| Index | Union | South Carolina | National |
| Average Test Scores | 34% | 47% | 48% |
| Student/Teacher ratio | 15:1 | 16:1 | 16:1 |
| Total public schools | 5 | 932 | 79,221 |
| Total private schools | 1 | 369 | 24,874 |
| Total post-secondary schools | n/a | 96 | 7,963 |
| Index | Union | South Carolina | National |
| Completed 8th grade | 75.9% | 83.0% | 84.3% |
| Completed high school | 74.8% | 81.6% | 83.0% |
| Completed some college | 47.2% | 56.6% | 59.4% |
| Completed associate degree | 26.6% | 35.6% | 38.5% |
| Completed bachelors | 18.9% | 26.5% | 30.3% |
| Completed masters | 5.6% | 9.6% | 11.5% |
| Completed professional degree | 0.5% | 2.5% | 3.3% |
| Completed doctorate | 0.2% | 1.1% | 1.3% |
There are a total of 5 public schools, 1 private schools and n/a post-secondary schools in Union. Using the proficiency score averages, the average test scores for Union, SC schools is 34%. The average student to teacher ratio is 15:1. In Union, SC, an average of 75.9% of students have completed 8th grade and an average of 74.8% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Pacolet, SC | 2,418 | 41% | 14.6% |
| Jonesville, SC | 938 | 36% | 26.0% |
| Buffalo, SC | 1,020 | 34% | 29.2% |
| Union, SC | 7,716 | 34% | 29.9% |
| City | Population | Avg. Test Scores | National Avg. |
| Wellington, KS | 7,716 | 30% | 37.2% |
| Fort Scott, KS | 7,715 | 24% | 51.0% |
| Waite Park, MN | 7,719 | 17% | 64.6% |
| Leola, PA | 7,720 | 44% | 8.3% |
| Crookston, MN | 7,711 | 56% | 16.1% |
| Union, SC | 7,716 | 34% | 29.9% |
Here are the best places to live in South Carolina
These are the largest cities in South Carolina
Check out the 10 safest cities in South Carolina
Check out the 10 most dangerous cities in South Carolina