| Index | Arco | Idaho | National |
| Average Test Scores | 43% | 47% | 48% |
| Student/Teacher ratio | 16:1 | 17:1 | 16:1 |
| Total public schools | 4 | 446 | 79,221 |
| Total private schools | 1 | 83 | 24,874 |
| Total post-secondary schools | n/a | 34 | 7,963 |
| Index | Arco | Idaho | National |
| Completed 8th grade | 86.8% | 85.7% | 84.3% |
| Completed high school | 85.3% | 84.8% | 83.0% |
| Completed some college | 53.3% | 62.4% | 59.4% |
| Completed associate degree | 19.4% | 35.6% | 38.5% |
| Completed bachelors | 10.8% | 26.2% | 30.3% |
| Completed masters | 7.3% | 8.4% | 11.5% |
| Completed professional degree | 0.0% | 2.6% | 3.3% |
| Completed doctorate | 0.0% | 1.1% | 1.3% |
There are a total of 4 public schools, 1 private schools and n/a post-secondary schools in Arco. Using the proficiency score averages, the average test scores for Arco, ID schools is 43%. The average student to teacher ratio is 16:1. In Arco, ID, an average of 86.8% of students have completed 8th grade and an average of 85.3% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Arco, ID | 758 | 43% | 9.9% |
| City | Population | Avg. Test Scores | National Avg. |
| New Underwood, SD | 758 | 55% | 14.2% |
| Trimont, MN | 758 | 54% | 11.5% |
| Oljato-Monument Valley, UT | 758 | 9% | 80.7% |
| Hamlet, IN | 758 | 35% | 28.1% |
| Galena, MD | 758 | 20% | 59.4% |
| Arco, ID | 758 | 43% | 9.9% |
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