Plymouth Regional High School, Test Performance
| Year | Test | Grade | Measurement | Score | School District | State Average |
| NECAP | ||||||
| 2009 | Mathematics | 11th Grade | % met std | 26% | 26% | 32% |
| 2010 | Mathematics | 11th Grade | % met std | 27% | 27% | 33% |
| 2011 | Mathematics | 11th Grade | % met std | 37% | 36% | 36% |
| 2012 | Mathematics | 11th Grade | % met std | 42% | 42% | 36% |
| 2013 | Mathematics | 11th Grade | % met std | 45% | 45% | 37% |
| 2009 | Reading | 11th Grade | % met std | 76% | 76% | 72% |
| 2010 | Reading | 11th Grade | % met std | 79% | 79% | 73% |
| 2011 | Reading | 11th Grade | % met std | 73% | 73% | 74% |
| 2012 | Reading | 11th Grade | % met std | 80% | 80% | 77% |
| 2013 | Reading | 11th Grade | % met std | 87% | 87% | 77% |
| 2009 | Writing | 11th Grade | % met std | 46% | 44% | 39% |
| 2010 | Writing | 11th Grade | % met std | 71% | 71% | 50% |
| 2011 | Writing | 11th Grade | % met std | 49% | 49% | 45% |
| 2012 | Writing | 11th Grade | % met std | 41% | 41% | 46% |
| 2013 | Writing | 11th Grade | % met std | 58% | 58% | 41% |
Some data by SchoolDigger.com.