Post Offices List in Harleysville City, Pennsylvania:
| Harleysville Post Office | 600 Oak Dr, Harleysville, PA 19438 |
| Mainland Post Office | 600 Oak Dr, Harleysville, PA 19438 |
| Harleysville Post Office | 600 Oak Dr, Harleysville, PA 19438 |
| Mainland Post Office | 600 Oak Dr, Harleysville, PA 19438 |