| | Erwin, TN | Marietta, GA | United States |
| Expend. per Student | $10,294 | $13,877 | $15,905 |
| Educ. Expend. per Student | $9,769 | $11,675 | $13,142 |
| Instr. Expend. per Student | $5,872 | $7,686 | $7,999 |
| Pupil/Teacher Ratio | 13.79 | 14.47 | 16.23 |
| Students per Librarian | 344 | 537 | 4573 |
| Students per Counselor | 298 | 376 | 530 |
| Grade School Educ. | 7.3% | 5.9% | 4.8% |
| Some High School Educ. | 7.8% | 3.8% | 6.3% |
| High School Educ. | 84.9% | 90.4% | 88.9% |
| Some College Educ. | 24.6% | 19.3% | 20.0% |
| 2 yr College Grad. | 9.6% | 7.1% | 8.7% |
| 4 yr College Grad. | 16.4% | 45.2% | 33.7% |
| Masters Grad. | 3.4% | 11.3% | 9.3% |
| Professional Degree | 0.6% | 2.8% | 2.2% |
| Doctorate Degree | 0.3% | 1.2% | 1.5% |