Lyndhurst High School, Test Performance
| Year | Test | Grade | Measurement | Score | School District | State Average |
| HSPA | ||||||
| 2003 | Language Arts Literacy | 11th Grade | % proficient | 84.8% | 84.8% | 80.1% |
| 2004 | Language Arts Literacy | 11th Grade | % proficient | 82.9% | 82.9% | 82.2% |
| 2005 | Language Arts Literacy | 11th Grade | % proficient | 90.1% | 90.1% | 83.2% |
| 2006 | Language Arts Literacy | 11th Grade | % proficient | 84.2% | 84.2% | 83.5% |
| 2007 | Language Arts Literacy | 11th Grade | % proficient | 93.9% | 93.9% | 85.4% |
| 2008 | Language Arts Literacy | 11th Grade | % proficient | 85.5% | 85.5% | 83.4% |
| 2009 | Language Arts Literacy | 11th Grade | % proficient | 86.6% | 86.6% | 84.5% |
| 2010 | Language Arts Literacy | 11th Grade | % proficient | 87.2% | 87.2% | 88.0% |
| 2011 | Language Arts Literacy | 11th Grade | % proficient | 91.7% | 91.7% | 89.6% |
| 2012 | Language Arts Literacy | 11th Grade | % proficient | 94.9% | 94.9% | 91.5% |
| 2013 | Language Arts Literacy | 11th Grade | % proficient | 94.1% | 94.1% | 91.6% |
| 2003 | Math | 11th Grade | % proficient | 77.1% | 77.1% | 65.9% |
| 2004 | Math | 11th Grade | % proficient | 74.6% | 74.6% | 70.1% |
| 2005 | Math | 11th Grade | % proficient | 80.3% | 80.3% | 75.5% |
| 2006 | Math | 11th Grade | % proficient | 78.1% | 78.1% | 75.9% |
| 2007 | Math | 11th Grade | % proficient | 82.8% | 82.8% | 73.4% |
| 2008 | Math | 11th Grade | % proficient | 76.0% | 76.0% | 75.4% |
| 2009 | Math | 11th Grade | % proficient | 76.0% | 76.0% | 73.7% |
| 2010 | Math | 11th Grade | % proficient | 76.2% | 76.2% | 75.0% |
| 2011 | Math | 11th Grade | % proficient | 80.3% | 80.3% | 75.2% |
| 2012 | Math | 11th Grade | % proficient | 85.5% | 85.5% | 79.3% |
| 2013 | Math | 11th Grade | % proficient | 86.6% | 86.6% | 79.7% |
| 2007 | Science | 11th Grade | % proficient | 66.0% | 66.0% | 72.7% |
Some data by SchoolDigger.com.
* Lyndhurst High School, Test Performance was rated 4 out of 5 by USA.com. The ranking was calculated based on publically available historical Math and English performance data.