| | Rockwall, TX | Ellicott City, MD | United States |
| Expend. per Student | $13,898 | $17,912 | $15,905 |
| Educ. Expend. per Student | $8,822 | $16,615 | $13,142 |
| Instr. Expend. per Student | $5,419 | $11,381 | $7,999 |
| Pupil/Teacher Ratio | 16.23 | 13.46 | 16.23 |
| Students per Librarian | 896 | 363 | 4573 |
| Students per Counselor | 469 | 331 | 530 |
| Grade School Educ. | 2.6% | 1.9% | 4.8% |
| Some High School Educ. | 2.7% | 1.7% | 6.3% |
| High School Educ. | 94.8% | 96.4% | 88.9% |
| Some College Educ. | 22.4% | 11.3% | 20.0% |
| 2 yr College Grad. | 8.4% | 4.6% | 8.7% |
| 4 yr College Grad. | 47.5% | 68.7% | 33.7% |
| Masters Grad. | 11.1% | 24.6% | 9.3% |
| Professional Degree | 2.7% | 4.9% | 2.2% |
| Doctorate Degree | 3.2% | 6.6% | 1.5% |