| Statistic | Déline | Northwest Territories | National |
| Population | 547 | 44,821 | 38,134,230 |
| Population density (sq km) | 7 | 0 | 4 |
| Median age | 33.4 | 34.6 | 40.9 |
| Male/Female ratio | 0.9:1 | 1.0:1 | 1.0:1 |
| Married couples | 40% | 50% | 66% |
| Families w/ kids at home | 42% | 48% | 43% |
| Speak English only | 96.8% | 88.9% | 68.8% |
| Speak French only | 0.0% | 0.2% | 4.5% |
| Data | Percent |
| Chinese | 0.4% |
| Filipino | 0.4% |
| N/A | 0.0% |
| Data | Percent |
| United Kingdom | 0.9% |
| Philippines | 0.4% |
| United States | 0.4% |
| India | 0.2% |
| Guyana | 0.2% |