| Subdistrict | Enum. district | # of links |
| Dawn | 9 | 130 |
| Dresden | 40 | 9 |
| Sarnia | 31 | 9 |
| Euphemia | 38 | 5 |
| Caradoc Township | 7 | 5 |
| Township 25 in ranges 17 | 40 | 4 |
| North Vancouver | 63 | 4 |
| Dawn | 7 | 4 |
| Howard | 20 | 3 |
| Township 7 in ranges 19 | 54 | 3 |
| Dawn | 6 | 3 |
| Ancaster Township | 1 | 2 |
| Euphemia | 40 | 2 |
| Dawn | 10 | 2 |
| Chatham | 51 | 2 |
| Brantford | 3 | 2 |
| Sault St. Louis Indian Reserve | 28 | 1 |
| Euphemia | 37 | 1 |
| Petrolia | 56 | 1 |
| Sarnia | 44 | 1 |
| Dresden | 39 | 1 |