| Index | Herald Harbor | 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 | Herald Harbor | Maryland | National |
| Completed 8th grade | 97.5% | 87.5% | 84.3% |
| Completed high school | 97.5% | 86.5% | 83.0% |
| Completed some college | 83.8% | 64.2% | 59.4% |
| Completed associate degree | 58.7% | 44.8% | 38.5% |
| Completed bachelors | 56.2% | 38.4% | 30.3% |
| Completed masters | 16.7% | 17.7% | 11.5% |
| Completed professional degree | 6.6% | 5.5% | 3.3% |
| Completed doctorate | 3.2% | 2.5% | 1.3% |
There are a total of n/a public schools, n/a private schools and n/a post-secondary schools in Herald Harbor. Using the proficiency score averages, the average test scores for Herald Harbor, MD schools is n/a. The average student to teacher ratio is n/a. In Herald Harbor, MD, an average of 97.5% of students have completed 8th grade and an average of 97.5% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Severna Park, MD | 39,770 | 69% | 44.6% |
| Ellicott City, MD | 75,837 | 66% | 37.5% |
| Largo, MD | 12,034 | 65% | 35.9% |
| Crofton, MD | 30,100 | 65% | 34.9% |
| Crownsville, MD | 1,506 | 65% | 34.4% |
| Herald Harbor, MD | 2,496 | n/a |
| City | Population | Avg. Test Scores | National Avg. |
| Milford, NE | 2,496 | 70% | 44.8% |
| Spirit Lake, ID | 2,497 | 54% | 12.8% |
| Carlisle, KY | 2,499 | 46% | 3.6% |
| Bridgman, MI | 2,493 | 66% | 37.8% |
| Waynesboro, TN | 2,499 | 28% | 41.3% |
| Herald Harbor, MD | 2,496 | n/a |