| Statistic | Harmonie | Boucherville | Quebec |
| Population | 5,027 | 42,869 | 8,565,732 |
| Population density (sq km) | 2,158 | 594 | 6 |
| Median age | 53.2 | 47.5 | 42.6 |
| Male/Female ratio | 1.1:1 | 1.0:1 | 1.0:1 |
| Married couples | 62% | 54% | 50% |
| Families w/ kids at home | 37% | 42% | 40% |
| Speak English only | 0.2% | 0.5% | 4.7% |
| Speak French only | 34.2% | 39.3% | 49.5% |
| Data | Percent |
| Chinese | 1.6% |
| Black | 1.0% |
| Arab | 1.0% |
| Southeast Asian | 0.9% |
| Latin American | 0.5% |
| Data | Percent |
| France | 0.7% |
| Algeria | 0.5% |
| Other Eastern Europe | 0.4% |
| Other Southeastern Asia | 0.4% |
| Egypt | 0.4% |