| Subdistrict | Enum. district | # of links |
| Chatham | 15 | 209 |
| Chatham | 9 | 33 |
| Chatham | 13 | 16 |
| Chatham | 44 | 16 |
| Dover | 7 | 11 |
| Chatham | 12 | 9 |
| Chatham | 54 | 9 |
| Chatham | 7 | 8 |
| Chatham | 51 | 8 |
| Chatham Township | 16 | 8 |
| Township 3 in range 5 west of the 1st M | 26 | 7 |
| Chatham | 47 | 7 |
| Camden Township | 3 | 6 |
| Townships 29 | 6 | 6 |
| Tilbury East | 38 | 5 |
| Chatham | 53 | 5 |
| Colchester North | 6 | 5 |
| Caledonia | 40 | 5 |
| Sheffield Township | 12 | 4 |
| Dresden | 39 | 3 |
| Euphemia | 38 | 3 |
| Chatham | 43 | 3 |
| Raleigh | 24 | 3 |
| Chatham | 49 | 3 |
| Dover | 4 | 2 |
| Chatham | 57 | 2 |
| Dresden | 40 | 2 |
| Townships 16 | 15 | 2 |
| Harwich | 19 | 2 |
| Raleigh | 21 | 2 |
| Chatham | 52 | 2 |
| Chatham Township | 8 | 1 |
| Normanby | 20 | 1 |
| Dover | 6 | 1 |
| Chatham | 58 | 1 |
| Tilbury East | 40 | 1 |
| Chatham | 55 | 1 |
| Chatham | 10 | 1 |
| Wallaceburg | 45 | 1 |
| London | 17 | 1 |