| Statistic | Rosemère | Montréal | Quebec |
| Population | 14,062 | 1,811,008 | 8,565,732 |
| Population density (sq km) | 1,318 | 4,984 | 6 |
| Median age | 47.8 | 38.7 | 42.6 |
| Male/Female ratio | 1.0:1 | 1.0:1 | 1.0:1 |
| Married couples | 59% | 54% | 50% |
| Families w/ kids at home | 50% | 41% | 40% |
| Speak English only | 3.6% | 10.2% | 4.7% |
| Speak French only | 26.6% | 29.8% | 49.5% |
| Data | Percent |
| Black | 1.6% |
| Latin American | 1.4% |
| Arab | 1.2% |
| Chinese | 0.9% |
| Southeast Asian | 0.4% |
| Data | Percent |
| France | 1.7% |
| Italy | 0.7% |
| Lebanon | 0.7% |
| Colombia | 0.6% |
| Algeria | 0.5% |