| Statistic | Placentia | Newfoundland and Labrador | National |
| Population | 3,442 | 513,653 | 38,134,230 |
| Population density (sq km) | 57 | 1 | 4 |
| Median age | 54.1 | 46.3 | 40.9 |
| Male/Female ratio | 1.0:1 | 1.0:1 | 1.0:1 |
| Married couples | 72% | 70% | 66% |
| Families w/ kids at home | 35% | 39% | 43% |
| Speak English only | 98.0% | 94.6% | 68.8% |
| Speak French only | 0.0% | 0.0% | 4.5% |
| Data | Percent |
| Arab | 1.0% |
| South Asian | 0.8% |
| Chinese | 0.6% |
| Filipino | 0.3% |
| N/A | 0.0% |
| Data | Percent |
| United States | 0.2% |
| Egypt | 0.2% |
| Germany | 0.1% |
| Pakistan | 0.1% |
| Other Northern Africa | 0.1% |