| Index | Delmar | Maryland | National |
| Average Test Scores | 48% | 40% | 48% |
| Student/Teacher ratio | 17:1 | 16:1 | 16:1 |
| Total public schools | 1 | 1,163 | 79,221 |
| Total private schools | n/a | 674 | 24,874 |
| Total post-secondary schools | n/a | 112 | 7,963 |
| Index | Delmar | Maryland | National |
| Completed 8th grade | 85.4% | 87.5% | 84.3% |
| Completed high school | 84.7% | 86.5% | 83.0% |
| Completed some college | 55.9% | 64.2% | 59.4% |
| Completed associate degree | 34.3% | 44.8% | 38.5% |
| Completed bachelors | 26.3% | 38.4% | 30.3% |
| Completed masters | 12.7% | 17.7% | 11.5% |
| Completed professional degree | 5.9% | 5.5% | 3.3% |
| Completed doctorate | 2.3% | 2.5% | 1.3% |
There are a total of 1 public schools, n/a private schools and n/a post-secondary schools in Delmar. Using the proficiency score averages, the average test scores for Delmar, MD schools is 48%. The average student to teacher ratio is 17:1. In Delmar, MD, an average of 85.4% of students have completed 8th grade and an average of 84.7% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Millsboro, DE | 4,448 | 60% | 25.3% |
| Mardela Springs, MD | 487 | 55% | 15.1% |
| Hebron, MD | 1,019 | 47% | 2.1% |
| Willards, MD | 1,034 | 47% | 2.1% |
| Pittsville, MD | 1,742 | 46% | 5.2% |
| Delmar, MD | 3,321 | 48% | 1.0% |
| City | Population | Avg. Test Scores | National Avg. |
| Auberry, CA | 3,321 | 50% | 4.2% |
| Robbinsville, NJ | 3,321 | 72% | 49.3% |
| Bella Vista, CA | 3,320 | 48% | = 100 |
| Osceola, IN | 3,323 | 64% | 33.3% |
| Keego Harbor, MI | 3,323 | 55% | 13.5% |
| Delmar, MD | 3,321 | 48% | 1.0% |
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