| Index | Marshall | Illinois | National |
| Average Test Scores | 34% | 33% | 48% |
| Student/Teacher ratio | 19:1 | 18:1 | 16:1 |
| Total public schools | 5 | 3,938 | 79,221 |
| Total private schools | n/a | 1,438 | 24,874 |
| Total post-secondary schools | n/a | 306 | 7,963 |
| Index | Marshall | Illinois | National |
| Completed 8th grade | 86.4% | 86.2% | 84.3% |
| Completed high school | 82.4% | 84.7% | 83.0% |
| Completed some college | 52.7% | 61.8% | 59.4% |
| Completed associate degree | 27.4% | 40.7% | 38.5% |
| Completed bachelors | 16.0% | 32.9% | 30.3% |
| Completed masters | 4.2% | 12.7% | 11.5% |
| Completed professional degree | 1.0% | 3.4% | 3.3% |
| Completed doctorate | 0.5% | 1.2% | 1.3% |
There are a total of 5 public schools, n/a private schools and n/a post-secondary schools in Marshall. Using the proficiency score averages, the average test scores for Marshall, IL schools is 34%. The average student to teacher ratio is 19:1. In Marshall, IL, an average of 86.4% of students have completed 8th grade and an average of 82.4% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| West Terre Haute, IN | 2,193 | 44% | 8.5% |
| Terre Haute, IN | 60,690 | 43% | 10.9% |
| Kansas, IL | 771 | 20% | 58.3% |
| Martinsville, IL | 1,259 | 16% | 66.7% |
| Marshall, IL | 3,615 | 34% | 29.5% |
| City | Population | Avg. Test Scores | National Avg. |
| Wyldwood, TX | 3,615 | 32% | 33.3% |
| Wills Point, TX | 3,614 | 41% | 14.6% |
| South Glens Falls, NY | 3,612 | 56% | 15.6% |
| Ozark, AR | 3,618 | 44% | 8.1% |
| Goldendale, WA | 3,612 | 45% | 5.9% |
| Marshall, IL | 3,615 | 34% | 29.5% |
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