| Statistic | Sacré-Coeur | Longueuil | Quebec |
| Population | 22,346 | 249,920 | 8,565,732 |
| Population density (sq km) | 5,184 | 2,158 | 6 |
| Median age | 39.2 | 41.7 | 42.6 |
| Male/Female ratio | 1.0:1 | 1.0:1 | 1.0:1 |
| Married couples | 46% | 49% | 50% |
| Families w/ kids at home | 39% | 39% | 40% |
| Speak English only | 1.4% | 2.7% | 4.7% |
| Speak French only | 56.4% | 46.6% | 49.5% |
| Data | Percent |
| Black | 16.9% |
| Arab | 4.7% |
| Latin American | 4.5% |
| Southeast Asian | 1.0% |
| Chinese | 0.9% |
| Data | Percent |
| Haiti | 2.9% |
| Côte d'Ivoire | 2.4% |
| Algeria | 2.0% |
| Morocco | 1.7% |
| Cameroon | 1.6% |