Prosser High School
1500 Paterson Rd., Prosser, WA 99350 Map
Math (met standard)
33%
−3
state 35% · 2025-26
English (met standard)
61%
−3
state 64% · 2025-26
Science (met standard)
41%
−7
state 49% · 2025-26
Low income
62%
free or reduced-price lunch
Students
877
2024-25
Students per teacher
19.6
2024-25
Test score trends
Share of students who met or exceeded the state standard each year.
Latest results by grade
| Grade | Math | English | Science |
|---|---|---|---|
| Grade 10 | 33% state 35% · 2025-26 | 61% state 64% · 2025-26 | — |
| Grade 11 | — | — | 41% state 49% · 2025-26 |
| All grades | 33% state 35% · 2025-26 | 61% state 64% · 2025-26 | 41% state 49% · 2025-26 |
Results by year (all grades)
| School year | Math | English | Science |
|---|---|---|---|
| 2025-26 | 33% state 35% | 61% state 64% | 41% state 49% |
| 2024-25 | 25% state 34% | 57% state 65% | 37% state 51% |
| 2023-24 | 15% state 33% | 58% state 66% | 38% state 50% |
| 2022-23 | 17% state 33% | 54% state 66% | 39% state 51% |
| 2021-22 | 17% state 35% | 45% state 69% | 45% state 54% |
| 2018-19 | 35% state 43% | 69% state 73% | 37% state 50% |
| 2017-18 | 34% state 43% | 70% state 73% | 42% state 46% |
Students
Race and ethnicity, 2024-25
- Asian 1%
- White 30%
- Hispanic 66%
- Black 0%
- Two or more 2%
- Other 1%
Year-by-year history is loaded from the NCES Common Core of Data (2017-18 onward).