| Subdistrict | Enum. district | # of links |
| Adelaide | 1 | 223 |
| Strathroy | 31 | 12 |
| Strathroy | 35 | 9 |
| Arkona | 63 | 8 |
| Adelaide | 3 | 7 |
| Metcalfe Township | 21 | 5 |
| Warwick | 43 | 4 |
| Strathroy | 30 | 4 |
| Bosanquet | 3 | 4 |
| Strathroy | 33 | 3 |
| Caradoc | 5 | 3 |
| Warwick | 42 | 3 |
| Strathroy | 32 | 3 |
| Warwick | 48 | 2 |
| Adelaide | 2 | 2 |
| Alvinston | 61 | 1 |
| Forest | 51 | 1 |
| Sarnia | 51 | 1 |
| Biddulph | 8 | 1 |
| Strathroy | 34 | 1 |
| Watford | 67 | 1 |
| Williams East | 23 | 1 |
| King | 18 | 1 |
| Lancaster Parish | 1 | 1 |
| Adelaide | 4 | 1 |
| Bosanquet | 1 | 1 |
| London | 30 | 1 |
| Biddulph | 6 | 1 |
| Warwick | 44 | 1 |