| Subdistrict | Enum. district | # of links |
| Sarnia | 32 | 128 |
| Sarnia | 30 | 120 |
| Sarnia | 50 | 13 |
| Sarnia | 49 | 12 |
| Point Edward | 60 | 5 |
| Brooke | 9 | 4 |
| Sarnia | 46 | 4 |
| Plympton | 28 | 3 |
| Whitby | 40 | 3 |
| Dorchester South | 8 | 3 |
| Sarnia | 53 | 1 |
| Sombra | 42 | 1 |
| Mersea | 24 | 1 |
| Dorchester South | 7 | 1 |
| Dereham | 3 | 1 |
| Moore | 13 | 1 |
| Sarnia | 51 | 1 |
| Plympton | 25 | 1 |