| Subdistrict | Enum. district | # of links |
| Grantham | 17 | 218 |
| St. Catharines | 43 | 15 |
| Louth | 29 | 9 |
| Grantham | 18 | 8 |
| St. Catharines | 46 | 6 |
| Niagara | 33 | 6 |
| St. Catharines | 41 | 6 |
| St. Catharines | 42 | 5 |
| Merritton | 53 | 5 |
| Louth | 31 | 4 |
| Merritton | 55 | 4 |
| St. Catharines | 40 | 3 |
| Thorold | 33 | 2 |
| St. Catharines | 45 | 2 |
| Niagara Falls | 47 | 2 |
| Springfield | 29 | 1 |
| Niagara | 34 | 1 |
| Clinton | 7 | 1 |
| Galt | 16 | 1 |
| Plympton | 25 | 1 |
| Grimsby South | 26 | 1 |
| Pelham | 23 | 1 |
| St. Catharines | 47 | 1 |