| Index | Harahan | Louisiana | National |
| Average Test Scores | 80% | 66% | 48% |
| Student/Teacher ratio | 16:1 | 14:1 | 16:1 |
| Total public schools | 1 | 1,334 | 79,221 |
| Total private schools | 2 | 395 | 24,874 |
| Total post-secondary schools | n/a | 175 | 7,963 |
| Index | Harahan | Louisiana | National |
| Completed 8th grade | 85.7% | 80.2% | 84.3% |
| Completed high school | 85.2% | 78.5% | 83.0% |
| Completed some college | 59.3% | 49.9% | 59.4% |
| Completed associate degree | 35.4% | 28.6% | 38.5% |
| Completed bachelors | 29.2% | 23.0% | 30.3% |
| Completed masters | 10.2% | 7.9% | 11.5% |
| Completed professional degree | 4.1% | 2.6% | 3.3% |
| Completed doctorate | 1.4% | 1.0% | 1.3% |
There are a total of 1 public schools, 2 private schools and n/a post-secondary schools in Harahan. Using the proficiency score averages, the average test scores for Harahan, LA schools is 80%. The average student to teacher ratio is 16:1. In Harahan, LA, an average of 85.7% of students have completed 8th grade and an average of 85.2% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Norco, LA | 2,993 | 89% | 84.4% |
| Belle Chasse, LA | 10,241 | 86% | 78.1% |
| Paradis, LA | 1,508 | 84% | 74.0% |
| Destrehan, LA | 11,658 | 84% | 74.0% |
| Boutte, LA | 2,944 | 82% | 70.8% |
| Harahan, LA | 9,293 | 80% | 66.7% |
| City | Population | Avg. Test Scores | National Avg. |
| Girard, OH | 9,293 | 78% | 62.5% |
| Murrells Inlet, SC | 9,292 | 82% | 69.8% |
| Saline, MI | 9,296 | 69% | 42.9% |
| Bay Minette, AL | 9,297 | 37% | 22.3% |
| Steger, IL | 9,289 | 19% | 60.9% |
| Harahan, LA | 9,293 | 80% | 66.7% |
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