Post Offices List in Essex County, Virginia:
| Caret Post Office | 13854 Tidewater Trl, Caret, VA 22436 |
| Center Cross Post Office | 31837 Tidewater Trl, Center Cross, VA 22437 |
| Champlain Post Office | 11246 Tidewater Trl, Champlain, VA 22438 |
| Dunnsville Post Office | 27081 Tidewater Trl, Dunnsville, VA 22454 |
| Millers Tavern Post Office | 6908 Richmond Hwy, Millers Tavern, VA 23115 |
| Tappahannock Post Office | 400 Wright St, Tappahannock, VA 22560 |