| Index | Stewartsville | Missouri | National |
| Average Test Scores | 55% | 44% | 48% |
| Student/Teacher ratio | n/a | 14:1 | 16:1 |
| Total public schools | n/a | 1,899 | 79,221 |
| Total private schools | n/a | 531 | 24,874 |
| Total post-secondary schools | n/a | 213 | 7,963 |
| Index | Stewartsville | Missouri | National |
| Completed 8th grade | 84.0% | 86.0% | 84.3% |
| Completed high school | 84.0% | 84.2% | 83.0% |
| Completed some college | 39.6% | 57.7% | 59.4% |
| Completed associate degree | 21.0% | 35.2% | 38.5% |
| Completed bachelors | 14.6% | 27.6% | 30.3% |
| Completed masters | 2.2% | 10.4% | 11.5% |
| Completed professional degree | 0.3% | 2.8% | 3.3% |
| Completed doctorate | 0.0% | 1.2% | 1.3% |
There are a total of n/a public schools, n/a private schools and n/a post-secondary schools in Stewartsville. Using the proficiency score averages, the average test scores for Stewartsville, MO schools is 55%. The average student to teacher ratio is n/a. In Stewartsville, MO, an average of 84.0% of students have completed 8th grade and an average of 84.0% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Cosby, MO | 200 | 65% | 34.4% |
| Gower, MO | 1,661 | 52% | 8.9% |
| Cameron, MO | 8,941 | 51% | 6.9% |
| Osborn, MO | 402 | 50% | 4.2% |
| Easton, MO | 302 | 50% | 3.1% |
| Stewartsville, MO | 692 | 55% | 14.6% |
| City | Population | Avg. Test Scores | National Avg. |
| West Winfield, NY | 692 | 54% | 12.8% |
| Camden, MI | 692 | 38% | 21.4% |
| Verona, MO | 691 | 31% | 35.9% |
| Hannibal, NY | 693 | 47% | 2.4% |
| Bloomdale, OH | 693 | 71% | 47.9% |
| Stewartsville, MO | 692 | 55% | 14.6% |
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