N0 — 13 codes dans 13 localités (Canada).
| Code postal | Localité / Quartier | Zone administrative | Coordonnées |
|---|---|---|---|
| West Haldimand (Port Dover) | Ontario | 42.9403, -79.945 | |
| Wellington (Elora) | Ontario | 43.5569, -80.4414 | |
| Georgian Bay Southwest Shore (Dundalk) | Ontario | 44.2561, -80.5029 | |
| Brant and Norfolk (Waterford) | Ontario | 42.6618, -80.5572 | |
| Huron (Wingham) | Ontario | 44.0024, -81.0676 | |
| Bruce Peninsula (Wiarton) | Ontario | 44.6941, -81.0962 | |
| Oxford (Norwich) | Ontario | 42.9775, -80.7057 | |
| Perth (Mitchell) | Ontario | 43.5067, -81.1582 | |
| Elgin (Dorchester) | Ontario | 42.7557, -81.4533 | |
| Middlesex (Clinton) | Ontario | 43.2788, -81.5442 | |
| Lambton (Forest) | Ontario | 42.9062, -82.11 | |
| Kent (Blenheim) | Ontario | 42.4045, -81.9107 | |
| Essex (Belle River) | Ontario | 42.1783, -82.7715 |