Enrollment
268
Washington · 2024-25 NCES data
Other / mixed grade configuration · Seattle, WA
Federal NCES profile for Concord International School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 63/100.
The verdict
Concord International School earns 63/100 on the Resource Investment Index, with class sizes smaller than 94% of Washington schools.
Concord International School has class sizes smaller than 94% of Washington schools. Computed live against every Washington school reporting to NCES.
By Resource Investment Index, Concord International School ranks #9 of 37 schools in Seattle, WA.
NCES ID 530771001154 Verify on NCES CCD record →
Enrollment
268
Washington · 2024-25 NCES data
Teachers (FTE)
25.0
Federal CCD staff survey
Students per teacher
10.7:1
vs 17.6:1 Washington avg
-39% vs state
Free-lunch eligible
63.7%
vs 45.0% Washington avg
+42% vs state
How Concord International School compares with Washington and U.S. medians
Smaller classes than state median
10.7:1 - 6.9 below the Washington state median of 17.6:1, indicating smaller average class loads than typical schools in the state.
Concord International School is a higher-need, mid-sized combined-grade school in Seattle, Washington, enrolling 268 students.
Classes run notably small here: at 10.7:1, Concord International School is leaner than roughly 94% of Washington schools and 39% under the state's 17.6:1 norm, more adult attention per pupil than most peers.
Economic need runs somewhat above the state's typical profile, with 63.7% of students eligible for free meals.
Enrollment of 268 puts it in the smaller third of Washington schools by headcount.
Its Resource Investment Index outscores 94% of the 2,394 Washington schools with a score on record, a top-tier result on this measure.
Among 246 similarly sized, similarly resourced-need Washington schools statewide, it ranks #9, a top-tier result once campus size and economic need are matched.
Its student body is led by Hispanic or Latino (60%) and White (14%) (diversity index 59/100).
15.3% of students were chronically absent in the 2021-22 collection, in line with the post-pandemic national range.
Among Seattle's public schools, it stands alongside Summit Public School: Atlas (566 students): Concord International School is smaller than that campus by headcount and runs leaner classes (10.7:1 vs 18.9:1).
Seattle School District No. 1 also operates Lincoln High School (1,770 students) and Ballard High School (1,697 students) alongside Concord International 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
Concord International 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 | 10.7:1 | ▼ 39% | 17.6:1 | 15.7:1 |
| Free-lunch eligible | 63.7% | ▲ 42% | 45.0% | 51.7% |
| Enrollment | 268 | top 68% | - | - |
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: Hispanic or Latino at 60.4% of enrollment.
Simpson diversity index - at 59.4, Concord International School is more mixed than the Washington school average of 53.3.
District-wide per-pupil expenditure for Seattle School District No. 1, which includes Concord International 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 |
|---|---|---|---|
| Lincoln High School | Larger | Lower economic need | Higher S:T ratio |
| Ballard High School | Larger | Lower economic need | Higher S:T ratio |
| Roosevelt High School | Larger | Lower economic need | Higher S:T ratio |
| Garfield High School | Larger | Lower economic need | Higher S:T ratio |
| West Seattle High School | Larger | Lower economic need | Higher S:T ratio |
Comparisons are relative to Concord International School's own figures; each column derives from NCES Common Core of Data.
6 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 Concord International 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.
Concord International School has 268 students enrolled. It is a public school in Seattle, WA.
The student-teacher ratio at Concord International School is 10.7:1, which is 39% lower than the Washington average of 17.6:1 and 32% lower than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
63.7% of students at Concord International School are eligible for free lunch, compared to the Washington average of 45.0%.
The largest demographic group at Concord International School is Hispanic or Latino at 60.4% of enrollment, in Seattle, WA. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 59.4/100.
Concord International School has a Resource Investment Index of 63/100 (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).
By Resource Investment Index, Concord International School ranks #9 of 37 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 schools in Seattle on the city page.
Concord International School earns 63/100 on the Resource Investment Index, with class sizes smaller than 94% 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 Concord International School, Seattle School District No. 1 also operates Lincoln High School (1,770 students), Ballard High School (1,697 students), and Roosevelt High School (1,542 students). See the Seattle School District No. 1 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, “Concord International School, Seattle 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/concord-international-school-wa
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