| Statistic | Carlton | St. Catharines | Ontario |
| Population | 10,807 | 140,913 | 14,804,681 |
| Population density (sq km) | 3,078 | 1,410 | 15 |
| Median age | 42.8 | 44.4 | 40.9 |
| Male/Female ratio | 1.1:1 | 1.1:1 | 1.0:1 |
| Married couples | 63% | 66% | 71% |
| Families w/ kids at home | 37% | 38% | 46% |
| Speak English only | 92.9% | 91.9% | 86.1% |
| Speak French only | 0.0% | 0.1% | 0.3% |
| Data | Percent |
| Latin American | 4.8% |
| Black | 3.6% |
| Chinese | 2.4% |
| Filipino | 1.8% |
| Southeast Asian | 1.2% |
| Data | Percent |
| Italy | 3.0% |
| United Kingdom | 2.8% |
| Poland | 2.2% |
| Colombia | 1.6% |
| Philippines | 1.5% |