| Index | Arlington | Oregon | National |
| Average Test Scores | 50% | 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 | Arlington | Oregon | National |
| Completed 8th grade | 85.3% | 86.3% | 84.3% |
| Completed high school | 84.3% | 85.4% | 83.0% |
| Completed some college | 47.8% | 66.1% | 59.4% |
| Completed associate degree | 16.0% | 39.9% | 38.5% |
| Completed bachelors | 11.0% | 31.4% | 30.3% |
| Completed masters | 2.4% | 11.9% | 11.5% |
| Completed professional degree | 0.8% | 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 Arlington. Using the proficiency score averages, the average test scores for Arlington, OR schools is 50%. The average student to teacher ratio is n/a. In Arlington, OR, an average of 85.3% of students have completed 8th grade and an average of 84.3% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Roosevelt, WA | 108 | 50% | 4.2% |
| Arlington, OR | 445 | 50% | 3.1% |
| City | Population | Avg. Test Scores | National Avg. |
| Broadus, MT | 445 | 41% | 15.3% |
| Lewis, KS | 445 | 40% | 16.7% |
| St. Elizabeth, MO | 445 | 69% | 42.7% |
| Laketon, IN | 445 | 48% | 1.0% |
| Hale, MO | 445 | 69% | 43.2% |
| Arlington, OR | 445 | 50% | 3.1% |
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