| Index | Gun Barrel City | Texas | National |
| Average Test Scores | 67% | 47% | 48% |
| Student/Teacher ratio | n/a | 14:1 | 16:1 |
| Total public schools | n/a | 7,418 | 79,221 |
| Total private schools | n/a | 1,267 | 24,874 |
| Total post-secondary schools | n/a | 463 | 7,963 |
| Index | Gun Barrel City | Texas | National |
| Completed 8th grade | 71.0% | 79.3% | 84.3% |
| Completed high school | 69.4% | 77.8% | 83.0% |
| Completed some college | 41.9% | 57.3% | 59.4% |
| Completed associate degree | 18.8% | 34.9% | 38.5% |
| Completed bachelors | 15.0% | 28.1% | 30.3% |
| Completed masters | 3.8% | 9.6% | 11.5% |
| Completed professional degree | 0.3% | 2.6% | 3.3% |
| Completed doctorate | 0.3% | 1.1% | 1.3% |
There are a total of n/a public schools, n/a private schools and n/a post-secondary schools in Gun Barrel City. Using the proficiency score averages, the average test scores for Gun Barrel City, TX schools is 67%. The average student to teacher ratio is n/a. In Gun Barrel City, TX, an average of 71.0% of students have completed 8th grade and an average of 69.4% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Tool, TX | 2,689 | 72% | 50.0% |
| Mabank, TX | 3,821 | 60% | 24.4% |
| Malakoff, TX | 2,652 | 59% | 23.3% |
| Eustace, TX | 1,375 | 51% | 5.9% |
| Scurry, TX | 460 | 48% | 0.3% |
| Gun Barrel City, TX | 6,401 | 67% | 39.6% |
| City | Population | Avg. Test Scores | National Avg. |
| Schuyler, NE | 6,406 | 43% | 10.9% |
| Rushville, IN | 6,395 | 53% | 10.4% |
| Plymouth Meeting, PA | 6,407 | 71% | 47.9% |
| Powell, WY | 6,395 | 66% | 38.1% |
| Sharon, MA | 6,394 | 77% | 60.0% |
| Gun Barrel City, TX | 6,401 | 67% | 39.6% |
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