| Locality | Postal Code |
|---|---|
| Amherstview, Lennox and Addington | K7M, K7N |
| Bath, Lennox and Addington | K0H |
| Camden East, Lennox and Addington | K0K 1J0, K0K 0C4 |
| Centreville, Lennox and Addington | K0K 1N0 |
| Denbigh, Lennox and Addington | K0H |
| Enterprise, Lennox and Addington | K0K 1Z0 |
| Erinsville, Lennox and Addington | K0K 2A0 |
| Flinton, Lennox and Addington | K0H |
| Kaladar, Lennox and Addington | K0H 1Z0 |
| Napanee, Lennox and Addington | K7R |
| Newburgh, Lennox and Addington | K0K |
| Northbrook, Lennox and Addington | K0H 2G0 |
| Odessa, Lennox and Addington | K0H |
| Roblin, Lennox and Addington | K0K |
| Selby, Lennox and Addington | K0K 2Z0 |
| Stella, Lennox and Addington | K0H |
| Tamworth, Lennox and Addington | K0K |
| Yarker, Lennox and Addington | K0K |