| Statistic | Milton Heights | Milton | Ontario |
| Population | 354 | 142,128 | 14,804,681 |
| Population density (sq km) | 186 | 364 | 15 |
| Median age | 49.6 | 34.5 | 40.9 |
| Male/Female ratio | 0.7:1 | 1.0:1 | 1.0:1 |
| Married couples | 71% | 79% | 71% |
| Families w/ kids at home | 46% | 60% | 46% |
| Speak English only | 89.2% | 90.2% | 86.1% |
| Speak French only | 0.0% | 0.1% | 0.3% |
| Data | Percent |
| Latin American | 8.1% |
| South Asian | 3.1% |
| Multiple Visible Minorities | 1.9% |
| Korean | 0.8% |
| Arab | 0.6% |
| Data | Percent |
| United Kingdom | 3.6% |
| Italy | 3.3% |
| Colombia | 1.9% |
| Iran | 1.7% |
| Germany | 1.4% |