| Statistic | Saint-Joseph-du-Lac | Montréal | Quebec |
| Population | 7,302 | 1,811,008 | 8,565,732 |
| Population density (sq km) | 171 | 4,984 | 6 |
| Median age | 40.1 | 38.7 | 42.6 |
| Male/Female ratio | 0.9:1 | 1.0:1 | 1.0:1 |
| Married couples | 45% | 54% | 50% |
| Families w/ kids at home | 48% | 41% | 40% |
| Speak English only | 0.4% | 10.2% | 4.7% |
| Speak French only | 54.4% | 29.8% | 49.5% |
| Data | Percent |
| Black | 0.5% |
| Latin American | 0.4% |
| Chinese | 0.3% |
| Arab | 0.2% |
| Korean | 0.2% |
| Data | Percent |
| France | 0.5% |
| Italy | 0.2% |
| Romania | 0.2% |
| Lebanon | 0.2% |
| United States | 0.2% |
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