| Subdistrict | Enum. district | # of links |
| Enniskillen | 35 | 140 |
| Enniskillen | 31 | 9 |
| Plympton | 24 | 5 |
| Sarnia | 49 | 4 |
| Enniskillen | 33 | 4 |
| London | 5 | 4 |
| Strathroy | 33 | 3 |
| Petrolia | 58 | 3 |
| Wyoming | 57 | 3 |
| St. Thomas | 36 | 3 |
| Enniskillen | 34 | 1 |
| Oil Springs | 65 | 1 |
| Nissouri East | 20 | 1 |
| London Township | 9 | 1 |
| Plympton | 25 | 1 |
| Moore | 17 | 1 |
| Petrolia | 52 | 1 |