Plymouth High School, Test Performance
| Year | Test | Grade | Measurement | Score | School District | State Average |
| ECA | ||||||
| 2010 | Algebra I | End of course | % met std | 64% | 77% | 61% |
| 2011 | Algebra I | End of course | % met std | 67.9% | 78.7% | 72.4% |
| 2012 | Algebra I | End of course | % met std | 72.3% | 80.2% | N/A |
| 2010 | Biology I | End of course | % met std | 27% | 27% | 37% |
| 2011 | Biology I | End of course | % met std | 51.9% | 56.3% | 46.9% |
| 2012 | Biology I | End of course | % met std | 30.9% | 42.1% | N/A |
| 2010 | English 10 | End of course | % met std | 74% | 74% | 63% |
| 2011 | English 10 | End of course | % met std | 76% | 76% | 71.9% |
| 2012 | English 10 | End of course | % met std | 83.4% | 83.4% | N/A |
| ISTEP+ | ||||||
| 2005 | English/Language Arts | 10th Grade | % met std | 72% | 72% | 68% |
| 2006 | English/Language Arts | 10th Grade | % met std | 70% | 70% | 68% |
| 2007 | English/Language Arts | 10th Grade | % met std | 74% | 74% | 67% |
| 2008 | English/Language Arts | 10th Grade | % met std | 66% | 66% | 68% |
| 2009 | English/Language Arts | 10th Grade | % met std | 70% | 70% | 67% |
| 2005 | Math | 10th Grade | % met std | 73% | 73% | 64% |
| 2006 | Math | 10th Grade | % met std | 72% | 72% | 64% |
| 2007 | Math | 10th Grade | % met std | 72% | 72% | 65% |
| 2008 | Math | 10th Grade | % met std | 68% | 68% | 66% |
| 2009 | Math | 10th Grade | % met std | 72% | 72% | 65% |
| 2005 | English/Language Arts | 9th Grade | % met std | 70% | 70% | 66% |
| 2006 | English/Language Arts | 9th Grade | % met std | 73% | 73% | 67% |
| 2007 | English/Language Arts | 9th Grade | % met std | 67% | 67% | 68% |
| 2008 | English/Language Arts | 9th Grade | % met std | 67% | 67% | 66% |
| 2005 | Math | 9th Grade | % met std | 77% | 77% | 68% |
| 2006 | Math | 9th Grade | % met std | 77% | 77% | 71% |
| 2007 | Math | 9th Grade | % met std | 73% | 73% | 67% |
| 2008 | Math | 9th Grade | % met std | 75% | 75% | 70% |
Some data by SchoolDigger.com.
* Plymouth 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.