Mossyrock Jr./Sr. High School

Mossyrock Jr./Sr. High School, a compact 9-12 campus in MOSSYROCK, Washington, operated by Mossyrock School District, educates 281 students, covering grades 7 through 12. Enrollment runs roughly 51% smaller than the state mean of about 573.

Within Mossyrock School District, which oversees 3 schools and 644 students, Mossyrock Jr./Sr. High School is one campus in the system.

In terms of who attends, Mossyrock Jr./Sr. High School logs that the largest single group is White, at 63% of enrollment. The remainder looks like 31% Hispanic, 4% multiracial. The wider county runs roughly 82% White, putting the school's mix noticeably less White than the area baseline.

In terms of school funding signals, On paper, Mossyrock Jr./Sr. High School has 19 full-time-equivalent teachers, translating to a class-load average of around 14.8:1. That figure is tighter than the state norm's 21.6:1 average. About 62% of enrolled students meet the income threshold for free or reduced-price lunch, which schools and policymakers use as a rough income-mix signal.

After controlling for student poverty, Mossyrock Jr./Sr. High School performs roughly as the BeatsExpectations model predicts for a school with this FRL share. The predicted value is around 38.7%, the actual is 35.7%, a residual of -2.9 points.

Around the school, community-level numbers for Lewis County indicate the typical household earns roughly $74,796 per year, roughly 22% of adults have completed at least a four-year degree, and the poverty rate sits near 8%. Across Lewis County's 45 public schools (combined enrollment of about 12,548 students), Mossyrock Jr./Sr. High School is one campus in the mix.

Mossyrock Elementary School is the nearest neighboring public school, about 0.1 miles from this campus. Within five miles, there are 2 other public schools. On composite proficiency, Mossyrock Jr./Sr. High School comes 7th of 8 in the immediate cluster, beneath the nearby-schools average of 42.3%.

Geographically, the school is in a low-density area.

Trend over the last 7 years. Over the past 7-year window, the student count expanded 27%: 222 students in 2018 compared to 281 in 2025. Hispanic enrollment moved from 26% to 31% across the same window. The student-to-teacher ratio pulled in from 17.6:1 in 2018 to 14.8:1 today.

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