Enrollment
281
Washington · 2024-25 NCES data
Other / mixed grade configuration · Mossyrock, WA
Federal NCES profile for Mossyrock Jr./Sr. High School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 54/100.
The verdict
Mossyrock Jr./Sr. High School earns 54/100 on the Resource Investment Index, with class sizes larger than 79% of Washington schools.
Mossyrock Jr./Sr. High School has class sizes larger than 79% of Washington schools. Computed live against every Washington school reporting to NCES.
NCES ID 530525000796 Verify on NCES CCD record →
Enrollment
281
Washington · 2024-25 NCES data
Teachers (FTE)
14.0
Federal CCD staff survey
Students per teacher
20.1:1
vs 17.6:1 Washington avg
+14% vs state
Free-lunch eligible
57.5%
vs 45.0% Washington avg
+28% vs state
How Mossyrock Jr./Sr. High School compares with Washington and U.S. medians
Slightly above state median
20.1:1 - 2.5 above the Washington state median of 17.6:1, indicating larger average class loads than typical schools in the state.
Mossyrock Jr./Sr. High School is a higher-need, mid-sized combined-grade school in Mossyrock, Washington, enrolling 281 students.
Class loads run somewhat heavier than typical: 20.1:1 puts it in the larger third of Washington schools by student-teacher ratio.
Economic need runs somewhat above the state's typical profile, with 57.5% of students eligible for free meals.
Enrollment of 281 puts it in the smaller third of Washington schools by headcount.
Its Resource Investment Index lands in the upper third of 2,394 scored Washington schools.
Against 289 statewide peers matched on enrollment and economic need, it ranks in the upper tier at #71.
Its student body is led by White (63%) and Hispanic or Latino (31%) (diversity index 50/100).
10.7% of students were chronically absent in the 2021-22 collection, in line with the post-pandemic national range.
The surrounding Mossyrock School District spends $15,422 per pupil, 21% below the Washington average, a leaner-resourced district than most.
Among Mossyrock's public schools, it stands alongside Mossyrock Academy (16 students): Mossyrock Jr./Sr. High School is larger than that campus by headcount and runs heavier classes (20.1:1 vs 16:1).
Mossyrock School District also operates Mossyrock Elementary School (347 students) and Mossyrock Academy (16 students) alongside Mossyrock Jr./Sr. High School.
Sourced from NCES CCD, CRDC, and F-33 (federal records, not a quality verdict). How we source and compute this.
Source: National Center for Education Statistics Common Core of Data + CRDC + F-33 · 2024-25
Mossyrock Jr./Sr. High School on the metrics families compare, against Washington and U.S. means.
| Metric | This school | vs Washington | Washington avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 20.1:1 | ▲ 14% | 17.6:1 | 15.7:1 |
| Free-lunch eligible | 57.5% | ▲ 28% | 45.0% | 51.7% |
| Enrollment | 281 | top 66% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
Three separate federal collections, each on its own reporting cadence - which is why this school's numbers line up on a consistent basis against every other school and state on this site, rather than mixing figures pulled from different survey years.
Largest group: White at 63.3% of enrollment.
Simpson diversity index - at 50.4, Mossyrock Jr./Sr. High School is less mixed than the Washington school average of 53.3.
District-wide per-pupil expenditure for Mossyrock School District, which includes Mossyrock Jr./Sr. High School.
Source: NCES F-33 School District Finance Survey District-level finance · FY 2021-22 Per-pupil expenditure reflects the district-wide average. Individual school budgets are not reported at the federal level.
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Mossyrock Elementary School | Similar size | Similar economic need | Similar S:T ratio |
| Mossyrock Academy | Smaller | Higher economic need | Lower S:T ratio |
Comparisons are relative to Mossyrock Jr./Sr. High School's own figures; each column derives from NCES Common Core of Data.
1 comparable other schools (grades Mixed) serving the same city.
Matched by enrollment size and by staffing ratio across all of Washington, not just this city - a different peer set than the local comparisons above.
Next steps
Verify locally before acting on Mossyrock Jr./Sr. High School's federal record.
Federal record (CCD 2024-25, CRDC 2021-22) - PlainSchools assigns no subjective rating; the composite quality score is a transparent, reproducible index computed from this cited federal data.
Mossyrock Jr./Sr. High School has 281 students enrolled. It is a public school in Mossyrock, WA.
The student-teacher ratio at Mossyrock Jr./Sr. High School is 20.1:1, which is 14% higher than the Washington average of 17.6:1 and 28% higher than the national average of 15.7:1.
57.5% of students at Mossyrock Jr./Sr. High School are eligible for free lunch, compared to the Washington average of 45.0%.
The largest demographic group at Mossyrock Jr./Sr. High School is White at 63.3% of enrollment, in Mossyrock, WA. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 50.4/100.
Mossyrock Jr./Sr. High School has a Resource Investment Index of 54/100 (higher reported resources relative to schools nationally) based on 3 factors: student-teacher ratio, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
Mossyrock Jr./Sr. High School earns 54/100 on the Resource Investment Index, with class sizes larger than 79% of Washington schools. This is a resource snapshot, not an academic rating; see the Resource Investment Index question above for what the number does and doesn't measure.
Besides Mossyrock Jr./Sr. High School, Mossyrock School District also operates Mossyrock Elementary School (347 students) and Mossyrock Academy (16 students). See the Mossyrock School District district page for the complete list.
Every figure on PlainSchools is rendered directly from the source NCES, CRDC and F-33 federal records, no number is typed in by an editor. Each school's figures reflect its most recent NCES/CRDC submission on file. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of June 2026.
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PlainSchools, “Mossyrock Jr./Sr. High School, Mossyrock WA.” Compiled from NCES Common Core of Data, Civil Rights Data Collection, and the NCES F-33 finance survey; data as of June 2026. https://plainschools.com/schools/mossyrock-jrsr-high-school-wa/
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