| Subdistrict | Enum. district | # of links |
| Parkhill | 29 | 109 |
| Parkhill | 28 | 25 |
| Parkhill | 30 | 18 |
| Sarnia | 50 | 9 |
| London | 11 | 5 |
| McIrvine | 76 | 5 |
| Dresden | 40 | 5 |
| Townships 36 | 13 | 5 |
| Toronto | 29 | 5 |
| Bayham | 5 | 4 |
| Dundas | 51 | 3 |
| Clinton | 17 | 3 |
| Sarnia | 51 | 2 |
| Shelburne | 24 | 2 |
| Guelph | 32 | 2 |
| London | 37 | 2 |
| Owen Sound | 51 | 2 |
| Edmonton | 49 | 2 |
| Grantham | 19 | 2 |
| Stratford | 37 | 1 |
| Comox | 15 | 1 |
| Norwick | 39 | 1 |
| Preston | 24 | 1 |
| London Township | 6 | 1 |
| McGillivray | 20 | 1 |
| Osnabruck | 23 | 1 |
| Oshawa | 35 | 1 |
| Caledon | 12 | 1 |
| Gore Bay | 64 | 1 |
| London | 4 | 1 |