| Subdistrict | Enum. district | # of links |
| Sombra | 41 | 300 |
| Sombra | 39 | 38 |
| Sombra | 43 | 18 |
| Sombra | 36 | 12 |
| Chatham | 14 | 7 |
| Chatham | 54 | 6 |
| Chatham | 43 | 6 |
| Sarnia | 50 | 4 |
| Southwold | 17 | 3 |
| Wallaceburg | 47 | 3 |
| Chatham | 17 | 3 |
| Kinloss | 47 | 3 |
| Walpole Island Indian Reserve | 59 | 3 |
| Sombra | 35 | 3 |
| Dorchester North Township | 2 | 2 |
| Toronto | 34 | 2 |
| Brooke | 14 | 2 |
| St. Albert | 4 | 2 |
| Point Edward | 60 | 2 |
| Wallaceburg | 46 | 2 |
| Chatham | 12 | 1 |
| Stephen | 19 | 1 |
| Camden | 6 | 1 |
| Chatham | 45 | 1 |
| Moore | 19 | 1 |
| Petrolia | 58 | 1 |
| Sombra | 42 | 1 |
| Townships 25 | 67 | 1 |