| Statistic | Deer Lake | Newfoundland and Labrador | National |
| Population | 5,214 | 513,653 | 38,134,230 |
| Population density (sq km) | 72 | 1 | 4 |
| Median age | 47.9 | 46.3 | 40.9 |
| Male/Female ratio | 1.1:1 | 1.0:1 | 1.0:1 |
| Married couples | 72% | 70% | 66% |
| Families w/ kids at home | 36% | 39% | 43% |
| Speak English only | 98.2% | 94.6% | 68.8% |
| Speak French only | 0.0% | 0.0% | 4.5% |
| Data | Percent |
| South Asian | 0.9% |
| Black | 0.4% |
| Chinese | 0.3% |
| Filipino | 0.3% |
| N/A | 0.0% |
| Data | Percent |
| United Kingdom | 0.3% |
| Philippines | 0.2% |
| China | 0.1% |
| United States | 0.1% |
| India | 0.1% |