| Subdistrict | Enum. district | # of links |
| Enniskillen | 21 | 92 |
| Brooke | 8 | 7 |
| London Township | 6 | 7 |
| Oil Springs | 65 | 6 |
| Enniskillen | 19 | 6 |
| Enniskillen | 20 | 5 |
| Brooke | 10 | 5 |
| Townships 34 | 34 | 5 |
| Enniskillen | 28 | 4 |
| Euphemia | 38 | 4 |
| Dawn | 5 | 4 |
| Dresden | 38 | 3 |
| Petrolia | 55 | 3 |
| Sarnia | 49 | 3 |
| Aylmer | 25 | 3 |
| Caradoc Township | 7 | 2 |
| Zone | 35 | 1 |
| London | 41 | 1 |
| Petrolia | 57 | 1 |
| Oil Springs | 64 | 1 |
| Enniskillen | 24 | 1 |
| Sarnia | 46 | 1 |