| Subdistrict | Enum. district | # of links |
| Caradoc | 6 | 325 |
| Caradoc | 1 | 12 |
| Caradoc Township | 4 | 11 |
| Metcalfe | 22 | 10 |
| Caradoc Township | 3 | 9 |
| Caradoc Township | 7 | 7 |
| Enniskillen | 21 | 6 |
| Strathroy | 33 | 4 |
| Ekfrid | 15 | 2 |
| Alvinston | 61 | 2 |
| Camden | 1 | 2 |
| London | 8 | 2 |
| London | 7 | 2 |
| Enniskillen | 23 | 2 |
| London Township | 10 | 2 |
| Ekfrid Township | 16 | 1 |
| Caradoc | 5 | 1 |
| Strathroy | 34 | 1 |
| Metcalfe | 19 | 1 |
| Delaware Township | 11 | 1 |
| Clinton | 9 | 1 |
| London Township | 6 | 1 |
| Sarnia | 50 | 1 |
| Adelaide | 2 | 1 |
| Strathroy | 35 | 1 |