| Index | Chillicothe | Illinois | National |
| Average Test Scores | 46% | 33% | 48% |
| Student/Teacher ratio | 16:1 | 18:1 | 16:1 |
| Total public schools | 3 | 3,938 | 79,221 |
| Total private schools | 4 | 1,438 | 24,874 |
| Total post-secondary schools | n/a | 306 | 7,963 |


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| Index | Chillicothe | Illinois | National |
| Completed 8th grade | 84.3% | 86.2% | 84.3% |
| Completed high school | 83.9% | 84.7% | 83.0% |
| Completed some college | 55.5% | 61.8% | 59.4% |
| Completed associate degree | 29.5% | 40.7% | 38.5% |
| Completed bachelors | 16.1% | 32.9% | 30.3% |
| Completed masters | 6.3% | 12.7% | 11.5% |
| Completed professional degree | 0.3% | 3.4% | 3.3% |
| Completed doctorate | 0.3% | 1.2% | 1.3% |
There are a total of 3 public schools, 4 private schools and n/a post-secondary schools in Chillicothe. Using the proficiency score averages, the average test scores for Chillicothe, IL schools is 46%. The average student to teacher ratio is 16:1. In Chillicothe, IL, an average of 84.3% of students have completed 8th grade and an average of 83.9% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Germantown Hills, IL | 3,421 | 65% | 35.4% |
| Dunlap, IL | 1,100 | 63% | 32.1% |
| Metamora, IL | 3,840 | 54% | 11.5% |
| Eureka, IL | 5,485 | 50% | 4.2% |
| Princeville, IL | 1,684 | 47% | 3.1% |
| Chillicothe, IL | 6,326 | 46% | 4.0% |
| City | Population | Avg. Test Scores | National Avg. |
| Carolina Beach, NC | 6,324 | 61% | 27.1% |
| Henderson, TN | 6,323 | 43% | 9.6% |
| Castroville, CA | 6,332 | 29% | 40.6% |
| Pepper Pike, OH | 6,319 | 88% | 83.0% |
| Red Lion, PA | 6,334 | 54% | 13.2% |
| Chillicothe, IL | 6,326 | 46% | 4.0% |