| | Portola Valley, CA | San Diego, CA | United States |
| Expend. per Student | $20,087 | $16,358 | $15,905 |
| Educ. Expend. per Student | $15,457 | $13,161 | $13,142 |
| Instr. Expend. per Student | $9,271 | $8,084 | $7,999 |
| Pupil/Teacher Ratio | 19.79 | 22.65 | 16.23 |
| Students per Librarian | 8055 | 18744 | 4573 |
| Students per Counselor | 431 | 513 | 530 |
| Grade School Educ. | 0.1% | 5.7% | 4.8% |
| Some High School Educ. | 0.8% | 5.0% | 6.3% |
| High School Educ. | 99.2% | 89.3% | 88.9% |
| Some College Educ. | 9.4% | 18.6% | 20.0% |
| 2 yr College Grad. | 4.9% | 7.7% | 8.7% |
| 4 yr College Grad. | 81.7% | 47.6% | 33.7% |
| Masters Grad. | 30.3% | 12.8% | 9.3% |
| Professional Degree | 11.0% | 3.6% | 2.2% |
| Doctorate Degree | 6.0% | 3.4% | 1.5% |