| Index | Holbrook | Arizona | National |
| Average Test Scores | 37% | 43% | 48% |
| Student/Teacher ratio | 15:1 | 18:1 | 16:1 |
| Total public schools | 7 | 1,863 | 79,221 |
| Total private schools | 2 | 316 | 24,874 |
| Total post-secondary schools | 1 | 148 | 7,963 |
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| Index | Holbrook | Arizona | National |
| Completed 8th grade | 80.0% | 83.7% | 84.3% |
| Completed high school | 78.5% | 82.2% | 83.0% |
| Completed some college | 50.4% | 62.0% | 59.4% |
| Completed associate degree | 19.9% | 36.5% | 38.5% |
| Completed bachelors | 15.2% | 28.0% | 30.3% |
| Completed masters | 6.0% | 10.4% | 11.5% |
| Completed professional degree | 1.7% | 2.9% | 3.3% |
| Completed doctorate | 1.3% | 1.2% | 1.3% |
There are a total of 7 public schools, 2 private schools and 1 post-secondary schools in Holbrook. Using the proficiency score averages, the average test scores for Holbrook, AZ schools is 37%. The average student to teacher ratio is 15:1. In Holbrook, AZ, an average of 80.0% of students have completed 8th grade and an average of 78.5% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Joseph City, AZ | 1,908 | 54% | 12.8% |
| Holbrook, AZ | 5,073 | 37% | 22.3% |
| City | Population | Avg. Test Scores | National Avg. |
| Chestertown, MD | 5,073 | 33% | 31.8% |
| Penn Yan, NY | 5,072 | 60% | 24.7% |
| Creve Coeur, IL | 5,074 | 10% | 79.2% |
| Montevideo, MN | 5,071 | 48% | 0.5% |
| Vinton, IA | 5,075 | 80% | 66.0% |
| Holbrook, AZ | 5,073 | 37% | 22.3% |
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