| Subdistrict | Enum. district | # of links |
| McGillivray | 18 | 86 |
| Ailsa Craig | 31 | 14 |
| McGillivray | 20 | 7 |
| Plympton | 24 | 6 |
| McGillivray | 19 | 6 |
| Sarnia | 32 | 6 |
| London Township | 8 | 5 |
| McGillivray | 15 | 4 |
| Biddulph | 5 | 3 |
| Yarmouth | 18 | 3 |
| Williams East | 22 | 2 |
| Townships 30 | 1 | 1 |
| Townships 17 | 20 | 1 |
| Townships 39 | 22 | 1 |
| Lucan | 32 | 1 |
| Williams West | 26 | 1 |
| Lobo | 13 | 1 |
| Exeter | 38 | 1 |