Post office locations in 03858
| Post Office | Address | Phone | Hours |
| NEWTON | 77 S MAIN ST NEWTON, NH 03858 - 3723 | 603-382-9028 | Mon-Fri 8:30am - 11:30am 12:00pm - 4:30pm Sat 9:00am - 12:00pm Sun Closed |
| Post Office | Address | Phone | Hours |
| NEWTON | 77 S MAIN ST NEWTON, NH 03858 - 3723 | 603-382-9028 | Mon-Fri 8:30am - 11:30am 12:00pm - 4:30pm Sat 9:00am - 12:00pm Sun Closed |