| Index | Overlea | Maryland | National |
| Average Test Scores | n/a | 40% | 48% |
| Student/Teacher ratio | n/a | 16:1 | 16:1 |
| Total public schools | n/a | 1,163 | 79,221 |
| Total private schools | n/a | 674 | 24,874 |
| Total post-secondary schools | n/a | 112 | 7,963 |
| Index | Overlea | Maryland | National |
| Completed 8th grade | 89.1% | 87.5% | 84.3% |
| Completed high school | 88.1% | 86.5% | 83.0% |
| Completed some college | 60.0% | 64.2% | 59.4% |
| Completed associate degree | 38.2% | 44.8% | 38.5% |
| Completed bachelors | 29.3% | 38.4% | 30.3% |
| Completed masters | 13.9% | 17.7% | 11.5% |
| Completed professional degree | 3.4% | 5.5% | 3.3% |
| Completed doctorate | 0.5% | 2.5% | 1.3% |
There are a total of n/a public schools, n/a private schools and n/a post-secondary schools in Overlea. Using the proficiency score averages, the average test scores for Overlea, MD schools is n/a. The average student to teacher ratio is n/a. In Overlea, MD, an average of 89.1% of students have completed 8th grade and an average of 88.1% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Perry Hall, MD | 27,778 | 70% | 46.4% |
| Kingsville, MD | 4,649 | 70% | 44.8% |
| Fallston, MD | 9,118 | 68% | 41.7% |
| Lutherville, MD | 6,715 | 67% | 39.2% |
| Ellicott City, MD | 73,272 | 66% | 37.5% |
| Overlea, MD | 12,063 | n/a |
| City | Population | Avg. Test Scores | National Avg. |
| Enumclaw, WA | 12,062 | 61% | 27.1% |
| Scotts Valley, CA | 12,055 | 67% | 39.2% |
| Festus, MO | 12,054 | 59% | 23.1% |
| Londonderry, NH | 12,053 | 58% | 21.0% |
| Haverstraw, NY | 12,076 | 24% | 50.0% |
| Overlea, MD | 12,063 | n/a |
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