| 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 |
| 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 | 2,483 | 69% | 43.8% |
| Tilghman Island, MD | 831 | 65% | 35.4% |
| Huntingtown, MD | 3,029 | 64% | 33.6% |
| Chesapeake Beach, MD | 5,996 | 63% | 31.3% |
| Stevensville, MD | 8,145 | 60% | 24.8% |
| Deale, MD | 4,592 | 57% | 18.8% |
| City | Population | Avg. Test Scores | National Avg. |
| Wayzata, MN | 4,591 | 80% | 65.6% |
| Mount Ephraim, NJ | 4,591 | 53% | 10.9% |
| Breckenridge Hills, MO | 4,590 | 31% | 35.4% |
| Palacios, TX | 4,589 | 48% | 0.3% |
| Haleiwa, HI | 4,589 | 64% | 32.3% |
| Deale, MD | 4,592 | 57% | 18.8% |
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