| 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 | 170 | 41% | 15.1% |
| Murrayville, IL | 582 | 32% | 33.3% |
| Winchester, IL | 1,717 | 31% | 34.9% |
| Griggsville, IL | 1,454 | 25% | 47.9% |
| South Jacksonville, IL | 3,132 | 25% | 49.0% |
| Exeter, IL | 72 | n/a |
| City | Population | Avg. Test Scores | National Avg. |
| Wasta, SD | 73 | 50% | 4.2% |
| Bartlett, KS | 71 | 42% | 12.5% |
| Quemado, TX | 71 | 75% | 56.3% |
| Tuskahoma, OK | 73 | 13% | 74.0% |
| Lamont, WA | 71 | 35% | 27.1% |
| Exeter, IL | 72 | n/a |
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