| Statistic | Lac-Ashuapmushuan | Quebec | National |
| Population | 37 | 8,565,732 | 38,134,230 |
| Population density (sq km) | 0 | 6 | 4 |
| Median age | 35.0 | 42.6 | 40.9 |
| Male/Female ratio | 0.5:1 | 1.0:1 | 1.0:1 |
| Married couples | 50% | 50% | 66% |
| Families w/ kids at home | 50% | 40% | 43% |
| Speak English only | 0.0% | 4.7% | 68.8% |
| Speak French only | 52.6% | 49.5% | 4.5% |
| Data | Percent |
| N/A | 0.0% |
| Data | Percent |
| Italy | 7.9% |
| Mexico | 7.9% |
| Other Central America | 7.9% |
| Haiti | 2.6% |
| Colombia | 2.6% |