| Statistic | Mattawan | Ontario | National |
| Population | 161 | 14,804,681 | 38,134,230 |
| Population density (sq km) | 1 | 15 | 4 |
| Median age | 57.0 | 40.9 | 40.9 |
| Male/Female ratio | 0.9:1 | 1.0:1 | 1.0:1 |
| Married couples | 74% | 71% | 66% |
| Families w/ kids at home | 26% | 46% | 43% |
| Speak English only | 54.9% | 86.1% | 68.8% |
| Speak French only | 0.6% | 0.3% | 4.5% |
| Data | Percent |
| Filipino | 11.0% |
| N/A | 0.0% |
| Data | Percent |
| United Kingdom | 5.5% |
| South Africa | 1.8% |
| Russia | 0.6% |
| Philippines | 0.6% |
| N/A | 0.0% |