M4 — 19 códigos em 19 localidades (Canadá).
| Código postal | Localidade / Distrito | Região / Município | Coordenadas |
|---|---|---|---|
| North York (Sweeney Park / Wigmore Park) | Ontario | 43.7276, -79.3148 | |
| East York (Parkview Hill / Woodbine Gardens) | East York · Ontario | 43.7063, -79.3094 | |
| East York (Woodbine Heights) | East York · Ontario | 43.6913, -79.3116 | |
| East Toronto (The Beaches) | Toronto · Ontario | 43.6784, -79.2941 | |
| East York (Leaside) | East York · Ontario | 43.7124, -79.3644 | |
| East York (Thorncliffe Park) | East York · Ontario | 43.7059, -79.3464 | |
| East Toronto (The Danforth East) | Toronto · Ontario | 43.6872, -79.3368 | |
| East Toronto (The Danforth West / Riverdale) | Toronto · Ontario | 43.6803, -79.3538 | |
| East Toronto (India Bazaar / The Beaches West) | Toronto · Ontario | 43.6693, -79.3155 | |
| East Toronto (Studio District) | Toronto · Ontario | 43.6561, -79.3406 | |
| Central Toronto (Lawrence Park East) | Toronto · Ontario | 43.7301, -79.3935 | |
| Central Toronto (Davisville North) | Toronto · Ontario | 43.7135, -79.3887 | |
| Central Toronto (North Toronto West) | Toronto · Ontario | 43.7143, -79.4065 | |
| Central Toronto (Davisville) | Toronto · Ontario | 43.702, -79.3853 | |
| Central Toronto (Moore Park / Summerhill East) | Toronto · Ontario | 43.6899, -79.3853 | |
| Central Toronto (Summerhill West / Rathnelly / South Hill / Forest Hill SE / Deer Park) | Toronto · Ontario | 43.6861, -79.4025 | |
| Downtown Toronto (Rosedale) | Toronto · Ontario | 43.6827, -79.373 | |
| Downtown Toronto (St. James Town / Cabbagetown) | Toronto · Ontario | 43.6684, -79.3689 | |
| Downtown Toronto (Church and Wellesley) | Toronto · Ontario | 43.6656, -79.383 |