| Statistic | Vieux-Terrebonne | Terrebonne | Quebec |
| Population | 2,143 | 119,135 | 8,565,732 |
| Population density (sq km) | 3,607 | 755 | 6 |
| Median age | 50.6 | 40.1 | 42.6 |
| Male/Female ratio | 1.0:1 | 1.0:1 | 1.0:1 |
| Married couples | 40% | 46% | 50% |
| Families w/ kids at home | 23% | 48% | 40% |
| Speak English only | 0.1% | 0.5% | 4.7% |
| Speak French only | 57.7% | 56.4% | 49.5% |
| Data | Percent |
| Black | 5.4% |
| Latin American | 1.8% |
| South Asian | 1.2% |
| All Other Visible Minorities | 1.2% |
| Southeast Asian | 0.6% |
| Data | Percent |
| France | 1.6% |
| Haiti | 1.3% |
| Colombia | 0.8% |
| Peru | 0.5% |
| Other Oceania And Other | 0.3% |