| Subdistrict | Enum. district | # of links |
| Thedford | 66 | 213 |
| Bosanquet | 2 | 21 |
| Ailsa Craig | 31 | 5 |
| Arkona | 63 | 4 |
| Townships 12 | 33 | 4 |
| St. Thomas | 38 | 4 |
| Bosanquet | 3 | 4 |
| Sarnia | 44 | 4 |
| Chatham | 44 | 4 |
| Caradoc Township | 7 | 4 |
| Toronto | 125 | 4 |
| Sombra | 43 | 3 |
| McGillivray | 20 | 2 |
| Aldoborough | 4 | 2 |
| Forest | 49 | 2 |
| Glencoe | 36 | 2 |
| London | 14 | 2 |
| Adelaide | 1 | 2 |
| Sarnia | 32 | 1 |
| London | 33 | 1 |
| Wiarton | 48 | 1 |
| Neepawa | 4 | 1 |
| Oil Springs | 65 | 1 |
| Sarnia | 50 | 1 |
| Okanagan | 39 | 1 |
| Plympton | 25 | 1 |
| Bothwell | 37 | 1 |
| London | 11 | 1 |
| Sarnia | 49 | 1 |
| Townships 30 | 7 | 1 |
| Watford | 67 | 1 |
| Goderich | 19 | 1 |
| London | 12 | 1 |
| Enniskillen | 21 | 1 |