| Index | Cantwell | Alaska | National |
| Average Test Scores | n/a | 37% | 48% |
| Student/Teacher ratio | n/a | 18:1 | 16:1 |
| Total public schools | n/a | 285 | 79,221 |
| Total private schools | n/a | 55 | 24,874 |
| Total post-secondary schools | n/a | 11 | 7,963 |
| Index | Cantwell | Alaska | National |
| Completed 8th grade | 89.5% | 88.0% | 84.3% |
| Completed high school | 88.9% | 87.2% | 83.0% |
| Completed some college | 51.9% | 64.6% | 59.4% |
| Completed associate degree | 29.0% | 37.1% | 38.5% |
| Completed bachelors | 24.7% | 28.8% | 30.3% |
| Completed masters | 6.2% | 10.4% | 11.5% |
| Completed professional degree | 0.6% | 2.9% | 3.3% |
| Completed doctorate | 0.0% | 1.1% | 1.3% |
There are a total of n/a public schools, n/a private schools and n/a post-secondary schools in Cantwell. Using the proficiency score averages, the average test scores for Cantwell, AK schools is n/a. The average student to teacher ratio is n/a. In Cantwell, AK, an average of 89.5% of students have completed 8th grade and an average of 88.9% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Cantwell, AK | 210 | n/a |
| City | Population | Avg. Test Scores | National Avg. |
| Selden, KS | 210 | 43% | 11.5% |
| Point Reyes Station, CA | 210 | 37% | 22.9% |
| Shungnak, AK | 210 | 10% | 79.2% |
| Ogema, MN | 211 | 47% | 2.1% |
| Cowgill, MO | 211 | 30% | 37.5% |
| Cantwell, AK | 210 | n/a |
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