| Statistic | Brookline | Longueuil | Quebec |
| Population | 4,178 | 249,920 | 8,565,732 |
| Population density (sq km) | 1,814 | 2,158 | 6 |
| Median age | 36.8 | 41.7 | 42.6 |
| Male/Female ratio | 0.9:1 | 1.0:1 | 1.0:1 |
| Married couples | 49% | 49% | 50% |
| Families w/ kids at home | 43% | 39% | 40% |
| Speak English only | 1.2% | 2.7% | 4.7% |
| Speak French only | 48.9% | 46.6% | 49.5% |
| Data | Percent |
| Black | 6.4% |
| Chinese | 1.3% |
| Southeast Asian | 1.3% |
| Arab | 1.1% |
| Latin American | 1.0% |
| Data | Percent |
| Algeria | 1.3% |
| France | 1.2% |
| China | 0.9% |
| Morocco | 0.8% |
| Cameroon | 0.7% |