| Index | Harrisburg | Missouri | National |
| Average Test Scores | 39% | 44% | 48% |
| Student/Teacher ratio | n/a | 14:1 | 16:1 |
| Total public schools | n/a | 1,899 | 79,221 |
| Total private schools | n/a | 531 | 24,874 |
| Total post-secondary schools | n/a | 213 | 7,963 |
| Index | Harrisburg | Missouri | National |
| Completed 8th grade | 91.2% | 86.0% | 84.3% |
| Completed high school | 90.2% | 84.2% | 83.0% |
| Completed some college | 60.3% | 57.7% | 59.4% |
| Completed associate degree | 31.9% | 35.2% | 38.5% |
| Completed bachelors | 17.6% | 27.6% | 30.3% |
| Completed masters | 4.9% | 10.4% | 11.5% |
| Completed professional degree | 0.0% | 2.8% | 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 Harrisburg. Using the proficiency score averages, the average test scores for Harrisburg, MO schools is 39%. The average student to teacher ratio is n/a. In Harrisburg, MO, an average of 91.2% of students have completed 8th grade and an average of 90.2% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Hallsville, MO | 1,686 | 53% | 9.4% |
| Fayette, MO | 2,677 | 52% | 8.7% |
| Columbia, MO | 122,659 | 43% | 9.6% |
| Sturgeon, MO | 1,102 | 43% | 10.4% |
| Higbee, MO | 597 | 40% | 17.2% |
| Harrisburg, MO | 340 | 39% | 19.1% |
| City | Population | Avg. Test Scores | National Avg. |
| Little Mountain, SC | 340 | 61% | 27.1% |
| Scranton, ND | 340 | 65% | 35.4% |
| Winthrop, WA | 340 | 57% | 19.3% |
| St. Marks, FL | 340 | 32% | 33.3% |
| St. Thomas, ND | 340 | 50% | 4.2% |
| Harrisburg, MO | 340 | 39% | 19.1% |
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