| | Petaluma, CA | Cambridge, MA | United States |
| Expend. per Student | $16,850 | $23,560 | $15,905 |
| Educ. Expend. per Student | $13,921 | $19,196 | $13,142 |
| Instr. Expend. per Student | $8,508 | $12,141 | $7,999 |
| Pupil/Teacher Ratio | 20.82 | 11.99 | 16.23 |
| Students per Librarian | 14240 | 354 | 4573 |
| Students per Counselor | 399 | 331 | 530 |
| Grade School Educ. | 4.6% | 2.6% | 4.8% |
| Some High School Educ. | 4.8% | 1.8% | 6.3% |
| High School Educ. | 90.5% | 95.6% | 88.9% |
| Some College Educ. | 24.2% | 7.4% | 20.0% |
| 2 yr College Grad. | 9.4% | 2.0% | 8.7% |
| 4 yr College Grad. | 40.3% | 80.0% | 33.7% |
| Masters Grad. | 9.9% | 28.3% | 9.3% |
| Professional Degree | 3.4% | 7.1% | 2.2% |
| Doctorate Degree | 1.4% | 15.1% | 1.5% |