| Statistic | Mountain | Niagara Falls | Ontario |
| Population | 30 | 95,282 | 14,804,681 |
| Population density (sq km) | 73 | 436 | 15 |
| Median age | 52.7 | 45.0 | 40.9 |
| Male/Female ratio | 0.7:1 | 1.1:1 | 1.0:1 |
| Married couples | 85% | 66% | 71% |
| Families w/ kids at home | 35% | 40% | 46% |
| Speak English only | 90.3% | 91.9% | 86.1% |
| Speak French only | 0.0% | 0.1% | 0.3% |
| Data | Percent |
| N/A | 0.0% |
| Data | Percent |
| Italy | 4.9% |
| United Kingdom | 3.9% |
| Iran | 2.9% |
| Guyana | 1.9% |
| Romania | 1.9% |