Records Browser
| Census subdivision | Census division | Province | Year | Total population |
|---|---|---|---|---|
| McKillop | Huron | ON | 1851 | 848 |
| McNab | Renfrew | ON | 1851 | 1513 |
| Medonte | Simcoe | ON | 1851 | 1116 |
| Melancthon & Proton | Grey | ON | 1851 | 450 |
| Mersea | Essex | ON | 1851 | 1193 |
| Metcalf | Middlesex | ON | 1851 | 1096 |
| Middleton | Norfolk | ON | 1851 | 1721 |
| Minto, Arthur, Luther | Wellington | ON | 1851 | 1803 |
| Monaghan | Peterboro | ON | 1851 | 905 |
| Monaghan, South | Northumberland | ON | 1851 | 1051 |