| | Johnston, SC | United States, SC |
| Expend. per Student | $16,334 | $15,905 |
| Educ. Expend. per Student | $12,081 | $13,142 |
| Instr. Expend. per Student | $6,526 | $7,999 |
| Pupil/Teacher Ratio | 12.57 | 16.23 |
| Students per Librarian | 395 | 4573 |
| Students per Counselor | 316 | 530 |
| Grade School Educ. | 8.5% | 4.8% |
| Some High School Educ. | 8.9% | 6.3% |
| High School Educ. | 82.7% | 88.9% |
| Some College Educ. | 14.9% | 20.0% |
| 2 yr College Grad. | 9.2% | 8.7% |
| 4 yr College Grad. | 15.7% | 33.7% |
| Masters Grad. | 8.4% | 9.3% |
| Professional Degree | 0.2% | 2.2% |
| Doctorate Degree | 0.2% | 1.5% |