Enrollment
788
Washington · 2024-25 NCES data
Middle school (grades 6-8) · Redmond, WA
Federal NCES profile for Timberline Middle School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 50/100.
The verdict
Timberline Middle School earns 50/100 on the Resource Investment Index, with class sizes larger than 85% of Washington schools.
Timberline Middle School has class sizes larger than 85% of Washington schools. Computed live against every Washington school reporting to NCES.
By Resource Investment Index, Timberline Middle School ranks #2 of 5 middle schools in Redmond, WA.
NCES ID 530423003708 Verify on NCES CCD record →
Enrollment
788
Washington · 2024-25 NCES data
Teachers (FTE)
37.0
Federal CCD staff survey
Students per teacher
21.3:1
vs 17.6:1 Washington avg
+21% vs state
Free-lunch eligible
8.2%
vs 45.0% Washington avg
-82% vs state
How Timberline Middle School compares with Washington and U.S. medians
Larger classes than state median
21.3:1 - 3.7 above the Washington state median of 17.6:1, indicating larger average class loads than typical schools in the state.
Timberline Middle School is a lower-poverty, large middle school in Redmond, Washington, enrolling 788 students.
Class loads run somewhat heavier than typical: 21.3:1 puts it in the larger third of Washington schools by student-teacher ratio.
Comparatively few students face economic hardship here, 8.2% free-meal eligibility runs 82% below the Washington average.
Enrollment of 788 puts it in the larger third of Washington schools by headcount.
Its Resource Investment Index lands in the upper third of 2,394 scored Washington schools.
Against 184 statewide peers matched on enrollment and economic need, it ranks in the upper tier at #42.
Its student body is led by Asian (53%) and White (29%) (diversity index 62/100).
Counselor coverage runs a bit thin, about 315 students per counselor, somewhat past the ASCA-recommended 250:1 benchmark.
Attendance holds up well here: only 8.6% of students were chronically absent, below the typical post-pandemic national figure.
Among Redmond's middle schools, it stands alongside Redmond Middle School (1,009 students): Timberline Middle School is smaller than that campus by headcount and runs heavier classes (21.3:1 vs 20.6:1).
Lake Washington School District also operates Eastlake High School (2,481 students) and Redmond High School (2,304 students) alongside Timberline Middle 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
Timberline Middle 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 | 21.3:1 | ▲ 21% | 17.6:1 | 15.7:1 |
| Free-lunch eligible | 8.2% | ▼ 82% | 45.0% | 51.7% |
| Enrollment | 788 | top 11% | - | - |
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: Asian at 53.0% of enrollment.
Simpson diversity index - at 62.0, Timberline Middle School is more mixed than the Washington school average of 53.3.
District-wide per-pupil expenditure for Lake Washington School District, which includes Timberline Middle 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 |
|---|---|---|---|
| Eastlake High School | Larger | Similar economic need | Similar S:T ratio |
| Redmond High School | Larger | Similar economic need | Similar S:T ratio |
| Lake Washington High School | Larger | Similar economic need | Similar S:T ratio |
| Juanita High School | Larger | Higher economic need | Similar S:T ratio |
| Inglewood Middle School | Larger | Similar economic need | Similar S:T ratio |
Comparisons are relative to Timberline Middle School's own figures; each column derives from NCES Common Core of Data.
4 comparable middle schools (grades 6-8) 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 Timberline Middle 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.
Timberline Middle School has 788 students enrolled. It is a middle school in Redmond, WA.
The student-teacher ratio at Timberline Middle School is 21.3:1, which is 21% higher than the Washington average of 17.6:1 and 36% higher than the national average of 15.7:1.
8.2% of students at Timberline Middle School are eligible for free lunch, compared to the Washington average of 45.0%.
The largest demographic group at Timberline Middle School is Asian at 53.0% of enrollment, in Redmond, WA. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 62.0/100.
Timberline Middle School has a Resource Investment Index of 50/100 (higher reported resources relative to schools nationally) based on 4 factors: student-teacher ratio, counselor availability, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
By Resource Investment Index, Timberline Middle School ranks #2 of 5 middle schools in Redmond, WA. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all middle schools in Redmond on the city page.
Timberline Middle School earns 50/100 on the Resource Investment Index, with class sizes larger than 85% 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 Timberline Middle School, Lake Washington School District also operates Eastlake High School (2,481 students), Redmond High School (2,304 students), and Lake Washington High School (2,081 students). See the Lake Washington 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, “Timberline Middle School, Redmond 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/timberline-middle-school-wa
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