| Subdistrict | Enum. district | # of links |
| Brooke | 11 | 229 |
| Alvinston | 62 | 29 |
| Alvinston | 61 | 10 |
| Brooke | 12 | 9 |
| Brooke | 10 | 8 |
| Sarnia | 50 | 6 |
| Township 40 in range 8 west of the 3rd M | 19 | 5 |
| Brooke | 8 | 5 |
| Mosa | 24 | 5 |
| Moore | 20 | 4 |
| Brooke | 13 | 4 |
| Glencoe | 36 | 4 |
| Dawn | 5 | 3 |
| Metcalfe Township | 21 | 3 |
| Glencoe | 37 | 3 |
| Evanturel | 52 | 3 |
| Enniskillen | 35 | 3 |
| Metcalfe | 23 | 2 |
| Brooke | 9 | 2 |
| Nanton | 31 | 2 |
| Enniskillen | 26 | 1 |
| Waterloo | 44 | 1 |
| Malahide | 12 | 1 |
| London | 3 | 1 |
| Sarnia | 46 | 1 |
| Enniskillen | 24 | 1 |