Enrollment
983
Washington · 2024-25 NCES data
Middle school (grades 6-8) · Seattle, WA
Hamilton International Middle School
Federal NCES profile for Hamilton International Middle School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 54/100.
2024-25 NCES dataMiddle school (grades 6-8)NCES 530771001180
👥 S:T ratio 4
🌟 Gifted program 70
🎓 Counselors 45
📋 Attendance 95
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Hamilton International Middle School earns 54/100 on the Resource Investment Index, with class sizes larger than 93% of Washington schools.
- #5 of 9
- middle schools in Seattle · Resource Index
- 54
- Resource Index · Higher
- 24:1
- large classes for Washington
- 8.7%
- free-lunch eligible
Hamilton International Middle School has class sizes larger than 93% of Washington schools. Computed live against every Washington school reporting to NCES.
By Resource Investment Index, Hamilton International Middle School ranks #5 of 9 middle schools in Seattle, WA.
School address
District: Seattle School District No. 1 · Washington
NCES ID 530771001180 Verify on NCES CCD record →
Teachers (FTE)
41.0
Federal CCD staff survey
Students per teacher
24:1
vs 17.6:1 Washington avg
+36% vs state
Free-lunch eligible
8.7%
vs 45.0% Washington avg
-81% vs state
Student-teacher ratio in context
How Hamilton International Middle School compares with Washington and U.S. medians
What stands out at Hamilton International Middle School
Hamilton International Middle School is a lower-poverty, large middle school in Seattle, Washington, enrolling 983 students.
Class loads run heavy: 24:1 is larger than about 93% of Washington schools and 36% above the 17.6:1 state mean, so each teacher carries more students than is typical.
Comparatively few students face economic hardship here, 8.7% free-meal eligibility runs 81% below the Washington average.
By headcount it is one of the larger campuses in Washington, bigger than 93% of state schools at 983 students.
Its Resource Investment Index lands in the upper third of 2,394 scored Washington schools.
Among 116 similarly sized, similarly resourced-need Washington schools statewide, it ranks #11, a top-tier result once campus size and economic need are matched.
Its student body is led by White (55%) and Two or More (20%) (diversity index 63/100).
Counselor coverage runs a bit thin, about 273 students per counselor, somewhat past the ASCA-recommended 250:1 benchmark.
Attendance holds up well here: only 2.0% of students were chronically absent, below the typical post-pandemic national figure.
Among Seattle's middle schools, it stands alongside Jane Addams Middle School (824 students): Hamilton International Middle School is larger than that campus by headcount and runs heavier classes (24:1 vs 17.2:1).
Seattle School District No. 1 also operates Lincoln High School (1,770 students) and Ballard High School (1,697 students) alongside Hamilton International 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
How Hamilton International Middle School compares
Hamilton International 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 | 24:1 | ▲ 36% | 17.6:1 | 15.7:1 |
| Free-lunch eligible | 8.7% | ▼ 81% | 45.0% | 51.7% |
| Enrollment | 983 | top 7% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
24:1
Leaner classes than 6% of US schools, heavier class loads than most.
983
Bigger than 91% of US schools by enrollment, a large campus nationally.
Equity indicators (what these measure)
Economic need
8.7%
free-lunch eligible
- 81% 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
24:1
students per teacher
- 36% above state mean
Top 93% in Washington - lower ratio than 7% of state schools
Above 20:1, running heavier than the typical U.S. public school; staffing is comparatively stretched.
Engagement
2.0%
chronically absent (missed 10%+ of school days)
Below 5%, comfortably under the pre-pandemic national baseline for chronic absenteeism.
Funding equity
$20,430
per pupil, district-wide
- above Washington avg of $19,487
Well above the U.S. public-school average, reflecting substantially higher local or state investment per enrolled student.
Support staff
Counselors3.6 FTE
Per 273 students, the combined health-and-guidance staffing load for this school.
Discipline context
0
in-school suspensions + 1 out-of-school
Suspension rate: 0.0 per 100 students. Combined in-school and out-of-school rate: 0.1 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
White 55.1%
Two or More 19.8%
Hispanic or Latino 12.4%
Asian 9.5%
African American 2.8%
Native Hawaiian / Pacific Islander 0.4%
American Indian / Alaska Native 0.1%
Largest group: White at 55.1% of enrollment.
Student-body diversity index 63.2/100
Simpson diversity index - at 63.2, Hamilton International Middle School is more mixed than the Washington school average of 53.3.
Programs
Gifted & talented Yes
Funding & spending
District-wide per-pupil expenditure for Seattle School District No. 1, which includes Hamilton International Middle School.
$20,430
Per student
+5%
vs Washington
Avg $19,487
+23%
vs U.S.
Avg $16,593
Revenue mix
Local 40.0%
State 50.6%
Federal 9.3%
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 Hamilton International Middle School Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Lincoln High School | Larger | Similar economic need | Similar S:T ratio |
| Ballard High School | Larger | Similar economic need | Similar S:T ratio |
| Roosevelt High School | Larger | Similar economic need | Lower S:T ratio |
| Garfield High School | Larger | Higher economic need | Lower S:T ratio |
| West Seattle High School | Larger | Similar economic need | Similar S:T ratio |
Comparisons are relative to Hamilton International Middle School's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 1,770
- Students per teacher
- 24.6:1
- Resource Index
- 46/100
- Enrollment
- 1,697
- Students per teacher
- 22.6:1
- Resource Index
- 46/100
- Enrollment
- 1,542
- Students per teacher
- 20.6:1
- Resource Index
- 46/100
- Enrollment
- 1,507
- Students per teacher
- 22.2:1
- Resource Index
- 39/100
- Enrollment
- 1,479
- Students per teacher
- 24.6:1
- Resource Index
- 35/100
Similar middle schools in Seattle
6 comparable middle schools (grades 6-8) serving the same city.
Jane Addams Middle School
Standard public school
824 students 17.2:1 students per teacher
Aki Kurose Middle School
Standard public school
817 students 17.4:1 students per teacher
Robert Eagle Staff Middle School
Standard public school
729 students 19.2:1 students per teacher
Cascade Middle School
Standard public school
671 students 15.6:1 students per teacher
Dimmitt Middle School
Standard public school
605 students 16.4:1 students per teacher
Edmonds S. Meany Middle School
Standard public school
504 students 17.4:1 students per teacher
Similar middle 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 (~983 students)
Similar student-teacher ratio (~24:1)
Next steps
Verify locally before acting on Hamilton International Middle School's federal record.
- Compare Hamilton International Middle School against another school. Compare schools
- Seattle School District No. 1'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 Hamilton International Middle School
How many students attend Hamilton International Middle School?
Hamilton International Middle School has 983 students enrolled. It is a middle school in Seattle, WA.
What is the student-teacher ratio at Hamilton International Middle School?
The student-teacher ratio at Hamilton International Middle School is 24:1, which is 36% higher than the Washington average of 17.6:1 and 53% higher than the national average of 15.7:1.
What percentage of students receive free lunch at Hamilton International Middle School?
8.7% of students at Hamilton International Middle School are eligible for free lunch, compared to the Washington average of 45.0%.
What is the racial and ethnic makeup of Hamilton International Middle School?
The largest demographic group at Hamilton International Middle School is White at 55.1% of enrollment, in Seattle, WA. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 63.2/100.
What is the Resource Investment Index for Hamilton International Middle School?
Hamilton International Middle School has a Resource Investment Index of 54/100 (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).
How does Hamilton International Middle School rank among middle schools in Seattle?
By Resource Investment Index, Hamilton International Middle School ranks #5 of 9 middle 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 middle schools in Seattle on the city page.
Is Hamilton International Middle School a good school?
Hamilton International Middle School earns 54/100 on the Resource Investment Index, with class sizes larger than 93% 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.
What other schools are in Seattle School District No. 1?
Besides Hamilton International Middle 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.
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.