| 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 | 38,729 | 69% | 44.6% |
| Ellicott City, MD | 73,272 | 66% | 37.5% |
| Largo, MD | 11,633 | 65% | 35.9% |
| Crofton, MD | 29,482 | 65% | 34.9% |
| Crownsville, MD | 1,473 | 65% | 34.4% |
| Herald Harbor, MD | 2,414 | n/a |
| City | Population | Avg. Test Scores | National Avg. |
| Excelsior, MN | 2,414 | 80% | 67.4% |
| Richwood, OH | 2,414 | 73% | 51.7% |
| Bayard, NM | 2,415 | 20% | 58.0% |
| Bridgman, MI | 2,416 | 66% | 37.8% |
| Rockdale, IL | 2,416 | 30% | 38.5% |
| Herald Harbor, MD | 2,414 | n/a |
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