Summary:
Zip code 98648 has one middle school, Wind River Middle School, a small grades 7–8 school in Carson serving 186 students in the Stevenson-Carson School District. The school has about 93 students per grade if enrollment is evenly divided, a student-teacher ratio of 19.7 to 1, and a 2024–25 free-or-reduced-price lunch eligibility rate of 53.23%. Because it is the only middle school in the ZIP code, there are no local school-to-school comparisons; the most useful benchmarks are the district and Washington averages.
In 2025–26, Wind River’s math performance was essentially the same as the district’s: 28.97% of students were proficient, compared with 28.79% districtwide. English language arts proficiency was 38.53%, slightly below the district’s 39.82%, while science was the clearest concern at 35.42%, nearly 10 percentage points below the district. Compared with Washington overall, the school trailed in every subject by roughly 14 to 16 points. Grade-level results show an especially large difference in ELA: 46.03% of 7th graders were proficient, compared with 28.26% of 8th graders. Math results were more consistent, at 31.15% in 7th grade and 26.09% in 8th grade. These results suggest that families may want to ask about support for 8th-grade literacy and science instruction.
Performance declined in all three tested subjects from 2024–25 to 2025–26. ELA fell 7.8 percentage points, science declined 7 points, and math decreased 2.67 points. The school’s ranking also moved from the 61st percentile in 2023–24 to the 28th percentile in 2025–26, while its rating fell from three stars to one. Since enrollment is relatively small, changes in individual student groups or grade cohorts can noticeably affect yearly percentages, so families should consider multiple years of results rather than one score alone. Wind River’s strongest relative area is math, while 8th-grade ELA and science are the most important academic areas to investigate.
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