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

| Index | Ellendale | Delaware | National |
| Completed 8th grade | 70.8% | 86.3% | 84.3% |
| Completed high school | 69.0% | 85.3% | 83.0% |
| Completed some college | 29.5% | 57.7% | 59.4% |
| Completed associate degree | 17.7% | 38.2% | 38.5% |
| Completed bachelors | 5.5% | 30.5% | 30.3% |
| Completed masters | 1.5% | 12.4% | 11.5% |
| Completed professional degree | 0.0% | 3.5% | 3.3% |
| Completed doctorate | 0.0% | 1.7% | 1.3% |
There are a total of n/a public schools, n/a private schools and n/a post-secondary schools in Ellendale. Using the proficiency score averages, the average test scores for Ellendale, DE schools is n/a. The average student to teacher ratio is n/a. In Ellendale, DE, an average of 70.8% of students have completed 8th grade and an average of 69.0% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Frederica, DE | 980 | 77% | 60.4% |
| Felton, DE | 1,237 | 56% | 17.0% |
| Milton, DE | 3,090 | 55% | 13.9% |
| Harrington, DE | 3,741 | 51% | 6.3% |
| Milford, DE | 11,721 | 47% | 1.3% |
| Ellendale, DE | 774 | n/a |
| City | Population | Avg. Test Scores | National Avg. |
| Pinnacle, NC | 774 | 62% | 29.2% |
| Wampsville, NY | 774 | 32% | 34.4% |
| Meeteetse, WY | 774 | 60% | 25.0% |
| Karlstad, MN | 774 | 62% | 29.7% |
| Niland, CA | 773 | 50% | 4.2% |
| Ellendale, DE | 774 | n/a |