| Index | Roby | Texas | National |
| Average Test Scores | 44% | 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 | Roby | Texas | National |
| Completed 8th grade | 69.3% | 79.3% | 84.3% |
| Completed high school | 66.4% | 77.8% | 83.0% |
| Completed some college | 39.3% | 57.3% | 59.4% |
| Completed associate degree | 18.5% | 34.9% | 38.5% |
| Completed bachelors | 14.2% | 28.1% | 30.3% |
| Completed masters | 2.3% | 9.6% | 11.5% |
| Completed professional degree | 1.6% | 2.6% | 3.3% |
| Completed doctorate | 0.0% | 1.1% | 1.3% |
There are a total of n/a public schools, n/a private schools and n/a post-secondary schools in Roby. Using the proficiency score averages, the average test scores for Roby, TX schools is 44%. The average student to teacher ratio is n/a. In Roby, TX, an average of 69.3% of students have completed 8th grade and an average of 66.4% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Rotan, TX | 1,286 | 51% | 6.3% |
| Hamlin, TX | 1,810 | 37% | 22.9% |
| Roby, TX | 799 | 44% | 9.4% |
| City | Population | Avg. Test Scores | National Avg. |
| Eden, WI | 799 | 47% | 2.1% |
| New Kent, VA | 799 | 85% | 76.4% |
| Ossian, IA | 798 | 75% | 55.2% |
| Teec Nos Pos, AZ | 798 | 30% | 36.8% |
| Grand Ridge, FL | 800 | 66% | 37.5% |
| Roby, TX | 799 | 44% | 9.4% |
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