Moses Lake High School serves about 1,979 students in grades 9–12 as the comprehensive high school for the Moses Lake School District in Grant County. The student body is roughly 52% Hispanic and 41% White, reflecting the Columbia Basin agricultural region's demographics. The school posts an 85% four-year graduation rate, slightly above the WA state average, with AP participation around 19%.
In August 2025, Moses Lake High School was named one of just 42 schools statewide as a 'School on the Rise' by the Association of Washington School Principals and Association of Washington Student Leaders, recognizing measurable gains in school culture and student outcomes. The school is also recognized in PolarisList's Washington HPM-placement rankings.
Source: WA ERDC Graduate Outcomes.
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