 12:00 PM - 04:30 PM Sat 09:00 AM - 12:00 PM Sun Closed |
| Post Office | Address | Phone | Hours |
| NEWTON | 77 S MAIN ST NEWTON, NH 03858 - 3723 | 603-382-9028 | Mon-Fri 08:30 AM - 11:30 AM 12:00 PM - 04:30 PM Sat 09:00 AM - 12:00 PM Sun Closed |