| Statistic | Dieppe | New Brunswick | National |
| Population | 27,260 | 779,582 | 38,134,230 |
| Population density (sq km) | 478 | 11 | 4 |
| Median age | 38.8 | 45.7 | 40.9 |
| Male/Female ratio | 1.0:1 | 1.0:1 | 1.0:1 |
| Married couples | 64% | 66% | 66% |
| Families w/ kids at home | 43% | 37% | 43% |
| Speak English only | 17.2% | 57.5% | 68.8% |
| Speak French only | 9.1% | 7.9% | 4.5% |
| Data | Percent |
| Black | 1.6% |
| Chinese | 0.8% |
| Filipino | 0.6% |
| Korean | 0.5% |
| Arab | 0.4% |
| Data | Percent |
| United States | 1.0% |
| France | 0.5% |
| South Korea | 0.4% |
| Philippines | 0.4% |
| United Kingdom | 0.2% |