Byron Nelson High School, Test Performance
| Year | Test | Grade | Measurement | Score | School District | State Average |
| STAAR EOC | ||||||
| 2012 | Algebra I | End of course | % met std | 86% | 92% | 83% |
| 2013 | Algebra I | End of course | % met std | 86% | 90% | 78% |
| 2012 | Algebra II | End of course | % met std | 45% | 41% | 65% |
| 2013 | Algebra II | End of course | % met std | 100% | 100% | 97% |
| 2012 | Biology | End of course | % met std | 97% | 93% | 87% |
| 2013 | Biology | End of course | % met std | 95% | 94% | 85% |
| 2013 | Chemistry | End of course | % met std | 95% | 94% | 84% |
| 2012 | English I Reading | End of course | % met std | 90% | 86% | 68% |
| 2013 | English I Reading | End of course | % met std | 87% | 83% | 65% |
| 2012 | English I Writing | End of course | % met std | 73% | 68% | 55% |
| 2013 | English I Writing | End of course | % met std | 71% | 65% | 48% |
| 2013 | English II Reading | End of course | % met std | 91% | 89% | 78% |
| 2013 | English II Writing | End of course | % met std | 69% | 64% | 52% |
| 2013 | English III Reading | End of course | % met std | 37% | 38% | 63% |
| 2012 | Geometry | End of course | % met std | 100% | 100% | 98% |
| 2013 | Geometry | End of course | % met std | 93% | 90% | 86% |
| 2013 | U.S. History | End of course | % met std | 88% | 82% | 73% |
| 2012 | World Geography | End of course | % met std | 95% | 93% | 81% |
| 2013 | World Geography | End of course | % met std | 91% | 89% | 75% |
| 2013 | World History | End of course | % met std | 89% | 86% | 70% |
| TAKS | ||||||
| 2011 | Mathematics | 10th Grade | % met std | 89% | 84% | N/A |
| 2011 | Reading | 10th Grade | % met std | 96% | 95% | N/A |
| 2011 | Science | 10th Grade | % met std | 92% | 88% | N/A |
| 2011 | Social Studies | 10th Grade | % met std | 98% | 98% | N/A |
| 2011 | Mathematics | 11th Grade | % met std | 95% | 94% | N/A |
| 2011 | Reading | 11th Grade | % met std | 98% | 98% | N/A |
| 2011 | Science | 11th Grade | % met std | 97% | 97% | N/A |
| 2011 | Social Studies | 11th Grade | % met std | 99% | 100% | N/A |
| 2011 | Mathematics | 9th Grade | % met std | 90% | 85% | N/A |
| 2011 | Reading | 9th Grade | % met std | 99% | 96% | N/A |
Some data by SchoolDigger.com.