Post office locations in 01523
| Post Office | Address | Phone | Hours |
| LANCASTER | 771 MAIN ST LANCASTER, MA 01523 - 9998 | 978-365-4923 | Mon-Fri 9:00am - 12:30pm 1:30pm - 4:30pm Sat 9:00am - 12:00pm Sun Closed |
| Post Office | Address | Phone | Hours |
| LANCASTER | 771 MAIN ST LANCASTER, MA 01523 - 9998 | 978-365-4923 | Mon-Fri 9:00am - 12:30pm 1:30pm - 4:30pm Sat 9:00am - 12:00pm Sun Closed |