| Index | Leonia | New Jersey | National |
| Average Test Scores | 66% | 52% | 48% |
| Student/Teacher ratio | 10:1 | 13:1 | 16:1 |
| Total public schools | 3 | 1,604 | 79,221 |
| Total private schools | 2 | 823 | 24,874 |
| Total post-secondary schools | n/a | 157 | 7,963 |
| Index | Leonia | New Jersey | National |
| Completed 8th grade | 92.8% | 87.5% | 84.3% |
| Completed high school | 92.7% | 86.3% | 83.0% |
| Completed some college | 77.5% | 60.7% | 59.4% |
| Completed associate degree | 67.5% | 43.9% | 38.5% |
| Completed bachelors | 61.2% | 37.5% | 30.3% |
| Completed masters | 24.2% | 14.4% | 11.5% |
| Completed professional degree | 5.5% | 4.0% | 3.3% |
| Completed doctorate | 1.9% | 1.5% | 1.3% |
There are a total of 3 public schools, 2 private schools and n/a post-secondary schools in Leonia. Using the proficiency score averages, the average test scores for Leonia, NJ schools is 66%. The average student to teacher ratio is 10:1. In Leonia, NJ, an average of 92.8% of students have completed 8th grade and an average of 92.7% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Orangeburg, NY | 4,454 | 98% | 103.1% |
| Teterboro, NJ | 110 | 95% | 96.9% |
| Bronxville, NY | 6,450 | 88% | 82.3% |
| Scarsdale, NY | 17,890 | 87% | 81.8% |
| Alpine, NJ | 1,459 | 87% | 81.3% |
| Leonia, NJ | 9,059 | 66% | 37.2% |
| City | Population | Avg. Test Scores | National Avg. |
| Wagoner, OK | 9,061 | 31% | 35.9% |
| Heath, TX | 9,069 | 69% | 43.8% |
| Charlotte, MI | 9,069 | 44% | 8.5% |
| Grinnell, IA | 9,069 | 79% | 64.6% |
| Lake Elmo, MN | 9,071 | 47% | 1.7% |
| Leonia, NJ | 9,059 | 66% | 37.2% |
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