| Locality | Post Code |
|---|---|
| Amherstburg, Essex | N0R, N9V |
| Belle River, Essex | N0R |
| Comber, Essex | N0P |
| Cottam, Essex | N0R |
| Emeryville, Essex | N0R 0A2, N0R 1C0 |
| Essex, Essex | N0R, N8M |
| Harrow, Essex | N0R |
| Kingsville, Essex | N9Y |
| Lasalle, Essex | N9H, N9J |
| Leamington, Essex | N8H |
| Maidstone, Essex | N0R |
| McGregor, Essex | N0R |
| Oldcastle, Essex | N0R, N9G, N9H |
| Pelee Island, Essex | N0R |
| Pointe aux Roches, Essex | N0R |
| Ruscom Station, Essex | N0R 1R0 |
| Ruthven, Essex | N0P |
| Saint Joachim, Essex | N0R |
| South Woodslee, Essex | N0R |
| Staples, Essex | N0P |
| Tecumseh, Essex | N8N, N8P, N9K |
| Windsor, Essex | N8N, N8P, N8R, N8S, N8T, … |