| Index | Arlington | Illinois | National |
| Average Test Scores | n/a | 33% | 48% |
| Student/Teacher ratio | n/a | 18:1 | 16:1 |
| Total public schools | n/a | 3,938 | 79,221 |
| Total private schools | n/a | 1,438 | 24,874 |
| Total post-secondary schools | n/a | 306 | 7,963 |
| Index | Arlington | Illinois | National |
| Completed 8th grade | 82.6% | 86.2% | 84.3% |
| Completed high school | 81.2% | 84.7% | 83.0% |
| Completed some college | 47.0% | 61.8% | 59.4% |
| Completed associate degree | 24.2% | 40.7% | 38.5% |
| Completed bachelors | 13.4% | 32.9% | 30.3% |
| Completed masters | 6.7% | 12.7% | 11.5% |
| Completed professional degree | 1.3% | 3.4% | 3.3% |
| Completed doctorate | 1.3% | 1.2% | 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, IL schools is n/a. The average student to teacher ratio is n/a. In Arlington, IL, an average of 82.6% of students have completed 8th grade and an average of 81.2% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Dalzell, IL | 628 | 55% | 14.6% |
| Cherry, IL | 479 | 50% | 4.2% |
| Ohio, IL | 509 | 48% | 1.0% |
| Peru, IL | 9,777 | 39% | 19.8% |
| Princeton, IL | 7,589 | 33% | 30.9% |
| Arlington, IL | 211 | n/a |
| City | Population | Avg. Test Scores | National Avg. |
| Cowgill, MO | 211 | 30% | 37.5% |
| Ogema, MN | 211 | 47% | 2.1% |
| Samoa, CA | 211 | 25% | 47.9% |
| Soper, OK | 211 | 22% | 53.6% |
| Danbury, NC | 211 | 47% | 2.1% |
| Arlington, IL | 211 | n/a |
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