| Index | Harrington Park | New Jersey | National |
| Average Test Scores | 79% | 52% | 48% |
| Student/Teacher ratio | 15:1 | 13:1 | 16:1 |
| Total public schools | 1 | 1,604 | 79,221 |
| Total private schools | n/a | 823 | 24,874 |
| Total post-secondary schools | n/a | 157 | 7,963 |
| Index | Harrington Park | New Jersey | National |
| Completed 8th grade | 95.5% | 87.5% | 84.3% |
| Completed high school | 94.8% | 86.3% | 83.0% |
| Completed some college | 81.3% | 60.7% | 59.4% |
| Completed associate degree | 67.0% | 43.9% | 38.5% |
| Completed bachelors | 61.1% | 37.5% | 30.3% |
| Completed masters | 26.7% | 14.4% | 11.5% |
| Completed professional degree | 6.0% | 4.0% | 3.3% |
| Completed doctorate | 2.0% | 1.5% | 1.3% |
There are a total of 1 public schools, n/a private schools and n/a post-secondary schools in Harrington Park. Using the proficiency score averages, the average test scores for Harrington Park, NJ schools is 79%. The average student to teacher ratio is 15:1. In Harrington Park, NJ, an average of 95.5% of students have completed 8th grade and an average of 94.8% 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% |
| Harrington Park, NJ | 4,735 | 79% | 63.5% |
| City | Population | Avg. Test Scores | National Avg. |
| Franklin, NJ | 4,737 | 51% | 6.3% |
| Bigfork, MT | 4,733 | 53% | 10.6% |
| Crystal City, MO | 4,733 | 47% | 3.1% |
| Dundee, FL | 4,738 | 48% | 0.7% |
| Morganville, NJ | 4,738 | 75% | 56.6% |
| Harrington Park, NJ | 4,735 | 79% | 63.5% |
Here are the best places to live in New Jersey
Check out the 10 most dangerous cities in New Jersey
Safest Cities In The US
See the best places to live in Harrington Park