| Index | Deale | Maryland | National |
| Average Test Scores | 57% | 40% | 48% |
| Student/Teacher ratio | 17:1 | 16:1 | 16:1 |
| Total public schools | 1 | 1,163 | 79,221 |
| Total private schools | 1 | 674 | 24,874 |
| Total post-secondary schools | n/a | 112 | 7,963 |


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| Index | Deale | Maryland | National |
| Completed 8th grade | 91.2% | 87.5% | 84.3% |
| Completed high school | 90.3% | 86.5% | 83.0% |
| Completed some college | 65.8% | 64.2% | 59.4% |
| Completed associate degree | 40.8% | 44.8% | 38.5% |
| Completed bachelors | 34.4% | 38.4% | 30.3% |
| Completed masters | 11.9% | 17.7% | 11.5% |
| Completed professional degree | 1.9% | 5.5% | 3.3% |
| Completed doctorate | 0.2% | 2.5% | 1.3% |
There are a total of 1 public schools, 1 private schools and n/a post-secondary schools in Deale. Using the proficiency score averages, the average test scores for Deale, MD schools is 57%. The average student to teacher ratio is 17:1. In Deale, MD, an average of 91.2% of students have completed 8th grade and an average of 90.3% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Owings, MD | 2,536 | 69% | 43.8% |
| Tilghman Island, MD | 850 | 65% | 35.4% |
| Huntingtown, MD | 3,130 | 64% | 33.6% |
| Chesapeake Beach, MD | 6,159 | 63% | 31.3% |
| Stevensville, MD | 8,447 | 60% | 24.8% |
| Deale, MD | 4,757 | 57% | 18.8% |
| City | Population | Avg. Test Scores | National Avg. |
| Canastota, NY | 4,754 | 45% | 6.9% |
| Buffalo, WY | 4,760 | 59% | 22.6% |
| Bethel Manor, VA | 4,760 | 92% | 90.6% |
| Flemington, NJ | 4,754 | 68% | 42.2% |
| Tuscola, IL | 4,761 | 32% | 32.6% |
| Deale, MD | 4,757 | 57% | 18.8% |