| Index | Harrisburg | Arkansas | National |
| Average Test Scores | 41% | 45% | 48% |
| Student/Teacher ratio | 15:1 | 14:1 | 16:1 |
| Total public schools | 4 | 860 | 79,221 |
| Total private schools | n/a | 165 | 24,874 |
| Total post-secondary schools | n/a | 98 | 7,963 |


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| Index | Harrisburg | Arkansas | National |
| Completed 8th grade | 78.4% | 80.7% | 84.3% |
| Completed high school | 75.3% | 79.0% | 83.0% |
| Completed some college | 34.4% | 50.5% | 59.4% |
| Completed associate degree | 11.4% | 27.9% | 38.5% |
| Completed bachelors | 7.9% | 21.5% | 30.3% |
| Completed masters | 2.5% | 7.6% | 11.5% |
| Completed professional degree | 0.6% | 2.2% | 3.3% |
| Completed doctorate | 0.2% | 0.9% | 1.3% |
There are a total of 4 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, AR schools is 41%. The average student to teacher ratio is 15:1. In Harrisburg, AR, an average of 78.4% of students have completed 8th grade and an average of 75.3% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Weiner, AR | 856 | 60% | 25.0% |
| Cherry Valley, AR | 725 | 53% | 10.9% |
| Bay, AR | 2,423 | 42% | 12.5% |
| Trumann, AR | 7,269 | 36% | 25.0% |
| Harrisburg, AR | 2,931 | 41% | 15.4% |
| City | Population | Avg. Test Scores | National Avg. |
| Somerset, WI | 2,931 | 44% | 8.7% |
| Decherd, TN | 2,932 | 17% | 64.6% |
| Clayton, AL | 2,930 | 9% | 82.3% |
| Goffstown, NH | 2,930 | 62% | 29.2% |
| David City, NE | 2,933 | 63% | 31.8% |
| Harrisburg, AR | 2,931 | 41% | 15.4% |