| Index | Maryville | Illinois | National |
| Average Test Scores | 65% | 33% | 48% |
| Student/Teacher ratio | 19:1 | 18:1 | 16:1 |
| Total public schools | 1 | 3,938 | 79,221 |
| Total private schools | 2 | 1,438 | 24,874 |
| Total post-secondary schools | n/a | 306 | 7,963 |
| Index | Maryville | Illinois | National |
| Completed 8th grade | 95.9% | 86.2% | 84.3% |
| Completed high school | 95.2% | 84.7% | 83.0% |
| Completed some college | 72.5% | 61.8% | 59.4% |
| Completed associate degree | 51.2% | 40.7% | 38.5% |
| Completed bachelors | 42.3% | 32.9% | 30.3% |
| Completed masters | 16.0% | 12.7% | 11.5% |
| Completed professional degree | 3.1% | 3.4% | 3.3% |
| Completed doctorate | 2.3% | 1.2% | 1.3% |
There are a total of 1 public schools, 2 private schools and n/a post-secondary schools in Maryville. Using the proficiency score averages, the average test scores for Maryville, IL schools is 65%. The average student to teacher ratio is 19:1. In Maryville, IL, an average of 95.9% of students have completed 8th grade and an average of 95.2% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| St. Jacob, IL | 1,529 | 67% | 39.6% |
| Glen Carbon, IL | 12,468 | 57% | 18.8% |
| Worden, IL | 875 | 57% | 18.8% |
| Alhambra, IL | 676 | 55% | 14.6% |
| Marine, IL | 994 | 55% | 13.5% |
| Maryville, IL | 7,962 | 65% | 34.4% |
| City | Population | Avg. Test Scores | National Avg. |
| Wendell, NC | 7,962 | 35% | 26.5% |
| Templeton, CA | 7,965 | 49% | 2.1% |
| Selah, WA | 7,957 | 46% | 4.6% |
| Hastings-on-Hudson, NY | 7,969 | 69% | 43.8% |
| Caldwell, NJ | 7,970 | 64% | 32.3% |
| Maryville, IL | 7,962 | 65% | 34.4% |
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