| Statistic | South London | London | Ontario |
| Population | 14,233 | 421,456 | 14,804,681 |
| Population density (sq km) | 3,501 | 984 | 15 |
| Median age | 40.0 | 39.1 | 40.9 |
| Male/Female ratio | 1.1:1 | 1.1:1 | 1.0:1 |
| Married couples | 57% | 67% | 71% |
| Families w/ kids at home | 33% | 41% | 46% |
| Speak English only | 90.1% | 90.9% | 86.1% |
| Speak French only | 0.0% | 0.1% | 0.3% |
| Data | Percent |
| Black | 2.1% |
| Chinese | 1.0% |
| Latin American | 0.9% |
| South Asian | 0.8% |
| Filipino | 0.6% |
| Data | Percent |
| United Kingdom | 3.0% |
| United States | 0.7% |
| El Salvador | 0.5% |
| Germany | 0.4% |
| China | 0.3% |