| Statistic | St.-Charles | Ontario | National |
| Population | 1,237 | 14,804,681 | 38,134,230 |
| Population density (sq km) | 4 | 15 | 4 |
| Median age | 55.9 | 40.9 | 40.9 |
| Male/Female ratio | 0.9:1 | 1.0:1 | 1.0:1 |
| Married couples | 70% | 71% | 66% |
| Families w/ kids at home | 25% | 46% | 43% |
| Speak English only | 43.0% | 86.1% | 68.8% |
| Speak French only | 2.0% | 0.3% | 4.5% |
| Data | Percent |
| Korean | 0.1% |
| N/A | 0.0% |
| Data | Percent |
| United Kingdom | 1.5% |
| Romania | 0.8% |
| Germany | 0.4% |
| United States | 0.3% |
| Czech Republic | 0.1% |