| 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 |
| 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 | 823 | 60% | 25.0% |
| Cherry Valley, AR | 702 | 53% | 10.9% |
| Bay, AR | 2,341 | 42% | 12.5% |
| Trumann, AR | 7,000 | 36% | 25.0% |
| Harrisburg, AR | 2,874 | 41% | 15.4% |
| City | Population | Avg. Test Scores | National Avg. |
| Syracuse, IN | 2,874 | 43% | 10.1% |
| Brandenburg, KY | 2,874 | 60% | 25.0% |
| Seagraves, TX | 2,873 | 34% | 30.2% |
| Grifton, NC | 2,873 | 26% | 46.9% |
| Shelby, MT | 2,875 | 39% | 19.5% |
| Harrisburg, AR | 2,874 | 41% | 15.4% |
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