| Index | St. David | Arizona | National |
| Average Test Scores | 46% | 43% | 48% |
| Student/Teacher ratio | 15:1 | 18:1 | 16:1 |
| Total public schools | 2 | 1,863 | 79,221 |
| Total private schools | n/a | 316 | 24,874 |
| Total post-secondary schools | n/a | 148 | 7,963 |
| Index | St. David | Arizona | National |
| Completed 8th grade | 98.5% | 83.7% | 84.3% |
| Completed high school | 92.9% | 82.2% | 83.0% |
| Completed some college | 79.5% | 62.0% | 59.4% |
| Completed associate degree | 43.8% | 36.5% | 38.5% |
| Completed bachelors | 38.1% | 28.0% | 30.3% |
| Completed masters | 13.7% | 10.4% | 11.5% |
| Completed professional degree | 1.3% | 2.9% | 3.3% |
| Completed doctorate | 0.0% | 1.2% | 1.3% |
There are a total of 2 public schools, n/a private schools and n/a post-secondary schools in St. David. Using the proficiency score averages, the average test scores for St. David, AZ schools is 46%. The average student to teacher ratio is 15:1. In St. David, AZ, an average of 98.5% of students have completed 8th grade and an average of 92.9% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Benson, AZ | 4,857 | 55% | 13.5% |
| Tombstone, AZ | 1,205 | 41% | 13.9% |
| St. David, AZ | 1,481 | 46% | 4.9% |
| City | Population | Avg. Test Scores | National Avg. |
| Pleasant Valley, NY | 1,481 | 43% | 11.5% |
| Beattyville, KY | 1,481 | 45% | 5.7% |
| Lewiston, CA | 1,481 | 35% | 27.1% |
| Tarkio, MO | 1,481 | 45% | 7.3% |
| Greenfield, IL | 1,481 | 36% | 25.0% |
| St. David, AZ | 1,481 | 46% | 4.9% |
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