| Index | Johnson City | Texas | National |
| Average Test Scores | 53% | 47% | 48% |
| Student/Teacher ratio | 12:1 | 14:1 | 16:1 |
| Total public schools | 3 | 7,418 | 79,221 |
| Total private schools | n/a | 1,267 | 24,874 |
| Total post-secondary schools | n/a | 463 | 7,963 |
| Index | Johnson City | Texas | National |
| Completed 8th grade | 86.8% | 79.3% | 84.3% |
| Completed high school | 84.4% | 77.8% | 83.0% |
| Completed some college | 51.6% | 57.3% | 59.4% |
| Completed associate degree | 25.8% | 34.9% | 38.5% |
| Completed bachelors | 20.1% | 28.1% | 30.3% |
| Completed masters | 5.2% | 9.6% | 11.5% |
| Completed professional degree | 1.8% | 2.6% | 3.3% |
| Completed doctorate | 0.4% | 1.1% | 1.3% |
There are a total of 3 public schools, n/a private schools and n/a post-secondary schools in Johnson City. Using the proficiency score averages, the average test scores for Johnson City, TX schools is 53%. The average student to teacher ratio is 12:1. In Johnson City, TX, an average of 86.8% of students have completed 8th grade and an average of 84.4% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Blanco, TX | 2,670 | 53% | 10.8% |
| Johnson City, TX | 1,780 | 53% | 11.1% |
| City | Population | Avg. Test Scores | National Avg. |
| Hico, TX | 1,780 | 56% | 16.1% |
| Zeigler, IL | 1,779 | 21% | 57.3% |
| Long Lake, MN | 1,779 | 77% | 59.7% |
| Oologah, OK | 1,779 | 40% | 16.3% |
| Oberlin, LA | 1,778 | 77% | 60.4% |
| Johnson City, TX | 1,780 | 53% | 11.1% |
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