| Statistic | Rennies Mill | St. John's | Newfoundland and Labrador |
| Population | 149 | 109,566 | 513,653 |
| Population density (sq km) | 2,422 | 256 | 1 |
| Median age | 38.8 | 39.7 | 46.3 |
| Male/Female ratio | 0.6:1 | 1.1:1 | 1.0:1 |
| Married couples | 61% | 64% | 70% |
| Families w/ kids at home | 34% | 38% | 39% |
| Speak English only | 78.3% | 90.1% | 94.6% |
| Speak French only | 0.0% | 0.0% | 0.0% |
| Data | Percent |
| Black | 7.2% |
| Filipino | 1.2% |
| West Asian | 0.6% |
| South Asian | 0.6% |
| N/A | 0.0% |
| Data | Percent |
| South Africa | 2.4% |
| Italy | 1.8% |
| Sri Lanka | 1.8% |
| France | 1.2% |
| Nigeria | 0.6% |