| Index | Foster City | California | National |
| Average Test Scores | 77% | 38% | 49% |
| Student/Teacher ratio | 21:1 | 20:1 | 16:1 |
| Total public schools | 4 | 8,308 | 79,221 |
| Total private schools | 3 | 3,438 | 24,874 |
| Total post-secondary schools | n/a | 1,085 | 7,963 |
| Index | Foster City | California | National |
| Completed 8th grade | 96.0% | 81.1% | 84.3% |
| Completed high school | 95.6% | 79.8% | 83.0% |
| Completed some college | 88.5% | 61.5% | 59.4% |
| Completed associate degree | 75.5% | 39.8% | 38.5% |
| Completed bachelors | 69.4% | 32.0% | 30.3% |
| Completed masters | 34.1% | 11.9% | 11.5% |
| Completed professional degree | 11.0% | 3.9% | 3.3% |
| Completed doctorate | 6.2% | 1.6% | 1.3% |
There are a total of 4 public schools, 3 private schools and n/a post-secondary schools in Foster City. Using the proficiency score averages, the average test scores for Foster City, CA schools is 77%. The average student to teacher ratio is 21:1. In Foster City, CA, an average of 96.0% of students have completed 8th grade and an average of 95.6% have completed high school.
| City, State | Population | Avg. Test Scores | National Avg. |
| Hillsborough, CA | 11,312 | 87% | 76% |
| Los Altos, CA | 30,238 | 86% | 75% |
| Los Altos Hills, CA | 8,376 | 85% | 72% |
| Palo Alto, CA | 66,649 | 82% | 68% |
| Portola Valley, CA | 4,550 | 82% | 66% |
| Foster City, CA | 32,967 | 77% | 56% |
| City, State | Population | Avg. Test Scores | National Avg. |
| Socorro, TX | 32,988 | 75% | 52% |
| Newark, DE | 32,941 | 47% | 5% |
| Lexington, MA | 32,936 | 88% | 78% |
| Ken Caryl, CO | 32,883 | 51% | 3% |
| Copperas Cove, TX | 33,052 | 75% | 52% |
| Foster City, CA | 32,967 | 77% | 56% |
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