| Index | Millville | 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 | Millville | Delaware | National |
| Completed 8th grade | 87.9% | 86.3% | 84.3% |
| Completed high school | 87.4% | 85.3% | 83.0% |
| Completed some college | 61.2% | 57.7% | 59.4% |
| Completed associate degree | 39.2% | 38.2% | 38.5% |
| Completed bachelors | 29.9% | 30.5% | 30.3% |
| Completed masters | 9.9% | 12.4% | 11.5% |
| Completed professional degree | 1.9% | 3.5% | 3.3% |
| Completed doctorate | 0.6% | 1.7% | 1.3% |
There are a total of n/a public schools, n/a private schools and n/a post-secondary schools in Millville. Using the proficiency score averages, the average test scores for Millville, DE schools is n/a. The average student to teacher ratio is n/a. In Millville, DE, an average of 87.9% of students have completed 8th grade and an average of 87.4% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Ocean View, DE | 2,637 | 78% | 62.5% |
| Ocean City, MD | 6,957 | 77% | 60.4% |
| Rehoboth Beach, DE | 1,588 | 74% | 53.1% |
| Berlin, MD | 4,740 | 65% | 34.8% |
| Selbyville, DE | 2,520 | 65% | 34.7% |
| Millville, DE | 1,484 | n/a |
| City | Population | Avg. Test Scores | National Avg. |
| Skidmore, TX | 1,484 | 50% | 4.9% |
| Lone Pine, CA | 1,484 | 49% | 1.0% |
| Aberdeen, OH | 1,484 | 56% | 16.7% |
| Salina, OK | 1,484 | 27% | 44.4% |
| Castleton-on-Hudson, NY | 1,483 | 54% | 12.5% |
| Millville, DE | 1,484 | n/a |
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