| Index | Sidell | Illinois | National |
| Average Test Scores | 26% | 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 | Sidell | Illinois | National |
| Completed 8th grade | 78.0% | 86.2% | 84.3% |
| Completed high school | 77.5% | 84.7% | 83.0% |
| Completed some college | 30.0% | 61.8% | 59.4% |
| Completed associate degree | 15.9% | 40.7% | 38.5% |
| Completed bachelors | 5.8% | 32.9% | 30.3% |
| Completed masters | 0.8% | 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 Sidell. Using the proficiency score averages, the average test scores for Sidell, IL schools is 26%. The average student to teacher ratio is n/a. In Sidell, IL, an average of 78.0% of students have completed 8th grade and an average of 77.5% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| St. Joseph, IL | 4,053 | 52% | 7.6% |
| Ogden, IL | 773 | 42% | 12.5% |
| Homer, IL | 1,320 | 37% | 22.9% |
| Catlin, IL | 1,972 | 32% | 33.3% |
| Chrisman, IL | 1,632 | 28% | 41.3% |
| Sidell, IL | 492 | 26% | 46.4% |
| City | Population | Avg. Test Scores | National Avg. |
| Bailey, NC | 492 | 33% | 31.3% |
| Aguilar, CO | 492 | 21% | 55.7% |
| Salem, IA | 492 | 85% | 77.1% |
| Breckenridge, MO | 492 | 33% | 32.3% |
| Ashland, MS | 492 | 31% | 35.9% |
| Sidell, IL | 492 | 26% | 46.4% |
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