| Index | Knox City | Texas | National |
| Average Test Scores | 43% | 47% | 48% |
| Student/Teacher ratio | 9:1 | 14:1 | 16:1 |
| Total public schools | 3 | 7,418 | 79,221 |
| Total private schools | n/a | 1,267 | 24,874 |
| Total post-secondary schools | n/a | 463 | 7,963 |
| Index | Knox City | Texas | National |
| Completed 8th grade | 76.1% | 79.3% | 84.3% |
| Completed high school | 73.9% | 77.8% | 83.0% |
| Completed some college | 50.6% | 57.3% | 59.4% |
| Completed associate degree | 26.8% | 34.9% | 38.5% |
| Completed bachelors | 18.2% | 28.1% | 30.3% |
| Completed masters | 6.1% | 9.6% | 11.5% |
| Completed professional degree | 1.0% | 2.6% | 3.3% |
| Completed doctorate | 0.4% | 1.1% | 1.3% |
There are a total of 3 public schools, n/a private schools and n/a post-secondary schools in Knox City. Using the proficiency score averages, the average test scores for Knox City, TX schools is 43%. The average student to teacher ratio is 9:1. In Knox City, TX, an average of 76.1% of students have completed 8th grade and an average of 73.9% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Benjamin, TX | 238 | 55% | 13.5% |
| Munday, TX | 1,253 | 45% | 5.7% |
| O'Brien, TX | 121 | 42% | 12.5% |
| Knox City, TX | 1,100 | 43% | 11.5% |
| City | Population | Avg. Test Scores | National Avg. |
| Tabor, IA | 1,100 | 75% | 55.2% |
| Dunlap, IL | 1,100 | 63% | 32.1% |
| Knightsen, CA | 1,100 | 37% | 24.0% |
| Clear Lake, WA | 1,101 | 75% | 55.2% |
| Rush Springs, OK | 1,101 | 31% | 34.7% |
| Knox City, TX | 1,100 | 43% | 11.5% |
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