| Subdistrict | Enum. district | # of links |
| Louth | 29 | 94 |
| St. Catharines | 36 | 12 |
| St. Catharines | 44 | 10 |
| Niagara Falls | 48 | 7 |
| St. Catharines | 47 | 6 |
| Saltfleet Township | 47 | 6 |
| Stamford | 26 | 5 |
| Louth | 31 | 5 |
| St. Catharines | 41 | 3 |
| Grantham | 20 | 3 |
| Pelham | 17 | 3 |
| Thorold | 35 | 2 |
| Stamford | 27 | 1 |
| Welland | 53 | 1 |
| Louth | 30 | 1 |
| Humberstone | 11 | 1 |