| Index | Sussex | New Jersey | National |
| Average Test Scores | 48% | 52% | 48% |
| Student/Teacher ratio | 12:1 | 13:1 | 16:1 |
| Total public schools | 2 | 1,604 | 79,221 |
| Total private schools | 1 | 823 | 24,874 |
| Total post-secondary schools | 1 | 157 | 7,963 |
| Index | Sussex | New Jersey | National |
| Completed 8th grade | 80.6% | 87.5% | 84.3% |
| Completed high school | 78.2% | 86.3% | 83.0% |
| Completed some college | 45.5% | 60.7% | 59.4% |
| Completed associate degree | 20.3% | 43.9% | 38.5% |
| Completed bachelors | 13.5% | 37.5% | 30.3% |
| Completed masters | 3.7% | 14.4% | 11.5% |
| Completed professional degree | 0.0% | 4.0% | 3.3% |
| Completed doctorate | 0.0% | 1.5% | 1.3% |
There are a total of 2 public schools, 1 private schools and 1 post-secondary schools in Sussex. Using the proficiency score averages, the average test scores for Sussex, NJ schools is 48%. The average student to teacher ratio is 12:1. In Sussex, NJ, an average of 80.6% of students have completed 8th grade and an average of 78.2% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Warwick, NY | 6,769 | 71% | 47.9% |
| Lake Mohawk, NJ | 9,148 | 70% | 45.8% |
| Milford, PA | 1,390 | 68% | 41.1% |
| Matamoras, PA | 2,274 | 67% | 38.5% |
| Florida, NY | 2,873 | 66% | 37.0% |
| Sussex, NJ | 1,836 | 48% | 1.0% |
| City | Population | Avg. Test Scores | National Avg. |
| Fort Plain, NY | 1,837 | 39% | 18.2% |
| Moriarty, NM | 1,835 | 30% | 36.8% |
| Wright, WY | 1,835 | 47% | 2.1% |
| Howey-in-the-Hills, FL | 1,837 | 37% | 22.9% |
| Martinsburg, PA | 1,834 | 63% | 30.2% |
| Sussex, NJ | 1,836 | 48% | 1.0% |
Here are the best places to live in New Jersey
These are the 10 cheapest cities in New Jersey
These are the largest cities in New Jersey
Most Dangerous Cities In The US