| Statistic | Streetsville | Mississauga | Ontario |
| Population | 12,201 | 764,342 | 14,804,681 |
| Population density (sq km) | 2,558 | 2,669 | 15 |
| Median age | 43.0 | 39.9 | 40.9 |
| Male/Female ratio | 1.1:1 | 1.0:1 | 1.0:1 |
| Married couples | 73% | 76% | 71% |
| Families w/ kids at home | 47% | 55% | 46% |
| Speak English only | 88.8% | 89.1% | 86.1% |
| Speak French only | 0.1% | 0.1% | 0.3% |
| Data | Percent |
| South Asian | 10.2% |
| Chinese | 6.8% |
| Black | 4.5% |
| Arab | 3.6% |
| Filipino | 3.2% |
| Data | Percent |
| United Kingdom | 3.1% |
| Philippines | 3.0% |
| Portugal | 2.9% |
| China | 2.9% |
| India | 2.2% |