| Index | Watchung | New Jersey | National |
| Average Test Scores | 75% | 52% | 48% |
| Student/Teacher ratio | 15:1 | 13:1 | 16:1 |
| Total public schools | 2 | 1,604 | 79,221 |
| Total private schools | 2 | 823 | 24,874 |
| Total post-secondary schools | n/a | 157 | 7,963 |
| Index | Watchung | New Jersey | National |
| Completed 8th grade | 95.8% | 87.5% | 84.3% |
| Completed high school | 95.8% | 86.3% | 83.0% |
| Completed some college | 77.3% | 60.7% | 59.4% |
| Completed associate degree | 66.3% | 43.9% | 38.5% |
| Completed bachelors | 60.1% | 37.5% | 30.3% |
| Completed masters | 32.2% | 14.4% | 11.5% |
| Completed professional degree | 11.5% | 4.0% | 3.3% |
| Completed doctorate | 3.9% | 1.5% | 1.3% |
There are a total of 2 public schools, 2 private schools and n/a post-secondary schools in Watchung. Using the proficiency score averages, the average test scores for Watchung, NJ schools is 75%. The average student to teacher ratio is 15:1. In Watchung, NJ, an average of 95.8% of students have completed 8th grade and an average of 95.8% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Essex Fells, NJ | 2,037 | 85% | 76.0% |
| Short Hills, NJ | 13,700 | 83% | 73.8% |
| Summit, NJ | 21,913 | 81% | 69.3% |
| Bradley Gardens, NJ | 14,714 | 81% | 68.2% |
| New Providence, NJ | 13,382 | 80% | 66.4% |
| Watchung, NJ | 6,040 | 75% | 55.7% |
| City | Population | Avg. Test Scores | National Avg. |
| Theodore, AL | 6,039 | 35% | 27.3% |
| Laurence Harbor, NJ | 6,041 | 70% | 44.8% |
| Bensley, VA | 6,044 | 74% | 53.1% |
| Mascotte, FL | 6,031 | 52% | 7.3% |
| St. Helena, CA | 6,049 | 60% | 24.0% |
| Watchung, NJ | 6,040 | 75% | 55.7% |
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