| Index | Galena | Maryland | National |
| Average Test Scores | 20% | 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 | Galena | Maryland | National |
| Completed 8th grade | 89.1% | 87.5% | 84.3% |
| Completed high school | 88.4% | 86.5% | 83.0% |
| Completed some college | 52.4% | 64.2% | 59.4% |
| Completed associate degree | 33.0% | 44.8% | 38.5% |
| Completed bachelors | 24.9% | 38.4% | 30.3% |
| Completed masters | 7.2% | 17.7% | 11.5% |
| Completed professional degree | 2.9% | 5.5% | 3.3% |
| Completed doctorate | 1.8% | 2.5% | 1.3% |
There are a total of n/a public schools, n/a private schools and n/a post-secondary schools in Galena. Using the proficiency score averages, the average test scores for Galena, MD schools is 20%. The average student to teacher ratio is n/a. In Galena, MD, an average of 89.1% of students have completed 8th grade and an average of 88.4% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Hartly, DE | 167 | 62% | 29.2% |
| Townsend, DE | 2,546 | 60% | 25.0% |
| Church Hill, MD | 866 | 57% | 18.8% |
| Odessa, DE | 352 | 56% | 16.7% |
| Middletown, DE | 22,350 | 55% | 15.1% |
| Galena, MD | 758 | 20% | 59.4% |
| City | Population | Avg. Test Scores | National Avg. |
| Oljato-Monument Valley, UT | 758 | 9% | 80.7% |
| Hamlet, IN | 758 | 35% | 28.1% |
| Boswell, IN | 758 | 25% | 49.0% |
| New Underwood, SD | 758 | 55% | 14.2% |
| Trimont, MN | 758 | 54% | 11.5% |
| Galena, MD | 758 | 20% | 59.4% |
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