| Index | San Carlos | California | National |
| Average Test Scores | 78% | 43% | 48% |
| Student/Teacher ratio | 21:1 | 20:1 | 16:1 |
| Total public schools | 10 | 8,308 | 79,221 |
| Total private schools | 4 | 3,438 | 24,874 |
| Total post-secondary schools | n/a | 1,085 | 7,963 |
| Index | San Carlos | California | National |
| Completed 8th grade | 96.4% | 81.1% | 84.3% |
| Completed high school | 96.3% | 79.8% | 83.0% |
| Completed some college | 87.3% | 61.5% | 59.4% |
| Completed associate degree | 70.9% | 39.8% | 38.5% |
| Completed bachelors | 63.6% | 32.0% | 30.3% |
| Completed masters | 29.1% | 11.9% | 11.5% |
| Completed professional degree | 10.6% | 3.9% | 3.3% |
| Completed doctorate | 4.9% | 1.6% | 1.3% |
There are a total of 10 public schools, 4 private schools and n/a post-secondary schools in San Carlos. Using the proficiency score averages, the average test scores for San Carlos, CA schools is 78%. The average student to teacher ratio is 21:1. In San Carlos, CA, an average of 96.4% of students have completed 8th grade and an average of 96.3% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Los Altos Hills, CA | 8,496 | 87% | 81.3% |
| Portola Valley, CA | 4,568 | 86% | 79.2% |
| Hillsborough, CA | 11,608 | 86% | 78.4% |
| Los Altos, CA | 30,878 | 86% | 78.3% |
| Cupertino, CA | 59,799 | 85% | 77.8% |
| San Carlos, CA | 29,647 | 78% | 62.4% |
| City | Population | Avg. Test Scores | National Avg. |
| Westfield, NJ | 29,690 | 76% | 59.3% |
| Rahway, NJ | 29,691 | 35% | 27.1% |
| Chicago Heights, IL | 29,598 | 23% | 52.6% |
| Highland Park, IL | 29,596 | 57% | 18.6% |
| Kent, OH | 29,698 | 70% | 46.6% |
| San Carlos, CA | 29,647 | 78% | 62.4% |
Here are the best places to live in California
See the best places to live in San Carlos
Most Dangerous States In The US
These are the largest cities in California