Enrollment
1,611
Washington · 2024-25 NCES data
High school (grades 9-12) · Bellevue, WA
Interlake Senior High School
Federal NCES profile for Interlake Senior High School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 44/100.
2024-25 NCES dataHigh school (grades 9-12)NCES 530039000072
👥 S:T ratio 23
📚 AP courses 60
🌟 Gifted program 30
🎓 Counselors 36
📋 Attendance 71
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Interlake Senior High School earns 44/100 on the Resource Investment Index, with class sizes larger than 73% of Washington schools. It is also one of the largest schools in Washington.
- #2 of 4
- high schools in Bellevue · Resource Index
- 44
- Resource Index · Typical
- 19.2:1
- large classes for Washington
- 19.2%
- free-lunch eligible
Interlake Senior High School has class sizes larger than 73% of Washington schools. Computed live against every Washington school reporting to NCES.
By Resource Investment Index, Interlake Senior High School ranks #2 of 4 high schools in Bellevue, WA.
School address
District: Bellevue School District · Washington
NCES ID 530039000072 Verify on NCES CCD record →
Teachers (FTE)
84.0
Federal CCD staff survey
Students per teacher
19.2:1
vs 17.6:1 Washington avg
+9% vs state
Free-lunch eligible
19.2%
vs 45.0% Washington avg
-57% vs state
Student-teacher ratio in context
How Interlake Senior High School compares with Washington and U.S. medians
What stands out at Interlake Senior High School
Interlake Senior High School is a lower-poverty, large high school in Bellevue, Washington, enrolling 1,611 students.
Class loads run somewhat heavier than typical: 19.2:1 puts it in the larger third of Washington schools by student-teacher ratio.
Economic need runs somewhat below the state's typical profile, with 19.2% of students eligible for free meals.
By headcount it is one of the larger campuses in Washington, bigger than 97% of state schools at 1,611 students.
Its Resource Investment Index lands in the lower third of 2,394 scored Washington schools.
Against 92 statewide peers matched on enrollment and economic need, it ranks mid-pack at #62.
Its student body is led by Asian (50%) and White (22%) (diversity index 67/100).
On the academic-pipeline side it reports 12 Advanced Placement courses.
Counselor coverage runs a bit thin, about 322 students per counselor, somewhat past the ASCA-recommended 250:1 benchmark.
11.7% of students were chronically absent in the 2021-22 collection, in line with the post-pandemic national range.
Among Bellevue's high schools, it stands alongside Newport Senior High School (1,850 students): Interlake Senior High School is smaller than that campus by headcount and runs leaner classes (19.2:1 vs 21.3:1).
Bellevue School District also operates Newport Senior High School (1,850 students) and Bellevue High School (1,683 students) alongside Interlake Senior 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
How Interlake Senior High School compares
Interlake Senior 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 | 19.2:1 | ▲ 9% | 17.6:1 | 15.7:1 |
| Free-lunch eligible | 19.2% | ▼ 57% | 45.0% | 51.7% |
| Enrollment | 1,611 | top 3% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
19.2:1
Leaner classes than 19% of US schools, heavier class loads than most.
1,611
Bigger than 97% of US schools by enrollment, a large campus nationally.
Equity indicators (what these measure)
Economic need
19.2%
free-lunch eligible
- 57% below the Washington average of 45.0%
Below the 40% Title I threshold, among the lower-need profiles in the state; federal aid targets individual qualifying students rather than schoolwide programs.
Staffing depth
19.2:1
students per teacher
- 9% above state mean
Top 73% in Washington - lower ratio than 27% of state schools
Between 16:1 and 20:1, squarely in the typical U.S. public-school staffing range.
Engagement
11.7%
chronically absent (missed 10%+ of school days)
In the 10-15% range, above the pre-pandemic national baseline but within the broader post-pandemic picture.
Funding equity
$17,860
per pupil, district-wide
- below Washington avg of $19,487
Somewhat above the U.S. public-school average, reflecting higher local or state investment per enrolled student.
Support staff
Counselors5.0 FTE
Per 322 students, the combined health-and-guidance staffing load for this school.
Discipline context
16
in-school suspensions + 1 out-of-school
Suspension rate: 1.0 per 100 students. Combined in-school and out-of-school rate: 1.1 per 100 students. Reported via the Civil Rights Data Collection.
Overview
- Common Core of Data (June 2026): enrollment, staffing, and the student-teacher ratio above.
- Civil Rights Data Collection: discipline counts and program access (AP, gifted, special education).
- F-33 School District Finance Survey: the district-wide per-pupil spending figures below.
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.
Student demographics
Asian 50.0%
White 22.4%
Hispanic or Latino 16.7%
Two or More 6.6%
African American 4.0%
Native Hawaiian / Pacific Islander 0.2%
Largest group: Asian at 50.0% of enrollment.
Student-body diversity index 66.6/100
Simpson diversity index - at 66.6, Interlake Senior High School is more mixed than the Washington school average of 53.3.
Programs
AP courses offered 12
Funding & spending
District-wide per-pupil expenditure for Bellevue School District, which includes Interlake Senior High School.
$17,860
Per student
-8%
vs Washington
Avg $19,487
+8%
vs U.S.
Avg $16,593
Revenue mix
Local 45.6%
State 47.5%
Federal 6.9%
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.
How Interlake Senior High School Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Newport Senior High School | Similar size | Similar economic need | Higher S:T ratio |
| Bellevue High School | Similar size | Similar economic need | Higher S:T ratio |
| Sammamish Senior High | Similar size | Higher economic need | Higher S:T ratio |
| Tyee Middle School | Smaller | Similar economic need | Higher S:T ratio |
| Odle Middle School | Smaller | Similar economic need | Similar S:T ratio |
Comparisons are relative to Interlake Senior High School's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 1,850
- Students per teacher
- 21.3:1
- Resource Index
- 41/100
- Enrollment
- 1,683
- Students per teacher
- 24.4:1
- Resource Index
- 36/100
- Enrollment
- 1,363
- Students per teacher
- 20.7:1
- Resource Index
- 40/100
- Enrollment
- 1,007
- Students per teacher
- 21.9:1
- Resource Index
- 43/100
- Enrollment
- 974
- Students per teacher
- 18.7:1
- Resource Index
- 46/100
Similar high schools in Bellevue
3 comparable high schools (grades 9-12) serving the same city.
Similar high schools statewide
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.
Similar enrollment (~1,611 students)
Similar student-teacher ratio (~19.2:1)
Next steps
Verify locally before acting on Interlake Senior High School's federal record.
- Compare Interlake Senior High School against another school. Compare schools
- Bellevue School District's spending and staffing shape this school. District profile
- Confirm current enrollment and boundaries with the school. Choosing guide
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.
Frequently asked questions about Interlake Senior High School
How many students attend Interlake Senior High School?
Interlake Senior High School has 1,611 students enrolled. It is a high school in Bellevue, WA.
What is the student-teacher ratio at Interlake Senior High School?
The student-teacher ratio at Interlake Senior High School is 19.2:1, which is 9% higher than the Washington average of 17.6:1 and 22% higher than the national average of 15.7:1.
What percentage of students receive free lunch at Interlake Senior High School?
19.2% of students at Interlake Senior High School are eligible for free lunch, compared to the Washington average of 45.0%.
What is the racial and ethnic makeup of Interlake Senior High School?
The largest demographic group at Interlake Senior High School is Asian at 50.0% of enrollment, in Bellevue, WA. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 66.6/100.
What is the Resource Investment Index for Interlake Senior High School?
Interlake Senior 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).
How does Interlake Senior High School rank among high schools in Bellevue?
By Resource Investment Index, Interlake Senior High School ranks #2 of 4 high schools in Bellevue, 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 Bellevue on the city page.
Is Interlake Senior High School a good school?
Interlake Senior High School earns 44/100 on the Resource Investment Index, with class sizes larger than 73% of Washington schools. It is also one of the largest schools in Washington. 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.
What other schools are in Bellevue School District?
Besides Interlake Senior High School, Bellevue School District also operates Newport Senior High School (1,850 students), Bellevue High School (1,683 students), and Sammamish Senior High (1,363 students). See the Bellevue School District district page for the complete list.
Related tools
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.