| Index | Hardin | Texas | National |
| Average Test Scores | 42% | 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 | Hardin | Texas | National |
| Completed 8th grade | 79.6% | 79.3% | 84.3% |
| Completed high school | 78.3% | 77.8% | 83.0% |
| Completed some college | 45.1% | 57.3% | 59.4% |
| Completed associate degree | 21.4% | 34.9% | 38.5% |
| Completed bachelors | 18.4% | 28.1% | 30.3% |
| Completed masters | 6.2% | 9.6% | 11.5% |
| Completed professional degree | 0.2% | 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 Hardin. Using the proficiency score averages, the average test scores for Hardin, TX schools is 42%. The average student to teacher ratio is n/a. In Hardin, TX, an average of 79.6% of students have completed 8th grade and an average of 78.3% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Devers, TX | 385 | 84% | 74.0% |
| Daisetta, TX | 1,045 | 43% | 10.9% |
| Liberty, TX | 9,299 | 43% | 11.5% |
| Dayton, TX | 8,546 | 39% | 19.2% |
| Hull, TX | 642 | 27% | 43.8% |
| Hardin, TX | 712 | 42% | 11.8% |
| City | Population | Avg. Test Scores | National Avg. |
| Frankford, DE | 712 | 38% | 20.8% |
| Littlefork, MN | 712 | 61% | 26.6% |
| Driscoll, TX | 712 | 62% | 29.2% |
| Duncan, AZ | 712 | 42% | 13.5% |
| Kirtland, NM | 711 | 29% | 38.8% |
| Hardin, TX | 712 | 42% | 11.8% |
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