| Index | Petersburg | Alaska | National |
| Average Test Scores | 60% | 37% | 48% |
| Student/Teacher ratio | 17:1 | 18:1 | 16:1 |
| Total public schools | 3 | 285 | 79,221 |
| Total private schools | n/a | 55 | 24,874 |
| Total post-secondary schools | n/a | 11 | 7,963 |
| Index | Petersburg | Alaska | National |
| Completed 8th grade | 88.8% | 88.0% | 84.3% |
| Completed high school | 88.1% | 87.2% | 83.0% |
| Completed some college | 59.3% | 64.6% | 59.4% |
| Completed associate degree | 34.9% | 37.1% | 38.5% |
| Completed bachelors | 25.6% | 28.8% | 30.3% |
| Completed masters | 6.7% | 10.4% | 11.5% |
| Completed professional degree | 0.6% | 2.9% | 3.3% |
| Completed doctorate | 0.2% | 1.1% | 1.3% |
There are a total of 3 public schools, n/a private schools and n/a post-secondary schools in Petersburg. Using the proficiency score averages, the average test scores for Petersburg, AK schools is 60%. The average student to teacher ratio is 17:1. In Petersburg, AK, an average of 88.8% of students have completed 8th grade and an average of 88.1% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Petersburg, AK | 3,170 | 60% | 24.3% |
| City | Population | Avg. Test Scores | National Avg. |
| Bushnell, FL | 3,170 | 59% | 22.9% |
| Blue Ridge, VA | 3,169 | 87% | 81.3% |
| Huntington, TX | 3,171 | 48% | 0.2% |
| Pickens, SC | 3,169 | 53% | 9.9% |
| Cadiz, OH | 3,169 | 61% | 27.1% |
| Petersburg, AK | 3,170 | 60% | 24.3% |
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