| Index | Glassmanor | 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 | Glassmanor | Maryland | National |
| Completed 8th grade | 77.2% | 87.5% | 84.3% |
| Completed high school | 76.6% | 86.5% | 83.0% |
| Completed some college | 45.2% | 64.2% | 59.4% |
| Completed associate degree | 17.8% | 44.8% | 38.5% |
| Completed bachelors | 12.5% | 38.4% | 30.3% |
| Completed masters | 4.8% | 17.7% | 11.5% |
| Completed professional degree | 0.5% | 5.5% | 3.3% |
| Completed doctorate | 0.2% | 2.5% | 1.3% |
There are a total of n/a public schools, n/a private schools and n/a post-secondary schools in Glassmanor. Using the proficiency score averages, the average test scores for Glassmanor, MD schools is n/a. The average student to teacher ratio is n/a. In Glassmanor, MD, an average of 77.2% of students have completed 8th grade and an average of 76.6% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| McLean, VA | 48,566 | 95% | 97.1% |
| Burke, VA | 44,077 | 90% | 86.7% |
| Vienna, VA | 16,532 | 88% | 83.4% |
| Rose Hill, VA | 21,846 | 85% | 76.0% |
| Lorton, VA | 20,924 | 84% | 75.0% |
| Glassmanor, MD | 16,305 | n/a |
| City | Population | Avg. Test Scores | National Avg. |
| Somerton, AZ | 16,301 | 36% | 25.2% |
| Lebanon, IN | 16,317 | 52% | 8.2% |
| Douglas, AZ | 16,292 | 33% | 30.6% |
| Beaver Dam, WI | 16,322 | 47% | 1.4% |
| Coos Bay, OR | 16,326 | 40% | 16.1% |
| Glassmanor, MD | 16,305 | n/a |
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