| 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% |
| Kodiak, AK | 5,983 | 45% | 5.8% |
| Lake Alfred, FL | 5,993 | 44% | 8.5% |
| Chesapeake Beach, MD | 5,996 | 63% | 31.3% |
| District Heights, MD | 5,996 | 15% | 69.8% |
| Union, KY | 5,988 | 64% | 33.5% |
Here are the best places to live in Kentucky
These are the 10 cheapest cities in Kentucky
Check out the 10 safest cities in Kentucky
These are the largest cities in Kentucky