| Index | Manlius | Illinois | National |
| Average Test Scores | 32% | 33% | 48% |
| Student/Teacher ratio | n/a | 18:1 | 16:1 |
| Total public schools | n/a | 3,938 | 79,221 |
| Total private schools | n/a | 1,438 | 24,874 |
| Total post-secondary schools | n/a | 306 | 7,963 |
| Index | Manlius | Illinois | National |
| Completed 8th grade | 84.7% | 86.2% | 84.3% |
| Completed high school | 84.7% | 84.7% | 83.0% |
| Completed some college | 45.2% | 61.8% | 59.4% |
| Completed associate degree | 17.6% | 40.7% | 38.5% |
| Completed bachelors | 6.1% | 32.9% | 30.3% |
| Completed masters | 1.1% | 12.7% | 11.5% |
| Completed professional degree | 0.0% | 3.4% | 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 Manlius. Using the proficiency score averages, the average test scores for Manlius, IL schools is 32%. The average student to teacher ratio is n/a. In Manlius, IL, an average of 84.7% of students have completed 8th grade and an average of 84.7% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Ohio, IL | 509 | 48% | 1.0% |
| Annawan, IL | 825 | 36% | 25.0% |
| Tampico, IL | 771 | 35% | 28.1% |
| Princeton, IL | 7,589 | 33% | 30.9% |
| Prophetstown, IL | 1,965 | 33% | 30.9% |
| Manlius, IL | 274 | 32% | 33.3% |
| City | Population | Avg. Test Scores | National Avg. |
| Gamaliel, KY | 274 | 82% | 70.8% |
| Grinnell, KS | 274 | 38% | 21.9% |
| Kilbourne, LA | 274 | 57% | 18.8% |
| Perry, IL | 274 | 20% | 59.4% |
| Diller, NE | 273 | 72% | 50.0% |
| Manlius, IL | 274 | 32% | 33.3% |
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