| Index | Seaford | Delaware | National |
| Average Test Scores | 45% | 44% | 48% |
| Student/Teacher ratio | 16:1 | 16:1 | 16:1 |
| Total public schools | 7 | 191 | 79,221 |
| Total private schools | 3 | 129 | 24,874 |
| Total post-secondary schools | n/a | 20 | 7,963 |

| Index | Seaford | Delaware | National |
| Completed 8th grade | 77.7% | 86.3% | 84.3% |
| Completed high school | 76.8% | 85.3% | 83.0% |
| Completed some college | 42.9% | 57.7% | 59.4% |
| Completed associate degree | 21.8% | 38.2% | 38.5% |
| Completed bachelors | 14.9% | 30.5% | 30.3% |
| Completed masters | 5.9% | 12.4% | 11.5% |
| Completed professional degree | 1.5% | 3.5% | 3.3% |
| Completed doctorate | 0.1% | 1.7% | 1.3% |
There are a total of 7 public schools, 3 private schools and n/a post-secondary schools in Seaford. Using the proficiency score averages, the average test scores for Seaford, DE schools is 45%. The average student to teacher ratio is 16:1. In Seaford, DE, an average of 77.7% of students have completed 8th grade and an average of 76.8% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Mardela Springs, MD | 500 | 55% | 15.1% |
| Delmar, MD | 3,402 | 48% | 1.0% |
| Georgetown, DE | 7,641 | 47% | 2.1% |
| Delmar, DE | 2,205 | 45% | 6.8% |
| Bridgeville, DE | 3,626 | 37% | 22.4% |
| Seaford, DE | 8,163 | 45% | 6.3% |
| City | Population | Avg. Test Scores | National Avg. |
| Makawao, HI | 8,162 | 45% | 6.3% |
| Abingdon, VA | 8,159 | 91% | 89.4% |
| Travelers Rest, SC | 8,172 | 55% | 14.1% |
| Ione, CA | 8,152 | 40% | 17.7% |
| Catoosa, OK | 8,150 | 25% | 47.2% |
| Seaford, DE | 8,163 | 45% | 6.3% |