| Subdistrict | Enum. district | # of links |
| Dawn | 11 | 134 |
| Southwold | 20 | 10 |
| Dawn | 3 | 9 |
| Dresden | 40 | 9 |
| Townships 6 | 57 | 9 |
| Sombra | 35 | 6 |
| Dresden | 38 | 6 |
| Dawn | 1 | 5 |
| Chatham | 13 | 5 |
| Dresden | 39 | 5 |
| Camden Township | 3 | 4 |
| St. Thomas | 29 | 4 |
| Euphemia | 36 | 4 |
| Enniskillen | 20 | 3 |
| Sarnia | 45 | 3 |
| Wyoming | 57 | 3 |
| Tyendinaga | 29 | 2 |
| Sarnia | 44 | 2 |
| Southwold | 17 | 1 |
| Adelaide | 3 | 1 |
| Guilford and Dysart Townships | 26 | 1 |
| Townships 9 | 40 | 1 |
| Sombra | 41 | 1 |
| Howard | 21 | 1 |
| Windsor | 33 | 1 |
| Township 7 in ranges 19 | 54 | 1 |