| Index | Marion | Oregon | National |
| Average Test Scores | n/a | 46% | 48% |
| Student/Teacher ratio | n/a | 20:1 | 16:1 |
| Total public schools | n/a | 1,097 | 79,221 |
| Total private schools | n/a | 361 | 24,874 |
| Total post-secondary schools | n/a | 89 | 7,963 |
| Index | Marion | Oregon | National |
| Completed 8th grade | 73.4% | 86.3% | 84.3% |
| Completed high school | 50.3% | 85.4% | 83.0% |
| Completed some college | 42.7% | 66.1% | 59.4% |
| Completed associate degree | 8.0% | 39.9% | 38.5% |
| Completed bachelors | 0.0% | 31.4% | 30.3% |
| Completed masters | 0.0% | 11.9% | 11.5% |
| Completed professional degree | 0.0% | 3.6% | 3.3% |
| Completed doctorate | 0.0% | 1.5% | 1.3% |
There are a total of n/a public schools, n/a private schools and n/a post-secondary schools in Marion. Using the proficiency score averages, the average test scores for Marion, OR schools is n/a. The average student to teacher ratio is n/a. In Marion, OR, an average of 73.4% of students have completed 8th grade and an average of 50.3% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Sublimity, OR | 2,888 | 66% | 36.5% |
| Turner, OR | 2,084 | 54% | 12.2% |
| Stayton, OR | 8,409 | 48% | = 100 |
| Albany, OR | 56,227 | 45% | 5.6% |
| Aumsville, OR | 4,308 | 45% | 6.3% |
| Marion, OR | 424 | n/a |
| City | Population | Avg. Test Scores | National Avg. |
| Cleo Springs, OK | 424 | 37% | 22.9% |
| Mayetta, KS | 424 | 37% | 22.9% |
| Green Lane, PA | 424 | 70% | 45.8% |
| Hurley, SD | 424 | 35% | 28.1% |
| Hermosa, SD | 424 | 25% | 48.4% |
| Marion, OR | 424 | n/a |
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