Post Offices List in Lynnfield City, Massachusetts:
| Lynnfield Post Office | 38 Summer St, Lynnfield, MA 01940 |
| South Lynnfield Post Office | 598 Salem St, Lynnfield, MA 01940 |
| Lynnfield Post Office | 38 Summer St, Lynnfield, MA 01940 |
| South Lynnfield Post Office | 598 Salem St, Lynnfield, MA 01940 |