| Index | Marietta-Alderwood | Washington | National |
| Average Test Scores | n/a | 54% | 48% |
| Student/Teacher ratio | n/a | 20:1 | 16:1 |
| Total public schools | n/a | 1,991 | 79,221 |
| Total private schools | n/a | 548 | 24,874 |
| Total post-secondary schools | n/a | 147 | 7,963 |
| Index | Marietta-Alderwood | Washington | National |
| Completed 8th grade | 83.0% | 87.5% | 84.3% |
| Completed high school | 83.0% | 86.6% | 83.0% |
| Completed some college | 68.3% | 67.7% | 59.4% |
| Completed associate degree | 35.2% | 43.3% | 38.5% |
| Completed bachelors | 26.9% | 33.6% | 30.3% |
| Completed masters | 11.6% | 12.3% | 11.5% |
| Completed professional degree | 3.5% | 3.6% | 3.3% |
| Completed doctorate | 3.5% | 1.5% | 1.3% |
There are a total of n/a public schools, n/a private schools and n/a post-secondary schools in Marietta-Alderwood. Using the proficiency score averages, the average test scores for Marietta-Alderwood, WA schools is n/a. The average student to teacher ratio is n/a. In Marietta-Alderwood, WA, an average of 83.0% of students have completed 8th grade and an average of 83.0% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Sumas, WA | 1,405 | 62% | 29.2% |
| Everson, WA | 2,773 | 58% | 21.5% |
| Lynden, WA | 14,700 | 53% | 11.0% |
| Ferndale, WA | 14,591 | 52% | 7.3% |
| Acme, WA | 123 | 51% | 6.3% |
| Marietta-Alderwood, WA | 3,463 | n/a |
| City | Population | Avg. Test Scores | National Avg. |
| Riverton, IL | 3,464 | 24% | 50.7% |
| Poteet, TX | 3,462 | 35% | 27.6% |
| Fairchild AFB, WA | 3,464 | 60% | 24.0% |
| Union Springs, AL | 3,465 | 19% | 60.8% |
| High Bridge, NJ | 3,460 | 58% | 21.4% |
| Marietta-Alderwood, WA | 3,463 | n/a |
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