| Index | Hardin | Kentucky | National |
| Average Test Scores | n/a | 48% | 48% |
| Student/Teacher ratio | n/a | 16:1 | 16:1 |
| Total public schools | n/a | 1,157 | 79,221 |
| Total private schools | n/a | 298 | 24,874 |
| Total post-secondary schools | n/a | 130 | 7,963 |

| Index | Hardin | Kentucky | National |
| Completed 8th grade | 76.3% | 81.0% | 84.3% |
| Completed high school | 73.2% | 77.8% | 83.0% |
| Completed some college | 28.8% | 51.3% | 59.4% |
| Completed associate degree | 11.7% | 30.5% | 38.5% |
| Completed bachelors | 5.9% | 22.7% | 30.3% |
| Completed masters | 2.8% | 9.3% | 11.5% |
| Completed professional degree | 0.0% | 2.6% | 3.3% |
| Completed doctorate | 0.0% | 0.9% | 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, KY schools is n/a. The average student to teacher ratio is n/a. In Hardin, KY, an average of 76.3% of students have completed 8th grade and an average of 73.2% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Symsonia, KY | 551 | 70% | 44.8% |
| Murray, KY | 19,988 | 61% | 26.6% |
| Benton, KY | 4,641 | 44% | 8.1% |
| Hardin, KY | 520 | n/a |
| City | Population | Avg. Test Scores | National Avg. |
| Irwinton, GA | 520 | 30% | 37.5% |
| Ohio, IL | 520 | 48% | 1.0% |
| Henry, TN | 520 | 27% | 43.8% |
| Towner, ND | 520 | 41% | 14.6% |
| Emery, SD | 520 | 42% | 12.0% |
| Hardin, KY | 520 | n/a |