| | Ontario, CA | Irvine, CA | United States |
| Expend. per Student | $14,673 | $15,277 | $15,905 |
| Educ. Expend. per Student | $13,060 | $12,911 | $13,142 |
| Instr. Expend. per Student | $7,933 | $8,037 | $7,999 |
| Pupil/Teacher Ratio | 22.74 | 23.21 | 16.23 |
| Students per Librarian | 13166 | 16383 | 4573 |
| Students per Counselor | 531 | 595 | 530 |
| Grade School Educ. | 12.6% | 2.1% | 4.8% |
| Some High School Educ. | 11.8% | 1.8% | 6.3% |
| High School Educ. | 75.6% | 96.2% | 88.9% |
| Some College Educ. | 21.9% | 13.3% | 20.0% |
| 2 yr College Grad. | 8.6% | 6.6% | 8.7% |
| 4 yr College Grad. | 18.6% | 68.6% | 33.7% |
| Masters Grad. | 3.8% | 20.7% | 9.3% |
| Professional Degree | 0.6% | 5.2% | 2.2% |
| Doctorate Degree | 0.5% | 4.6% | 1.5% |