| Statistic | Quartier Côte Saint-Louis | Blainville | Quebec |
| Population | 6,133 | 59,647 | 8,565,732 |
| Population density (sq km) | 556 | 1,098 | 6 |
| Median age | 39.1 | 40.3 | 42.6 |
| Male/Female ratio | 1.0:1 | 1.0:1 | 1.0:1 |
| Married couples | 45% | 48% | 50% |
| Families w/ kids at home | 47% | 52% | 40% |
| Speak English only | 0.7% | 0.8% | 4.7% |
| Speak French only | 48.0% | 44.0% | 49.5% |
| Data | Percent |
| Black | 3.3% |
| Arab | 1.9% |
| Southeast Asian | 1.4% |
| Latin American | 1.3% |
| Multiple Visible Minorities | 0.6% |
| Data | Percent |
| Lebanon | 1.0% |
| France | 0.9% |
| Portugal | 0.8% |
| Algeria | 0.7% |
| Haiti | 0.5% |