| Index | Exeter | 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 | Exeter | Illinois | National |
| Completed 8th grade | 82.6% | 86.2% | 84.3% |
| Completed high school | 82.6% | 84.7% | 83.0% |
| Completed some college | 39.1% | 61.8% | 59.4% |
| Completed associate degree | 15.9% | 40.7% | 38.5% |
| Completed bachelors | 5.8% | 32.9% | 30.3% |
| Completed masters | 2.9% | 12.7% | 11.5% |
| Completed professional degree | 1.4% | 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 Exeter. Using the proficiency score averages, the average test scores for Exeter, IL schools is n/a. The average student to teacher ratio is n/a. In Exeter, IL, an average of 82.6% of students have completed 8th grade and an average of 82.6% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Concord, IL | 167 | 41% | 15.3% |
| Murrayville, IL | 544 | 32% | 33.5% |
| Winchester, IL | 1,636 | 31% | 35.1% |
| Jacksonville, IL | 19,042 | 26% | 45.4% |
| Griggsville, IL | 1,325 | 25% | 48.0% |
| Exeter, IL | 105 | n/a |
| City | Population | Avg. Test Scores | National Avg. |
| Rosebud, MT | 105 | 50% | 3.9% |
| La Plant, SD | 105 | 5% | 89.6% |
| Geyser, MT | 105 | 50% | 3.9% |
| Church Creek, MD | 106 | 65% | 34.0% |
| Eagle, MI | 104 | 52% | 7.0% |
| Exeter, IL | 105 | n/a |
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