| Index | Portola Valley | California | National |
| Average Test Scores | 86% | 43% | 48% |
| Student/Teacher ratio | 14:1 | 20:1 | 16:1 |
| Total public schools | 2 | 8,308 | 79,221 |
| Total private schools | 1 | 3,438 | 24,874 |
| Total post-secondary schools | n/a | 1,085 | 7,963 |
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| Index | Portola Valley | California | National |
| Completed 8th grade | 96.6% | 81.1% | 84.3% |
| Completed high school | 96.3% | 79.8% | 83.0% |
| Completed some college | 87.5% | 61.5% | 59.4% |
| Completed associate degree | 81.0% | 39.8% | 38.5% |
| Completed bachelors | 78.9% | 32.0% | 30.3% |
| Completed masters | 49.4% | 11.9% | 11.5% |
| Completed professional degree | 23.7% | 3.9% | 3.3% |
| Completed doctorate | 14.0% | 1.6% | 1.3% |
There are a total of 2 public schools, 1 private schools and n/a post-secondary schools in Portola Valley. Using the proficiency score averages, the average test scores for Portola Valley, CA schools is 86%. The average student to teacher ratio is 14:1. In Portola Valley, CA, an average of 96.6% 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% |
| Hillsborough, CA | 11,608 | 86% | 78.4% |
| Los Altos, CA | 30,878 | 86% | 78.3% |
| Cupertino, CA | 59,799 | 85% | 77.8% |
| Saratoga, CA | 31,084 | 82% | 71.2% |
| Portola Valley, CA | 4,568 | 86% | 79.2% |
| City | Population | Avg. Test Scores | National Avg. |
| Longbranch, WA | 4,568 | 62% | 29.2% |
| Humboldt, IA | 4,568 | 81% | 68.1% |
| Williamstown, MA | 4,565 | 67% | 39.1% |
| Canastota, NY | 4,572 | 45% | 6.9% |
| Hollister, MO | 4,564 | 40% | 17.4% |
| Portola Valley, CA | 4,568 | 86% | 79.2% |
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