| 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 | 16,335 | 74% | 53.8% |
| Hebron, KY | 6,845 | 62% | 30.0% |
| Edgewood, KY | 8,779 | 62% | 28.8% |
| Independence, KY | 28,119 | 61% | 27.4% |
| Norwood, OH | 19,843 | 61% | 26.9% |
| Union, KY | 5,988 | 64% | 33.5% |
| City | Population | Avg. Test Scores | National Avg. |
| Maquoketa, IA | 5,990 | 63% | 30.2% |
| Lake Alfred, FL | 5,993 | 44% | 8.5% |
| Kodiak, AK | 5,983 | 45% | 5.8% |
| Chesapeake Beach, MD | 5,996 | 63% | 31.3% |
| Enola, PA | 5,980 | 65% | 35.9% |
| Union, KY | 5,988 | 64% | 33.5% |
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