| Statistic | Merritton | St. Catharines | Ontario |
| Population | 5,043 | 140,913 | 14,804,681 |
| Population density (sq km) | 1,056 | 1,410 | 15 |
| Median age | 39.1 | 44.4 | 40.9 |
| Male/Female ratio | 1.0:1 | 1.1:1 | 1.0:1 |
| Married couples | 63% | 66% | 71% |
| Families w/ kids at home | 37% | 38% | 46% |
| Speak English only | 92.0% | 91.9% | 86.1% |
| Speak French only | 0.1% | 0.1% | 0.3% |
| Data | Percent |
| Chinese | 4.7% |
| South Asian | 3.0% |
| Black | 2.7% |
| West Asian | 1.9% |
| Filipino | 1.3% |
| Data | Percent |
| Italy | 1.9% |
| United Kingdom | 1.6% |
| Philippines | 1.0% |
| Syria | 0.8% |
| India | 0.8% |
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