| Subdistrict | Enum. district | # of links |
| Biddulph | 7 | 283 |
| Blanchard | 4 | 8 |
| Township 5 in range 21 west of the 1st M | 32 | 6 |
| London | 8 | 6 |
| London | 11 | 4 |
| London | 12 | 4 |
| Blanchard Township | 6 | 4 |
| London | 33 | 4 |
| Blanchard | 3 | 4 |
| Nissouri West | 17 | 4 |
| London | 40 | 3 |
| Biddulph | 9 | 3 |
| London | 43 | 3 |
| Nissouri East | 22 | 3 |
| London Township | 11 | 3 |
| London Township | 8 | 3 |
| Lucan | 32 | 2 |
| London Township | 6 | 2 |
| Tay | 23 | 1 |
| London | 23 | 1 |
| Lucan | 33 | 1 |
| Stephen | 20 | 1 |
| London | 5 | 1 |
| London | 32 | 1 |
| London | 37 | 1 |
| Forest | 49 | 1 |