| Statistic | Amaranth | Ontario | National |
| Population | 4,403 | 14,804,681 | 38,134,230 |
| Population density (sq km) | 17 | 15 | 4 |
| Median age | 44.5 | 40.9 | 40.9 |
| Male/Female ratio | 0.9:1 | 1.0:1 | 1.0:1 |
| Married couples | 78% | 71% | 66% |
| Families w/ kids at home | 52% | 46% | 43% |
| Speak English only | 93.5% | 86.1% | 68.8% |
| Speak French only | 0.0% | 0.3% | 4.5% |
| Data | Percent |
| Black | 2.3% |
| South Asian | 1.4% |
| Multiple Visible Minorities | 1.2% |
| Chinese | 1.1% |
| All Other Visible Minorities | 0.7% |
| Data | Percent |
| United Kingdom | 2.5% |
| Netherlands | 2.1% |
| Portugal | 1.3% |
| Italy | 1.2% |
| Jamaica | 1.1% |