Union County High School, Test Performance
| Year | Test | Grade | Measurement | Score | School District | State Average |
| TCAP | ||||||
| 2010 | Algebra I | End of course | % met std | 45.2% | 44.8% | N/A |
| 2011 | Algebra I | End of course | % met std | 49.4% | 49.4% | 47% |
| 2012 | Algebra I | End of course | % met std | 49.4% | 49.2% | 55.3% |
| 2010 | English II | End of course | % met std | 49.5% | 47.8% | N/A |
| 2011 | English II | End of course | % met std | 48.8% | 48.8% | 58% |
| 2012 | English II | End of course | % met std | 46.8% | 46.6% | 60.7% |
Some data by SchoolDigger.com.