| Statistic | Sainte-Catherine | Montréal | Quebec |
| Population | 17,815 | 1,811,008 | 8,565,732 |
| Population density (sq km) | 2,040 | 4,984 | 6 |
| Median age | 42.4 | 38.7 | 42.6 |
| Male/Female ratio | 1.0:1 | 1.0:1 | 1.0:1 |
| Married couples | 45% | 54% | 50% |
| Families w/ kids at home | 46% | 41% | 40% |
| Speak English only | 1.3% | 10.2% | 4.7% |
| Speak French only | 50.7% | 29.8% | 49.5% |
| Data | Percent |
| Black | 3.2% |
| Arab | 2.0% |
| Latin American | 1.8% |
| Chinese | 1.0% |
| All Other Visible Minorities | 0.3% |
| Data | Percent |
| Algeria | 0.7% |
| France | 0.6% |
| China | 0.5% |
| Morocco | 0.5% |
| Romania | 0.4% |