| Subdistrict | Enum. district | # of links |
| Dawn | 2 | 84 |
| Dawn | 5 | 14 |
| Dawn | 3 | 10 |
| Townships 7 | 23 | 6 |
| Sarnia | 44 | 4 |
| Townships 9 | 25 | 4 |
| Bracebridge | 19 | 4 |
| St. Thomas | 34 | 3 |
| Thamesville | 48 | 3 |
| Strathroy | 33 | 3 |
| Townships 6 | 57 | 3 |
| Camden Township | 3 | 3 |
| Petrolia | 55 | 2 |
| Petrolia | 57 | 2 |
| Saskatoon | 33 | 2 |
| Dawn | 11 | 2 |
| Petrolia | 53 | 2 |
| London Township | 9 | 1 |