| Subdistrict | Enum. district | # of links |
| Dawn | 7 | 100 |
| Dawn | 3 | 21 |
| Euphemia | 40 | 16 |
| Euphemia | 41 | 6 |
| Camden Township | 2 | 4 |
| Thamesville | 48 | 4 |
| Winnipeg | 45 | 3 |
| Orford | 32 | 3 |
| Camden | 1 | 3 |
| Orford | 25 | 3 |
| Napanee | 34 | 2 |
| Sarnia | 47 | 2 |
| Sarnia | 48 | 2 |
| Dawn | 4 | 2 |
| Dawn | 5 | 2 |
| Zone | 33 | 2 |
| Petrolia | 55 | 1 |
| Tilbury East | 38 | 1 |
| Petrolia | 57 | 1 |
| Sombra | 41 | 1 |
| Dawn | 9 | 1 |
| Dawn | 2 | 1 |
| Dawn | 10 | 1 |
| Oil Springs | 64 | 1 |