| | Castle Rock, CO | El Dorado Hills, CA | United States |
| Expend. per Student | $12,699 | $11,688 | $15,905 |
| Educ. Expend. per Student | $10,748 | $10,787 | $13,142 |
| Instr. Expend. per Student | $6,132 | $6,768 | $7,999 |
| Pupil/Teacher Ratio | 17.62 | 22.58 | 16.23 |
| Students per Librarian | 914 | 10681 | 4573 |
| Students per Counselor | 279 | 767 | 530 |
| Grade School Educ. | 0.9% | 0.4% | 4.8% |
| Some High School Educ. | 1.9% | 2.1% | 6.3% |
| High School Educ. | 97.2% | 97.4% | 88.9% |
| Some College Educ. | 22.0% | 21.0% | 20.0% |
| 2 yr College Grad. | 8.5% | 9.9% | 8.7% |
| 4 yr College Grad. | 52.0% | 55.3% | 33.7% |
| Masters Grad. | 12.9% | 13.8% | 9.3% |
| Professional Degree | 1.7% | 4.1% | 2.2% |
| Doctorate Degree | 1.5% | 2.0% | 1.5% |