| | Hilton Head Island, SC | Napa, CA | United States |
| Expend. per Student | $15,072 | $18,219 | $15,905 |
| Educ. Expend. per Student | $12,547 | $13,371 | $13,142 |
| Instr. Expend. per Student | $7,547 | $8,168 | $7,999 |
| Pupil/Teacher Ratio | 12.17 | 22.95 | 16.23 |
| Students per Librarian | 343 | 57603 | 4573 |
| Students per Counselor | 289 | 537 | 530 |
| Grade School Educ. | 2.2% | 10.5% | 4.8% |
| Some High School Educ. | 5.2% | 5.5% | 6.3% |
| High School Educ. | 92.5% | 84.0% | 88.9% |
| Some College Educ. | 15.1% | 21.7% | 20.0% |
| 2 yr College Grad. | 6.6% | 8.8% | 8.7% |
| 4 yr College Grad. | 52.6% | 35.2% | 33.7% |
| Masters Grad. | 15.7% | 7.8% | 9.3% |
| Professional Degree | 4.2% | 2.7% | 2.2% |
| Doctorate Degree | 3.2% | 1.1% | 1.5% |