Summary:
ZIP code 99349 has one middle school, Wahluke Junior High, serving 554 students in grades 6–8 in Mattawa, Washington. The school is part of the Wahluke School District. Nearly 95% of students qualify for free or reduced-price lunch, indicating that the school serves an area with very high economic need. The student-teacher ratio is 17.5 to 1, and per-student spending was $19,292 in 2023–2024. Since there is no other middle school in the ZIP code, families cannot compare schools locally and may find the statewide comparisons most useful.
Wahluke Junior High’s strongest area is English language arts. In 2025–2026, 28.28% of students met the state standard in ELA, slightly above the district result of 24.39%. Eighth grade had the school’s strongest ELA performance at 32.66%, while seventh grade was lower at 24.68%. Math achievement was considerably weaker: 16.13% of students were proficient overall, with grade-level results ranging from 14.29% in seventh grade to 18.59% in eighth grade. Science was the most significant concern, with just 15.58% of students proficient compared with 50.95% statewide. In every subject, the school’s results were well below Washington averages.
Families should also know that Wahluke Junior High ranked 477th of 514 Washington schools, placing it in the 7th percentile. It has remained in the bottom 10% statewide for the past three reported years. Results declined modestly from the prior year in ELA and math and more noticeably in science. Overall, the data point to broad academic challenges rather than a problem limited to one subject, with math and science the clearest priorities for improvement. At the same time, ELA performance is a relative strength, and eighth grade generally performed better than sixth or seventh grade. Parents may wish to ask about academic interventions, support for math and science, seventh-grade transition services, attendance, and how the school is measuring improvement over time.
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