| Statistic | Dubreuilville | Ontario | National |
| Population | 646 | 14,804,681 | 38,134,230 |
| Population density (sq km) | 6 | 15 | 4 |
| Median age | 43.2 | 40.9 | 40.9 |
| Male/Female ratio | 0.9:1 | 1.0:1 | 1.0:1 |
| Married couples | 57% | 71% | 66% |
| Families w/ kids at home | 48% | 46% | 43% |
| Speak English only | 7.9% | 86.1% | 68.8% |
| Speak French only | 25.0% | 0.3% | 4.5% |
| Data | Percent |
| Black | 5.8% |
| N/A | 0.0% |
| Data | Percent |
| Ireland | 0.2% |
| Romania | 0.2% |
| Australia | 0.2% |
| Netherlands | 0.2% |
| Other South America | 0.2% |