| Index | Lerna | Illinois | National |
| Average Test Scores | n/a | 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 | Lerna | Illinois | National |
| Completed 8th grade | 90.4% | 86.2% | 84.3% |
| Completed high school | 89.8% | 84.7% | 83.0% |
| Completed some college | 44.6% | 61.8% | 59.4% |
| Completed associate degree | 22.3% | 40.7% | 38.5% |
| Completed bachelors | 9.0% | 32.9% | 30.3% |
| Completed masters | 1.2% | 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 Lerna. Using the proficiency score averages, the average test scores for Lerna, IL schools is n/a. The average student to teacher ratio is n/a. In Lerna, IL, an average of 90.4% of students have completed 8th grade and an average of 89.8% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Mattoon, IL | 17,273 | 30% | 37.2% |
| Toledo, IL | 1,163 | 28% | 42.4% |
| Charleston, IL | 20,141 | 27% | 44.8% |
| Neoga, IL | 1,579 | 26% | 46.4% |
| Ashmore, IL | 1,021 | 20% | 58.3% |
| Lerna, IL | 251 | n/a |
| City | Population | Avg. Test Scores | National Avg. |
| College Springs, IA | 251 | 58% | 19.8% |
| Anaktuvuk Pass, AK | 251 | 10% | 79.2% |
| Fulton, IN | 251 | 41% | 14.1% |
| Potrero, CA | 250 | 17% | 64.6% |
| Jamestown, CO | 250 | 50% | 4.2% |
| Lerna, IL | 251 | n/a |
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