| Index | Harper | Texas | National |
| Average Test Scores | 55% | 47% | 48% |
| Student/Teacher ratio | 13:1 | 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 | Harper | Texas | National |
| Completed 8th grade | 80.8% | 79.3% | 84.3% |
| Completed high school | 80.8% | 77.8% | 83.0% |
| Completed some college | 55.0% | 57.3% | 59.4% |
| Completed associate degree | 32.9% | 34.9% | 38.5% |
| Completed bachelors | 21.4% | 28.1% | 30.3% |
| Completed masters | 3.8% | 9.6% | 11.5% |
| Completed professional degree | 1.2% | 2.6% | 3.3% |
| Completed doctorate | 1.2% | 1.1% | 1.3% |
There are a total of 3 public schools, n/a private schools and n/a post-secondary schools in Harper. Using the proficiency score averages, the average test scores for Harper, TX schools is 55%. The average student to teacher ratio is 13:1. In Harper, TX, an average of 80.8% of students have completed 8th grade and an average of 80.8% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Harper, TX | 1,391 | 55% | 13.9% |
| City | Population | Avg. Test Scores | National Avg. |
| Owensville, IN | 1,391 | 49% | 1.0% |
| Miamitown, OH | 1,391 | 82% | 70.8% |
| Woodbine, IA | 1,391 | 78% | 63.0% |
| Humansville, MO | 1,391 | 39% | 19.1% |
| Jarrell, TX | 1,392 | 36% | 25.7% |
| Harper, TX | 1,391 | 55% | 13.9% |
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