Union County High School, Test Performance
| Year | Test | Grade | Measurement | Score | School District | State Average |
| ECA | ||||||
| 2010 | Algebra I | End of course | % met std | 76% | 81% | 61% |
| 2011 | Algebra I | End of course | % met std | 81.5% | 87.4% | 72.4% |
| 2012 | Algebra I | End of course | % met std | 66.0% | 73.4% | N/A |
| 2010 | Biology I | End of course | % met std | 28% | 28% | 37% |
| 2011 | Biology I | End of course | % met std | 48.4% | 48.4% | 46.9% |
| 2012 | Biology I | End of course | % met std | 40.0% | 40.0% | N/A |
| 2010 | English 10 | End of course | % met std | 68% | 68% | 63% |
| 2011 | English 10 | End of course | % met std | 70% | 70% | 71.9% |
| 2012 | English 10 | End of course | % met std | 76.8% | 76.8% | N/A |
| ISTEP+ | ||||||
| 2005 | English/Language Arts | 10th Grade | % met std | 71% | 71% | 68% |
| 2006 | English/Language Arts | 10th Grade | % met std | 68% | 68% | 68% |
| 2007 | English/Language Arts | 10th Grade | % met std | 73% | 73% | 67% |
| 2008 | English/Language Arts | 10th Grade | % met std | 71% | 71% | 68% |
| 2009 | English/Language Arts | 10th Grade | % met std | 67% | 67% | 67% |
| 2005 | Math | 10th Grade | % met std | 81% | 81% | 64% |
| 2006 | Math | 10th Grade | % met std | 77% | 77% | 64% |
| 2007 | Math | 10th Grade | % met std | 82% | 82% | 65% |
| 2008 | Math | 10th Grade | % met std | 79% | 79% | 66% |
| 2009 | Math | 10th Grade | % met std | 70% | 70% | 65% |
| 2005 | English/Language Arts | 9th Grade | % met std | 60% | 60% | 66% |
| 2006 | English/Language Arts | 9th Grade | % met std | 70% | 70% | 67% |
| 2007 | English/Language Arts | 9th Grade | % met std | 62% | 62% | 68% |
| 2008 | English/Language Arts | 9th Grade | % met std | 65% | 65% | 66% |
| 2005 | Math | 9th Grade | % met std | 85% | 85% | 68% |
| 2006 | Math | 9th Grade | % met std | 87% | 87% | 71% |
| 2007 | Math | 9th Grade | % met std | 76% | 76% | 67% |
| 2008 | Math | 9th Grade | % met std | 81% | 81% | 70% |
Some data by SchoolDigger.com.
* Union County High School, Test Performance was rated 4.5 out of 5 by USA.com. The ranking was calculated based on publically available historical Math and English performance data.