| Index | Clayton | New Jersey | National |
| Average Test Scores | 30% | 52% | 48% |
| Student/Teacher ratio | 14:1 | 13:1 | 16:1 |
| Total public schools | 3 | 1,604 | 79,221 |
| Total private schools | 1 | 823 | 24,874 |
| Total post-secondary schools | n/a | 157 | 7,963 |
| Index | Clayton | New Jersey | National |
| Completed 8th grade | 84.8% | 87.5% | 84.3% |
| Completed high school | 84.3% | 86.3% | 83.0% |
| Completed some college | 44.9% | 60.7% | 59.4% |
| Completed associate degree | 30.9% | 43.9% | 38.5% |
| Completed bachelors | 23.8% | 37.5% | 30.3% |
| Completed masters | 6.9% | 14.4% | 11.5% |
| Completed professional degree | 2.3% | 4.0% | 3.3% |
| Completed doctorate | 0.4% | 1.5% | 1.3% |
There are a total of 3 public schools, 1 private schools and n/a post-secondary schools in Clayton. Using the proficiency score averages, the average test scores for Clayton, NJ schools is 30%. The average student to teacher ratio is 14:1. In Clayton, NJ, an average of 84.8% of students have completed 8th grade and an average of 84.3% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Barclay, NJ | 4,044 | 80% | 65.6% |
| Voorhees, NJ | 1,686 | 67% | 40.5% |
| Springdale, NJ | 14,111 | 67% | 38.5% |
| Mullica Hill, NJ | 3,605 | 66% | 37.0% |
| Haddon Heights, NJ | 7,520 | 66% | 36.5% |
| Clayton, NJ | 8,688 | 30% | 37.2% |
| City | Population | Avg. Test Scores | National Avg. |
| Sandpoint, ID | 8,692 | 50% | 4.2% |
| Midway City, CA | 8,681 | 58% | 21.5% |
| Franklin, NH | 8,695 | 27% | 44.0% |
| Matawan, NJ | 8,696 | 62% | 28.5% |
| Cresskill, NJ | 8,701 | 76% | 57.6% |
| Clayton, NJ | 8,688 | 30% | 37.2% |
Here are the best places to live in New Jersey
See the best places to live in Clayton
These are the 10 cheapest cities in New Jersey
Most Dangerous Cities In The US