| Localité | Code postal |
|---|---|
| Alliston, Simcoe | L9R |
| Angus, Simcoe | L0M |
| Barrie, Simcoe | L4M, L4N, L9J, L9X |
| Beeton, Simcoe | L0G |
| Borden, Simcoe | L0M |
| Bradford, Simcoe | L3Z |
| Brechin, Simcoe | L0K |
| Christian Island, Simcoe | L9M 0A9 |
| Coldwater, Simcoe | L0K |
| Collingwood, Simcoe | L9Y |
| Cookstown, Simcoe | L0L |
| Creemore, Simcoe | L0M |
| Cumberland Beach, Simcoe | L0K 0A1, L0K 1G0 |
| Duntroon, Simcoe | L0M 1H0 |
| Egbert, Simcoe | L0L |
| Elmvale, Simcoe | L0L |
| Everett, Simcoe | L0M |
| Gilford, Simcoe | L0L 1R0 |
| Glen Huron, Simcoe | L0M 1L0 |
| Glencairn, Simcoe | L0M |
| Hillsdale, Simcoe | L0L |
| Innisfil, Simcoe | L9S |
| Lefroy, Simcoe | L0L |
| Lisle, Simcoe | L0M |
| Longford Mills, Simcoe | L0K 0A9, L0K 1L0 |
| Loretto, Simcoe | L0G 1L0 |