| Index | Greenwich | New Jersey | National |
| Average Test Scores | 60% | 52% | 48% |
| Student/Teacher ratio | n/a | 13:1 | 16:1 |
| Total public schools | n/a | 1,604 | 79,221 |
| Total private schools | n/a | 823 | 24,874 |
| Total post-secondary schools | n/a | 157 | 7,963 |
| Index | Greenwich | New Jersey | National |
| Completed 8th grade | 96.5% | 87.5% | 84.3% |
| Completed high school | 96.5% | 86.3% | 83.0% |
| Completed some college | 88.5% | 60.7% | 59.4% |
| Completed associate degree | 74.7% | 43.9% | 38.5% |
| Completed bachelors | 62.2% | 37.5% | 30.3% |
| Completed masters | 26.7% | 14.4% | 11.5% |
| Completed professional degree | 7.0% | 4.0% | 3.3% |
| Completed doctorate | 3.0% | 1.5% | 1.3% |
There are a total of n/a public schools, n/a private schools and n/a post-secondary schools in Greenwich. Using the proficiency score averages, the average test scores for Greenwich, NJ schools is 60%. The average student to teacher ratio is n/a. In Greenwich, NJ, an average of 96.5% of students have completed 8th grade and an average of 96.5% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Penn Wynne, PA | 5,769 | 87% | 81.3% |
| Bryn Mawr, PA | 5,611 | 86% | 78.1% |
| Ardmore, PA | 13,567 | 85% | 77.1% |
| Narberth, PA | 4,304 | 81% | 68.8% |
| Malvern, PA | 3,445 | 79% | 64.2% |
| Greenwich, NJ | 2,747 | 60% | 25.0% |
| City | Population | Avg. Test Scores | National Avg. |
| Thermopolis, WY | 2,747 | 60% | 24.3% |
| Refugio, TX | 2,748 | 41% | 15.3% |
| Windsor, VA | 2,748 | 87% | 80.9% |
| Marshville, NC | 2,748 | 41% | 15.1% |
| Marietta, OK | 2,746 | 22% | 53.4% |
| Greenwich, NJ | 2,747 | 60% | 25.0% |
Here are the best places to live in New Jersey
Check out the 10 safest cities in New Jersey
These are the largest cities in New Jersey
Check out the 10 most dangerous cities in New Jersey