Post office locations in 04978
| Post Office | Address | Phone | Hours |
| SMITHFIELD | 860 VILLAGE RD SMITHFIELD, ME 04978 - 9998 | 207-362-5901 | Mon-Fri 08:45 AM - 11:30 AM 12:30 PM - 03:30 PM Sat 08:00 AM - 11:30 AM Sun Closed |
| Post Office | Address | Phone | Hours |
| SMITHFIELD | 860 VILLAGE RD SMITHFIELD, ME 04978 - 9998 | 207-362-5901 | Mon-Fri 08:45 AM - 11:30 AM 12:30 PM - 03:30 PM Sat 08:00 AM - 11:30 AM Sun Closed |