| Index | Walnut | Kansas | National |
| Average Test Scores | n/a | 35% | 48% |
| Student/Teacher ratio | n/a | 14:1 | 16:1 |
| Total public schools | n/a | 970 | 79,221 |
| Total private schools | n/a | 190 | 24,874 |
| Total post-secondary schools | n/a | 86 | 7,963 |
| Index | Walnut | Kansas | National |
| Completed 8th grade | 87.6% | 87.4% | 84.3% |
| Completed high school | 78.8% | 86.1% | 83.0% |
| Completed some college | 47.4% | 63.7% | 59.4% |
| Completed associate degree | 10.2% | 39.8% | 38.5% |
| Completed bachelors | 5.1% | 31.6% | 30.3% |
| Completed masters | 0.7% | 11.4% | 11.5% |
| Completed professional degree | 0.7% | 3.0% | 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. Using the proficiency score averages, the average test scores for Walnut, KS schools is n/a. The average student to teacher ratio is n/a. In Walnut, KS, an average of 87.6% of students have completed 8th grade and an average of 78.8% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Girard, KS | 2,682 | 33% | 31.3% |
| St. Paul, KS | 543 | 32% | 34.4% |
| Erie, KS | 1,503 | 31% | 35.4% |
| Walnut, KS | 221 | n/a |
| City | Population | Avg. Test Scores | National Avg. |
| South Salem, OH | 221 | 70% | 44.8% |
| Okreek, SD | 221 | 20% | 58.3% |
| Jeddito, AZ | 221 | 10% | 79.2% |
| Goshen, AL | 222 | 37% | 22.9% |
| Elbert, CO | 220 | 24% | 50.5% |
| Walnut, KS | 221 | n/a |
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