| Index | Henderson | 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 | Henderson | Illinois | National |
| Completed 8th grade | 85.0% | 86.2% | 84.3% |
| Completed high school | 84.4% | 84.7% | 83.0% |
| Completed some college | 53.9% | 61.8% | 59.4% |
| Completed associate degree | 26.7% | 40.7% | 38.5% |
| Completed bachelors | 12.2% | 32.9% | 30.3% |
| Completed masters | 3.3% | 12.7% | 11.5% |
| Completed professional degree | 1.1% | 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 Henderson. Using the proficiency score averages, the average test scores for Henderson, IL schools is n/a. The average student to teacher ratio is n/a. In Henderson, IL, an average of 85.0% of students have completed 8th grade and an average of 84.4% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Woodhull, IL | 752 | 42% | 12.5% |
| Oneida, IL | 778 | 36% | 25.5% |
| Viola, IL | 1,040 | 32% | 33.3% |
| Alexis, IL | 862 | 27% | 43.8% |
| Alpha, IL | 674 | 27% | 43.8% |
| Henderson, IL | 280 | n/a |
| City | Population | Avg. Test Scores | National Avg. |
| Buffalo, SD | 280 | 57% | 18.1% |
| Clarksburg, MO | 280 | 45% | 6.3% |
| Arlington, IN | 280 | 60% | 24.0% |
| Wallace, NE | 279 | 60% | 25.0% |
| Quitman, LA | 281 | 67% | 38.5% |
| Henderson, IL | 280 | n/a |
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