Enrollment
214
Washington · 2024-25 NCES data
High school (grades 9-12) · Seattle, WA
Federal NCES profile for Summit Public School: Sierra, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 40/100.
The verdict
Summit Public School: Sierra earns 40/100 on the Resource Investment Index, with class sizes smaller than 86% of Washington schools.
Summit Public School: Sierra has class sizes smaller than 86% of Washington schools. Computed live against every Washington school reporting to NCES.
By Resource Investment Index, Summit Public School: Sierra ranks #4 of 6 high schools in Seattle, WA.
NCES ID 530033403510 Verify on NCES CCD record →
Enrollment
214
Washington · 2024-25 NCES data
Teachers (FTE)
17.0
Federal CCD staff survey
Students per teacher
12.6:1
vs 17.6:1 Washington avg
-28% vs state
Free-lunch eligible
29.4%
vs 45.0% Washington avg
-35% vs state
How Summit Public School: Sierra compares with Washington and U.S. medians
Summit Public School: Sierra is a mid-sized charter high school in Seattle, Washington, enrolling 214 students.
Classes run notably small here: at 12.6:1, Summit Public School: Sierra is leaner than roughly 86% of Washington schools and 28% under the state's 17.6:1 norm, more adult attention per pupil than most peers.
Economic need runs somewhat below the state's typical profile, with 29.4% of students eligible for free meals.
Enrollment of 214 puts it in the smaller third of Washington schools by headcount.
Its Resource Investment Index lands in the lower third of 2,394 scored Washington schools.
Among 128 similarly sized, similarly resourced-need Washington schools statewide, it ranks #98, in the lower tier once campus size and economic need are matched.
Its student body is led by White (43%) and African American (27%) (diversity index 71/100).
On the academic-pipeline side it reports 8 Advanced Placement courses.
Chronic absenteeism is elevated: 46.7% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
Among Seattle's high schools, it stands alongside Lincoln High School (1,770 students): Summit Public School: Sierra is smaller than that campus by headcount and runs leaner classes (12.6:1 vs 24.6:1).
Summit Public School: Sierra is a single-school charter district, so Summit Public School: Sierra operates independently rather than alongside district-mates.
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
Summit Public School: Sierra on the metrics families compare, against Washington and U.S. means.
| Metric | This school | vs Washington | Washington avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 12.6:1 | ▼ 28% | 17.6:1 | 15.7:1 |
| Free-lunch eligible | 29.4% | ▼ 35% | 45.0% | 51.7% |
| Enrollment | 214 | top 72% | - | - |
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 42.5% of enrollment.
Simpson diversity index - at 71.0, Summit Public School: Sierra is more mixed than the Washington school average of 53.3.
District-wide per-pupil expenditure for Summit Public School: Sierra, which includes Summit Public School: Sierra.
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.
5 comparable high schools (grades 9-12) 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 Summit Public School: Sierra'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.
Summit Public School: Sierra has 214 students enrolled. It is a high school in Seattle, WA.
The student-teacher ratio at Summit Public School: Sierra is 12.6:1, which is 28% lower than the Washington average of 17.6:1 and 20% lower than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
29.4% of students at Summit Public School: Sierra are eligible for free lunch, compared to the Washington average of 45.0%.
The largest demographic group at Summit Public School: Sierra is White at 42.5% of enrollment, in Seattle, WA. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 71.0/100.
Summit Public School: Sierra has a Resource Investment Index of 40/100 (typical reported resources relative to schools nationally) based on 4 factors: student-teacher ratio, AP course offerings, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
By Resource Investment Index, Summit Public School: Sierra ranks #4 of 6 high schools in Seattle, WA. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all high schools in Seattle on the city page.
Summit Public School: Sierra earns 40/100 on the Resource Investment Index, with class sizes smaller than 86% 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.
None; Summit Public School: Sierra is a single-school charter district, and Summit Public School: Sierra is its only campus.
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.