| Statistic | Milton | Ontario | National |
| Population | 142,128 | 14,804,681 | 38,134,230 |
| Population density (sq km) | 364 | 15 | 4 |
| Median age | 34.5 | 40.9 | 40.9 |
| Male/Female ratio | 1.0:1 | 1.0:1 | 1.0:1 |
| Married couples | 79% | 71% | 66% |
| Families w/ kids at home | 60% | 46% | 43% |
| Speak English only | 90.2% | 86.1% | 68.8% |
| Speak French only | 0.1% | 0.3% | 4.5% |
| Data | Percent |
| South Asian | 25.4% |
| Black | 5.5% |
| Arab | 4.2% |
| Filipino | 3.6% |
| Latin American | 2.7% |
| Data | Percent |
| Pakistan | 6.6% |
| India | 5.0% |
| Philippines | 2.5% |
| United Kingdom | 2.1% |
| Poland | 1.3% |