| Index | Mardela Springs | Maryland | National |
| Average Test Scores | 55% | 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 | Mardela Springs | Maryland | National |
| Completed 8th grade | 95.6% | 87.5% | 84.3% |
| Completed high school | 95.6% | 86.5% | 83.0% |
| Completed some college | 48.8% | 64.2% | 59.4% |
| Completed associate degree | 29.6% | 44.8% | 38.5% |
| Completed bachelors | 20.7% | 38.4% | 30.3% |
| Completed masters | 14.8% | 17.7% | 11.5% |
| Completed professional degree | 3.0% | 5.5% | 3.3% |
| Completed doctorate | 0.0% | 2.5% | 1.3% |
There are a total of n/a public schools, n/a private schools and n/a post-secondary schools in Mardela Springs. Using the proficiency score averages, the average test scores for Mardela Springs, MD schools is 55%. The average student to teacher ratio is n/a. In Mardela Springs, MD, an average of 95.6% of students have completed 8th grade and an average of 95.6% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Secretary, MD | 497 | 52% | 8.3% |
| Delmar, MD | 3,321 | 48% | 1.0% |
| Hebron, MD | 1,019 | 47% | 2.1% |
| Seaford, DE | 7,897 | 45% | 6.3% |
| Delmar, DE | 2,153 | 45% | 6.8% |
| Mardela Springs, MD | 487 | 55% | 15.1% |
| City | Population | Avg. Test Scores | National Avg. |
| Polo, MO | 487 | 45% | 6.5% |
| Canaseraga, NY | 487 | 57% | 18.8% |
| Paauilo, HI | 487 | 30% | 38.5% |
| Badger, MN | 487 | 64% | 33.3% |
| Lyerly, GA | 487 | 45% | 6.3% |
| Mardela Springs, MD | 487 | 55% | 15.1% |
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