| Index | Cranbury | New Jersey | National |
| Average Test Scores | 81% | 52% | 48% |
| Student/Teacher ratio | 12:1 | 13:1 | 16:1 |
| Total public schools | 1 | 1,604 | 79,221 |
| Total private schools | 2 | 823 | 24,874 |
| Total post-secondary schools | 1 | 157 | 7,963 |
| Index | Cranbury | New Jersey | National |
| Completed 8th grade | 94.7% | 87.5% | 84.3% |
| Completed high school | 94.3% | 86.3% | 83.0% |
| Completed some college | 79.3% | 60.7% | 59.4% |
| Completed associate degree | 69.9% | 43.9% | 38.5% |
| Completed bachelors | 64.6% | 37.5% | 30.3% |
| Completed masters | 36.9% | 14.4% | 11.5% |
| Completed professional degree | 15.5% | 4.0% | 3.3% |
| Completed doctorate | 6.9% | 1.5% | 1.3% |
There are a total of 1 public schools, 2 private schools and 1 post-secondary schools in Cranbury. Using the proficiency score averages, the average test scores for Cranbury, NJ schools is 81%. The average student to teacher ratio is 12:1. In Cranbury, NJ, an average of 94.7% of students have completed 8th grade and an average of 94.3% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Roosevelt, NJ | 913 | 80% | 66.7% |
| Plainsboro Center, NJ | 2,715 | 77% | 60.4% |
| Skillman, NJ | 476 | 77% | 60.2% |
| Yorketown, NJ | 6,739 | 77% | 60.2% |
| Morganville, NJ | 4,738 | 75% | 56.6% |
| Cranbury, NJ | 2,213 | 81% | 68.8% |
| City | Population | Avg. Test Scores | National Avg. |
| Nokomis, IL | 2,213 | 43% | 9.9% |
| Great Barrington, MA | 2,213 | 53% | 11.1% |
| Oakboro, NC | 2,214 | 47% | 2.1% |
| Bagdad, AZ | 2,212 | 32% | 33.0% |
| Kensington, MD | 2,212 | 47% | 1.5% |
| Cranbury, NJ | 2,213 | 81% | 68.8% |
Here are the best places to live in New Jersey
These are the 10 cheapest cities in New Jersey
See the best places to live in Cranbury
Check out the 10 safest cities in New Jersey