| Localité | Code postal |
|---|---|
| Arden, Frontenac | K0H |
| Ardoch, Frontenac | K0H 0A4, K0H 1C0 |
| Battersea, Frontenac | K0H 1H0 |
| Clarendon Station, Frontenac | K0H 1J0 |
| Cloyne, Frontenac | K0H |
| Elginburg, Frontenac | K0H |
| Glenburnie, Frontenac | K0H 1S0 |
| Godfrey, Frontenac | K0H |
| Harrowsmith, Frontenac | K0H 1V0 |
| Hartington, Frontenac | K0H |
| Inverary, Frontenac | K0H |
| Joyceville, Frontenac | K0H |
| Kingston, Frontenac | K7K, K7L, K7M, K7N, K7P |
| Mountain Grove, Frontenac | K0H 2E0 |
| Ompah, Frontenac | K0H 2J0 |
| Parham, Frontenac | K0H |
| Perth Road, Frontenac | K0H 2L0 |
| Plevna, Frontenac | K0H |
| Sharbot Lake, Frontenac | K0H |
| Snow Road Station, Frontenac | K0H 2R0 |
| Sydenham, Frontenac | K0H |
| Tichborne, Frontenac | K0H 2V0 |
| Verona, Frontenac | K0H |
| Westbrook, Frontenac | K7P |
| Wolfe Island, Frontenac | K0H |