| Subdistrict | Enum. district | # of links |
| Adelaide | 2 | 211 |
| Adelaide | 4 | 14 |
| Townships 30 | 1 | 8 |
| Sarnia | 34 | 7 |
| Plympton | 21 | 6 |
| Sarnia | 46 | 6 |
| Williams East | 23 | 6 |
| Strathroy | 34 | 6 |
| Dorchester North Township | 1 | 6 |
| Sarnia | 51 | 4 |
| Strathroy | 31 | 4 |
| Strathroy | 32 | 4 |
| Strathroy | 33 | 3 |
| Strathroy | 35 | 3 |
| London | 5 | 3 |
| Lobo | 13 | 2 |
| Lobo | 12 | 2 |
| Adelaide | 1 | 1 |
| London | 14 | 1 |
| Wardsville | 39 | 1 |
| Enniskillen | 28 | 1 |
| Townships 35 | 13 | 1 |
| London | 33 | 1 |
| London Township | 5 | 1 |
| Norwick | 40 | 1 |