| Statistic | Mendham | Saskatchewan | National |
| Population | 28 | 1,188,823 | 38,134,230 |
| Population density (sq km) | 57 | 2 | 4 |
| Median age | 38.7 | 37.1 | 40.9 |
| Male/Female ratio | 0.7:1 | 1.0:1 | 1.0:1 |
| Married couples | 80% | 70% | 66% |
| Families w/ kids at home | 0% | 41% | 43% |
| Speak English only | 89.7% | 94.3% | 68.8% |
| Speak French only | 0.0% | 0.1% | 4.5% |
| Data | Percent |
| N/A | 0.0% |
| Data | Percent |
| Japan | 10.3% |
| Kenya | 3.5% |
| France | 3.5% |
| Guyana | 3.5% |
| Bangladesh | 3.5% |