| Statistic | Duhamel | Quebec | National |
| Population | 425 | 8,565,732 | 38,134,230 |
| Population density (sq km) | 1 | 6 | 4 |
| Median age | 64.3 | 42.6 | 40.9 |
| Male/Female ratio | 0.9:1 | 1.0:1 | 1.0:1 |
| Married couples | 67% | 50% | 66% |
| Families w/ kids at home | 13% | 40% | 43% |
| Speak English only | 1.6% | 4.7% | 68.8% |
| Speak French only | 53.8% | 49.5% | 4.5% |
| Data | Percent |
| N/A | 0.0% |
| Data | Percent |
| France | 2.3% |
| Congo, The Democratic Republic of The | 0.5% |
| Colombia | 0.2% |
| United Kingdom | 0.2% |
| N/A | 0.0% |