| Statistic | Greenbelt | Kitchener | Ontario |
| Population | 991 | 259,162 | 14,804,681 |
| Population density (sq km) | 2,087 | 1,832 | 15 |
| Median age | 43.1 | 38.1 | 40.9 |
| Male/Female ratio | 1.1:1 | 1.0:1 | 1.0:1 |
| Married couples | 66% | 68% | 71% |
| Families w/ kids at home | 40% | 45% | 46% |
| Speak English only | 88.9% | 91.4% | 86.1% |
| Speak French only | 0.1% | 0.1% | 0.3% |
| Data | Percent |
| South Asian | 7.7% |
| Black | 2.8% |
| Arab | 2.2% |
| Chinese | 1.1% |
| Filipino | 1.1% |
| Data | Percent |
| Poland | 3.7% |
| Serbia | 2.4% |
| Other Eastern Europe | 2.2% |
| Ireland | 1.8% |
| Jamaica | 1.7% |