| Index | Flagstaff | Arizona | National |
| Average Test Scores | 43% | 43% | 48% |
| Student/Teacher ratio | 16:1 | 18:1 | 16:1 |
| Total public schools | 34 | 1,863 | 79,221 |
| Total private schools | 8 | 316 | 24,874 |
| Total post-secondary schools | 6 | 148 | 7,963 |
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| Index | Flagstaff | Arizona | National |
| Completed 8th grade | 90.4% | 83.7% | 84.3% |
| Completed high school | 89.8% | 82.2% | 83.0% |
| Completed some college | 75.9% | 62.0% | 59.4% |
| Completed associate degree | 53.6% | 36.5% | 38.5% |
| Completed bachelors | 44.3% | 28.0% | 30.3% |
| Completed masters | 19.2% | 10.4% | 11.5% |
| Completed professional degree | 6.6% | 2.9% | 3.3% |
| Completed doctorate | 4.1% | 1.2% | 1.3% |
There are a total of 34 public schools, 8 private schools and 6 post-secondary schools in Flagstaff. Using the proficiency score averages, the average test scores for Flagstaff, AZ schools is 43%. The average student to teacher ratio is 16:1. In Flagstaff, AZ, an average of 90.4% of students have completed 8th grade and an average of 89.8% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Flagstaff, AZ | 73,319 | 43% | 9.4% |
| City | Population | Avg. Test Scores | National Avg. |
| Apple Valley, CA | 73,339 | 32% | 33.9% |
| Ellicott City, MD | 73,272 | 66% | 37.5% |
| Schaumburg, IL | 73,392 | 56% | 17.6% |
| Bismarck, ND | 73,435 | 47% | 1.5% |
| Cheektowaga, NY | 73,457 | 58% | 21.3% |
| Flagstaff, AZ | 73,319 | 43% | 9.4% |
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