| | Custer, SD | Knoxville, TN | United States |
| Expend. per Student | $13,774 | $9,689 | $15,905 |
| Educ. Expend. per Student | $12,279 | $9,352 | $13,142 |
| Instr. Expend. per Student | $6,926 | $5,615 | $7,999 |
| Pupil/Teacher Ratio | 12.3 | 15.01 | 16.23 |
| Students per Librarian | 0 | 713 | 4573 |
| Students per Counselor | 301 | 433 | 530 |
| Grade School Educ. | 2.1% | 3.1% | 4.8% |
| Some High School Educ. | 4.1% | 7.0% | 6.3% |
| High School Educ. | 93.8% | 89.9% | 88.9% |
| Some College Educ. | 19.5% | 20.4% | 20.0% |
| 2 yr College Grad. | 8.0% | 8.5% | 8.7% |
| 4 yr College Grad. | 29.4% | 33.4% | 33.7% |
| Masters Grad. | 7.7% | 8.7% | 9.3% |
| Professional Degree | 1.3% | 2.4% | 2.2% |
| Doctorate Degree | 1.2% | 2.2% | 1.5% |