| Statistic | Greenbrier | Brantford | Ontario |
| Population | 2,733 | 105,103 | 14,804,681 |
| Population density (sq km) | 2,143 | 1,437 | 15 |
| Median age | 48.9 | 40.7 | 40.9 |
| Male/Female ratio | 1.1:1 | 1.1:1 | 1.0:1 |
| Married couples | 83% | 63% | 71% |
| Families w/ kids at home | 45% | 41% | 46% |
| Speak English only | 94.0% | 94.5% | 86.1% |
| Speak French only | 0.1% | 0.0% | 0.3% |
| Data | Percent |
| South Asian | 4.5% |
| Chinese | 1.3% |
| Filipino | 1.2% |
| Southeast Asian | 1.2% |
| Black | 0.9% |
| Data | Percent |
| United Kingdom | 3.4% |
| Italy | 2.3% |
| Philippines | 1.1% |
| India | 1.0% |
| Ireland | 1.0% |
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