Watertown High School, Test Performance
| Year | Test | Grade | Measurement | Score | School District | State Average |
| TCAP | ||||||
| 2010 | Algebra I | End of course | % met std | 29.8% | 48.9% | N/A |
| 2011 | Algebra I | End of course | % met std | 33.3% | 55.7% | 47% |
| 2012 | Algebra I | End of course | % met std | 66% | 63.2% | 55.3% |
| 2010 | English II | End of course | % met std | 56.7% | 67.4% | N/A |
| 2011 | English II | End of course | % met std | 68.3% | 69.7% | 58% |
| 2012 | English II | End of course | % met std | 54.4% | 70.5% | 60.7% |
Some data by SchoolDigger.com.