Post office locations in 16921
| Post Office | Address | Phone | Hours |
| GAINES | 1977 ROUTE 6 GAINES, PA 16921 - 9998 | 814-435-8846 | Mon-Fri 12:00pm - 4:00pm Sat 9:00am - 11:30am Sun Closed |
| Post Office | Address | Phone | Hours |
| GAINES | 1977 ROUTE 6 GAINES, PA 16921 - 9998 | 814-435-8846 | Mon-Fri 12:00pm - 4:00pm Sat 9:00am - 11:30am Sun Closed |