| | Mercer Island, WA | Milton, WA | United States |
| Expend. per Student | $20,069 | $18,363 | $15,905 |
| Educ. Expend. per Student | $14,996 | $14,056 | $13,142 |
| Instr. Expend. per Student | $8,846 | $7,966 | $7,999 |
| Pupil/Teacher Ratio | 18.53 | 18.68 | 16.23 |
| Students per Librarian | 989 | 1139 | 4573 |
| Students per Counselor | 455 | 441 | 530 |
| Grade School Educ. | 0.9% | 3.1% | 4.8% |
| Some High School Educ. | 0.8% | 4.6% | 6.3% |
| High School Educ. | 98.3% | 92.3% | 88.9% |
| Some College Educ. | 9.4% | 23.0% | 20.0% |
| 2 yr College Grad. | 5.3% | 12.7% | 8.7% |
| 4 yr College Grad. | 77.5% | 20.2% | 33.7% |
| Masters Grad. | 20.9% | 4.5% | 9.3% |
| Professional Degree | 9.9% | 0.6% | 2.2% |
| Doctorate Degree | 7.5% | 0.2% | 1.5% |