| Index | Arlington | South Dakota | National |
| Average Test Scores | 57% | 48% | 48% |
| Student/Teacher ratio | 13:1 | 14:1 | 16:1 |
| Total public schools | 3 | 340 | 79,221 |
| Total private schools | n/a | 76 | 24,874 |
| Total post-secondary schools | n/a | 25 | 7,963 |
| Index | Arlington | South Dakota | National |
| Completed 8th grade | 86.8% | 89.1% | 84.3% |
| Completed high school | 79.0% | 86.8% | 83.0% |
| Completed some college | 47.5% | 60.4% | 59.4% |
| Completed associate degree | 31.8% | 38.5% | 38.5% |
| Completed bachelors | 22.5% | 27.5% | 30.3% |
| Completed masters | 4.2% | 8.1% | 11.5% |
| Completed professional degree | 0.0% | 2.5% | 3.3% |
| Completed doctorate | 0.0% | 1.2% | 1.3% |
There are a total of 3 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, SD schools is 57%. The average student to teacher ratio is 13:1. In Arlington, SD, an average of 86.8% of students have completed 8th grade and an average of 79.0% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Volga, SD | 1,948 | 56% | 17.4% |
| Lake Preston, SD | 448 | 53% | 11.1% |
| Estelline, SD | 858 | 51% | 5.6% |
| Arlington, SD | 1,007 | 57% | 19.5% |
| City | Population | Avg. Test Scores | National Avg. |
| Savoy, TX | 1,007 | 53% | 10.9% |
| Naalehu, HI | 1,007 | 28% | 41.7% |
| Franklin, GA | 1,007 | 56% | 17.4% |
| Sidney, IA | 1,007 | 72% | 50.0% |
| Le Roy, MN | 1,006 | 54% | 12.2% |
| Arlington, SD | 1,007 | 57% | 19.5% |
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