| Statistic | St. Clair | Hamilton | Ontario |
| Population | 3,158 | 11,739 | 14,804,681 |
| Population density (sq km) | 4,406 | 518 | 15 |
| Median age | 37.4 | 40.5 | 40.9 |
| Male/Female ratio | 0.9:1 | 1.0:1 | 1.0:1 |
| Married couples | 52% | 68% | 71% |
| Families w/ kids at home | 37% | 44% | 46% |
| Speak English only | 90.1% | 92.3% | 86.1% |
| Speak French only | 0.0% | 0.1% | 0.3% |
| Data | Percent |
| Black | 4.1% |
| Latin American | 3.2% |
| Arab | 2.7% |
| South Asian | 2.1% |
| Filipino | 1.6% |
| Data | Percent |
| United Kingdom | 2.0% |
| Philippines | 1.3% |
| United States | 1.3% |
| Poland | 1.3% |
| El Salvador | 0.9% |