| 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 | 1,354 | 67% | 39.2% |
| Worden, IL | 1,192 | 57% | 18.5% |
| Glen Carbon, IL | 12,782 | 57% | 18.5% |
| Alhambra, IL | 523 | 55% | 14.3% |
| Marine, IL | 872 | 55% | 13.3% |
| Maryville, IL | 7,837 | 65% | 34.0% |
| City | Population | Avg. Test Scores | National Avg. |
| Ruidoso, NM | 7,833 | 30% | 38.7% |
| Nantucket, MA | 7,830 | 46% | 4.8% |
| Oak Grove, MO | 7,844 | 49% | 2.5% |
| Wahpeton, ND | 7,844 | 30% | 38.7% |
| Olivette, MO | 7,830 | 70% | 44.4% |
| Maryville, IL | 7,837 | 65% | 34.0% |
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