Enrollment
390
Washington · 2024-25 NCES data
High school (grades 9-12) · Langley, WA
Federal NCES profile for South Whidbey High School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 44/100.
The verdict
South Whidbey High School earns 44/100 on the Resource Investment Index, with class sizes near the Washington median.
South Whidbey High School has class sizes near the Washington median. Computed live against every Washington school reporting to NCES.
By Resource Investment Index, South Whidbey High School ranks #1 of 4 public schools in Langley, WA.
NCES ID 530819001878 Verify on NCES CCD record →
Enrollment
390
Washington · 2024-25 NCES data
Teachers (FTE)
22.0
Federal CCD staff survey
Students per teacher
17.7:1
vs 17.6:1 Washington avg
+1% vs state
Free-lunch eligible
20.8%
vs 45.0% Washington avg
-54% vs state
How South Whidbey High School compares with Washington and U.S. medians
Slightly above state median
17.7:1 - 0.1 above the Washington state median of 17.6:1, indicating larger average class loads than typical schools in the state.
South Whidbey High School is a mid-sized high school in Langley, Washington, enrolling 390 students.
Class loads run somewhat heavier than typical: 17.7:1 puts it in the larger third of Washington schools by student-teacher ratio.
Economic need runs somewhat below the state's typical profile, with 20.8% of students eligible for free meals.
With 390 students, its enrollment sits close to the Washington median campus size.
Its Resource Investment Index sits near the middle of the pack among 2,394 scored Washington schools.
Against 375 statewide peers matched on enrollment and economic need, it ranks mid-pack at #215.
Its student body is predominantly White (81% of enrollment) (diversity index 34/100).
On the academic-pipeline side it reports 7 Advanced Placement courses.
Counselor coverage is strong, about 195 students per counselor, inside the American School Counselor Association's recommended 250:1.
Chronic absenteeism is elevated: 30.3% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
Among Langley's high schools, it stands alongside South Whidbey Academy (42 students): South Whidbey High School is larger than that campus by headcount.
South Whidbey School District also operates South Whidbey Elementary (485 students) and South Whidbey Middle (290 students) alongside South Whidbey 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
South Whidbey 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 | 17.7:1 | ▲ 1% | 17.6:1 | 15.7:1 |
| Free-lunch eligible | 20.8% | ▼ 54% | 45.0% | 51.7% |
| Enrollment | 390 | top 49% | - | - |
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 80.7% of enrollment.
Simpson diversity index - at 33.9, South Whidbey High School is less mixed than the Washington school average of 53.3.
District-wide per-pupil expenditure for South Whidbey School District, which includes South Whidbey 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 |
|---|---|---|---|
| South Whidbey Elementary | Similar size | Similar economic need | Lower S:T ratio |
| South Whidbey Middle | Smaller | Similar economic need | Higher S:T ratio |
| South Whidbey Academy | Smaller | Higher economic need | No ratio data |
| South Whidbey Special Services | Smaller | No free-lunch data | No ratio data |
Comparisons are relative to South Whidbey High School's own figures; each column derives from NCES Common Core of Data.
1 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 South Whidbey 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.
South Whidbey High School has 390 students enrolled. It is a high school in Langley, WA.
The student-teacher ratio at South Whidbey High School is 17.7:1, which is 1% higher than the Washington average of 17.6:1 and 13% higher than the national average of 15.7:1.
20.8% of students at South Whidbey High School are eligible for free lunch, compared to the Washington average of 45.0%.
The largest demographic group at South Whidbey High School is White at 80.7% of enrollment, in Langley, WA.
South Whidbey High School has a Resource Investment Index of 44/100 (typical reported resources relative to schools nationally) based on 5 factors: student-teacher ratio, AP course offerings, counselor availability, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
By Resource Investment Index, South Whidbey High School ranks #1 of 4 public schools in Langley, WA. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all public schools in Langley on the city page.
South Whidbey High School earns 44/100 on the Resource Investment Index, with class sizes near the Washington median. 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 South Whidbey High School, South Whidbey School District also operates South Whidbey Elementary (485 students), South Whidbey Middle (290 students), and South Whidbey Academy (42 students). See the South Whidbey 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, “South Whidbey High School, Langley 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/south-whidbey-high-school-wa
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