| Index | Union | Kentucky | National |
| Average Test Scores | 64% | 48% | 48% |
| Student/Teacher ratio | 19:1 | 16:1 | 16:1 |
| Total public schools | 3 | 1,157 | 79,221 |
| Total private schools | n/a | 298 | 24,874 |
| Total post-secondary schools | n/a | 130 | 7,963 |

| Index | Union | Kentucky | National |
| Completed 8th grade | 94.4% | 81.0% | 84.3% |
| Completed high school | 94.4% | 77.8% | 83.0% |
| Completed some college | 78.1% | 51.3% | 59.4% |
| Completed associate degree | 59.4% | 30.5% | 38.5% |
| Completed bachelors | 45.8% | 22.7% | 30.3% |
| Completed masters | 20.1% | 9.3% | 11.5% |
| Completed professional degree | 4.1% | 2.6% | 3.3% |
| Completed doctorate | 0.8% | 0.9% | 1.3% |
There are a total of 3 public schools, n/a private schools and n/a post-secondary schools in Union. Using the proficiency score averages, the average test scores for Union, KY schools is 64%. The average student to teacher ratio is 19:1. In Union, KY, an average of 94.4% of students have completed 8th grade and an average of 94.4% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Fort Thomas, KY | 16,868 | 74% | 53.8% |
| Hebron, KY | 7,033 | 62% | 30.0% |
| Edgewood, KY | 8,969 | 62% | 28.8% |
| Independence, KY | 28,909 | 61% | 27.4% |
| Norwood, OH | 20,481 | 61% | 26.9% |
| Union, KY | 6,215 | 64% | 33.5% |
| City | Population | Avg. Test Scores | National Avg. |
| Willard, OH | 6,216 | 52% | 9.0% |
| Isanti, MN | 6,216 | 58% | 20.3% |
| Pass Christian, MS | 6,223 | 61% | 27.5% |
| Otis Orchards-East Farms, WA | 6,206 | 53% | 10.4% |
| Tequesta, FL | 6,225 | 15% | 68.8% |
| Union, KY | 6,215 | 64% | 33.5% |