| Statistic | Tétreaultville | Montréal | Quebec |
| Population | 20,117 | 1,811,008 | 8,565,732 |
| Population density (sq km) | 7,375 | 4,984 | 6 |
| Median age | 42.3 | 38.7 | 42.6 |
| Male/Female ratio | 1.0:1 | 1.0:1 | 1.0:1 |
| Married couples | 43% | 54% | 50% |
| Families w/ kids at home | 34% | 41% | 40% |
| Speak English only | 1.5% | 10.2% | 4.7% |
| Speak French only | 51.8% | 29.8% | 49.5% |
| Data | Percent |
| Black | 10.4% |
| Latin American | 4.4% |
| Arab | 3.8% |
| Southeast Asian | 2.6% |
| Chinese | 1.3% |
| Data | Percent |
| Haiti | 2.5% |
| Algeria | 2.4% |
| Italy | 1.5% |
| France | 1.4% |
| Morocco | 1.0% |