| Subdistrict | Enum. district | # of links |
| Forest | 50 | 184 |
| Forest | 49 | 8 |
| Plympton | 23 | 7 |
| Forest | 51 | 7 |
| Ailsa Craig | 31 | 6 |
| Petrolia | 55 | 6 |
| Plympton | 25 | 6 |
| Ridgetown | 43 | 6 |
| London | 9 | 5 |
| Plympton | 21 | 5 |
| ward 4 | 68 | 5 |
| Ridgetown | 42 | 4 |
| Sarnia | 49 | 4 |
| Warwick | 45 | 3 |
| London | 5 | 3 |
| Bosanquet | 4 | 2 |
| Warwick | 46 | 2 |
| Rapid | 34 | 2 |
| Plympton | 26 | 2 |
| Smiths Falls | 35 | 2 |
| Petrolia | 56 | 1 |
| Enniskillen | 33 | 1 |
| London Township | 9 | 1 |
| Plympton | 22 | 1 |
| London | 1 | 1 |