| Index | Walnut Hill | 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 | Walnut Hill | Illinois | National |
| Completed 8th grade | 77.5% | 86.2% | 84.3% |
| Completed high school | 71.3% | 84.7% | 83.0% |
| Completed some college | 65.0% | 61.8% | 59.4% |
| Completed associate degree | 53.8% | 40.7% | 38.5% |
| Completed bachelors | 32.5% | 32.9% | 30.3% |
| Completed masters | 13.8% | 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 Walnut Hill. Using the proficiency score averages, the average test scores for Walnut Hill, IL schools is n/a. The average student to teacher ratio is n/a. In Walnut Hill, IL, an average of 77.5% of students have completed 8th grade and an average of 71.3% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Iuka, IL | 486 | 65% | 34.4% |
| Salem, IL | 6,988 | 42% | 12.8% |
| Woodlawn, IL | 555 | 36% | 26.0% |
| Irvington, IL | 588 | 35% | 27.1% |
| Odin, IL | 999 | 34% | 30.2% |
| Walnut Hill, IL | 112 | n/a |
| City | Population | Avg. Test Scores | National Avg. |
| Scottsburg, VA | 112 | 83% | 72.4% |
| Whitewater, MT | 112 | 50% | 4.2% |
| Brussels, IL | 113 | 35% | 27.1% |
| Corona, NM | 113 | 58% | 19.8% |
| Goodridge, MN | 111 | 47% | 1.6% |
| Walnut Hill, IL | 112 | n/a |
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