| Index | Mary's Harbour | Newfoundland and Labrador | National |
| Average School Score | n/a | n/a | 66.1 |
| Total public schools | 1 | 249 | 17,366 |
| Index | Mary's Harbour | Newfoundland and Labrador | National |
| No certificate, diploma or degree | 44.0% | 22.1% | 16.7% |
| High School certificate or equivalent | 56.0% | 78.0% | 83.3% |
| Apprenticeship or trades certificate | 39.0% | 52.6% | 56.8% |
| College or other non-university diploma | 20.9% | 41.7% | 47.4% |
| University certificate or below bachelor | 7.5% | 17.9% | 27.5% |
| Bachelor's degree | 7.5% | 15.9% | 25.1% |
| Above bachelor's degree | 0.0% | 5.2% | 8.1% |
| City | Population | Avg. School Score | National Avg. |
| Mary's Harbour, NL | 324 | n/a |
| City | Population | Avg. School Score | National Avg. |
| Myrnam, AB | 333 | 64.7 | 2.2% |
| Big Valley, AB | 335 | 66.6 | 0.7% |
| Vilna, AB | 339 | 42.0 | 36.6% |
| Chauvin, AB | 340 | 60.2 | 9.0% |
| Champion, AB | 305 | 64.6 | 2.4% |
| Mary's Harbour, NL | 324 | n/a |