| Statistic | Mayfair | Brantford | Ontario |
| Population | 5,991 | 105,103 | 14,804,681 |
| Population density (sq km) | 2,039 | 1,437 | 15 |
| Median age | 45.7 | 40.7 | 40.9 |
| Male/Female ratio | 1.0:1 | 1.1:1 | 1.0:1 |
| Married couples | 75% | 63% | 71% |
| Families w/ kids at home | 45% | 41% | 46% |
| Speak English only | 96.0% | 94.5% | 86.1% |
| Speak French only | 0.0% | 0.0% | 0.3% |
| Data | Percent |
| Black | 1.1% |
| South Asian | 1.0% |
| Chinese | 0.4% |
| Southeast Asian | 0.4% |
| N/A | 0.0% |
| Data | Percent |
| United Kingdom | 2.7% |
| Poland | 1.4% |
| Italy | 0.7% |
| Netherlands | 0.7% |
| Pakistan | 0.6% |