| Index | San Carlos | Arizona | National |
| Average Test Scores | 29% | 43% | 48% |
| Student/Teacher ratio | 12:1 | 18:1 | 16:1 |
| Total public schools | 4 | 1,863 | 79,221 |
| Total private schools | 1 | 316 | 24,874 |
| Total post-secondary schools | n/a | 148 | 7,963 |
| Index | San Carlos | Arizona | National |
| Completed 8th grade | 62.2% | 83.7% | 84.3% |
| Completed high school | 60.3% | 82.2% | 83.0% |
| Completed some college | 33.3% | 62.0% | 59.4% |
| Completed associate degree | 8.9% | 36.5% | 38.5% |
| Completed bachelors | 3.4% | 28.0% | 30.3% |
| Completed masters | 2.8% | 10.4% | 11.5% |
| Completed professional degree | 0.8% | 2.9% | 3.3% |
| Completed doctorate | 0.0% | 1.2% | 1.3% |
There are a total of 4 public schools, 1 private schools and n/a post-secondary schools in San Carlos. Using the proficiency score averages, the average test scores for San Carlos, AZ schools is 29%. The average student to teacher ratio is 12:1. In San Carlos, AZ, an average of 62.2% of students have completed 8th grade and an average of 60.3% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Peridot, AZ | 1,416 | 11% | 76.4% |
| San Carlos, AZ | 4,555 | 29% | 40.6% |
| City | Population | Avg. Test Scores | National Avg. |
| Vilonia, AR | 4,556 | 54% | 11.5% |
| Luverne, MN | 4,557 | 63% | 31.9% |
| Belfair, WA | 4,557 | 39% | 19.8% |
| Hawthorne, NY | 4,559 | 50% | 4.2% |
| Raynham Center, MA | 4,561 | 62% | 28.6% |
| San Carlos, AZ | 4,555 | 29% | 40.6% |
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