| Index | Lewistown | Illinois | National |
| Average Test Scores | 21% | 33% | 48% |
| Student/Teacher ratio | 16:1 | 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 | Lewistown | Illinois | National |
| Completed 8th grade | 82.7% | 86.2% | 84.3% |
| Completed high school | 80.7% | 84.7% | 83.0% |
| Completed some college | 49.5% | 61.8% | 59.4% |
| Completed associate degree | 20.8% | 40.7% | 38.5% |
| Completed bachelors | 11.3% | 32.9% | 30.3% |
| Completed masters | 2.5% | 12.7% | 11.5% |
| Completed professional degree | 0.5% | 3.4% | 3.3% |
| Completed doctorate | 0.2% | 1.2% | 1.3% |
There are a total of 5 public schools, n/a private schools and n/a post-secondary schools in Lewistown. Using the proficiency score averages, the average test scores for Lewistown, IL schools is 21%. The average student to teacher ratio is 16:1. In Lewistown, IL, an average of 82.7% of students have completed 8th grade and an average of 80.7% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Canton, IL | 13,600 | 33% | 31.5% |
| Havana, IL | 3,178 | 31% | 36.5% |
| Cuba, IL | 1,066 | 27% | 43.1% |
| Astoria, IL | 1,154 | 22% | 54.5% |
| Table Grove, IL | 363 | 14% | 70.1% |
| Lewistown, IL | 2,021 | 21% | 56.8% |
| City | Population | Avg. Test Scores | National Avg. |
| Creston, OH | 2,020 | 80% | 67.4% |
| Mountain Lake, MN | 2,022 | 58% | 21.4% |
| Indian River, MI | 2,019 | 41% | 15.6% |
| Woodworth, LA | 2,019 | 97% | 101.0% |
| Duchesne, UT | 2,019 | 41% | 15.6% |
| Lewistown, IL | 2,021 | 21% | 56.8% |
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