| Subdistrict | Enum. district | # of links |
| Euphemia | 37 | 160 |
| Enniskillen | 20 | 5 |
| Townships 13 | 32 | 5 |
| Dawn | 6 | 5 |
| Townships 25 | 108 | 4 |
| Euphemia | 38 | 4 |
| Oil Springs | 64 | 4 |
| Brooke | 10 | 4 |
| Enniskillen | 26 | 4 |
| Enniskillen | 21 | 4 |
| Townships 9 | 26 | 4 |
| Petrolia | 53 | 3 |
| Dauphin | 41 | 3 |
| Townships 35 | 66 | 2 |
| Alvinston | 62 | 2 |
| Townships 27 | 116 | 2 |
| Norwich South | 15 | 2 |
| Sarnia | 46 | 1 |
| Southwold | 18 | 1 |
| Dawn | 5 | 1 |
| Enniskillen | 23 | 1 |
| Sombra | 41 | 1 |
| Zorra East | 26 | 1 |
| Brooke | 9 | 1 |
| East Dover poll district | 5 | 1 |