Enrollment
576
Washington · 2024-25 NCES data
Middle school (grades 6-8) · Arlington, WA
Federal NCES profile for Haller Middle School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 40/100.
The verdict
Haller Middle School earns 40/100 on the Resource Investment Index, with class sizes larger than 85% of Washington schools.
Haller Middle School has class sizes larger than 85% of Washington schools. Computed live against every Washington school reporting to NCES.
By Resource Investment Index, Haller Middle School ranks #3 of 12 public schools in Arlington, WA.
NCES ID 530024003008 Verify on NCES CCD record →
Enrollment
576
Washington · 2024-25 NCES data
Teachers (FTE)
27.0
Federal CCD staff survey
Students per teacher
21.3:1
vs 17.6:1 Washington avg
+21% vs state
Free-lunch eligible
29.9%
vs 45.0% Washington avg
-34% vs state
How Haller Middle School compares with Washington and U.S. medians
Larger classes than state median
21.3:1 - 3.7 above the Washington state median of 17.6:1, indicating larger average class loads than typical schools in the state.
Haller Middle School is a mid-sized middle school in Arlington, Washington, enrolling 576 students.
Class loads run somewhat heavier than typical: 21.3:1 puts it in the larger third of Washington schools by student-teacher ratio.
Economic need runs somewhat below the state's typical profile, with 29.9% of students eligible for free meals.
Enrollment of 576 puts it in the larger third of Washington schools by headcount.
Its Resource Investment Index lands in the lower third of 2,394 scored Washington schools.
Among 495 similarly sized, similarly resourced-need Washington schools statewide, it ranks #362, in the lower tier once campus size and economic need are matched.
Its student body is led by White (64%) and Hispanic or Latino (21%) (diversity index 53/100).
Counselor coverage runs a bit thin, about 305 students per counselor, somewhat past the ASCA-recommended 250:1 benchmark.
Chronic absenteeism is elevated: 25.2% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
The federal civil-rights collection also records 1 expulsion at this campus for 2021-22.
Among Arlington's middle schools, it stands alongside Post Middle School (645 students): Haller Middle School is smaller than that campus by headcount and runs heavier classes (21.3:1 vs 20.2:1).
Arlington School District also operates Arlington High School (1,650 students) and Eagle Creek Elementary (665 students) alongside Haller 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
Haller 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 | 21.3:1 | ▲ 21% | 17.6:1 | 15.7:1 |
| Free-lunch eligible | 29.9% | ▼ 34% | 45.0% | 51.7% |
| Enrollment | 576 | top 23% | - | - |
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 64.2% of enrollment.
Simpson diversity index - at 53.3, Haller Middle School is about as mixed as the Washington school average of 53.3.
District-wide per-pupil expenditure for Arlington School District, which includes Haller Middle 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 |
|---|---|---|---|
| Arlington High School | Larger | Similar economic need | Similar S:T ratio |
| Eagle Creek Elementary | Similar size | Similar economic need | Lower S:T ratio |
| Post Middle School | Similar size | Similar economic need | Similar S:T ratio |
| Kent Prairie Elementary | Similar size | Similar economic need | Lower S:T ratio |
| Presidents Elementary | Similar size | Similar economic need | Lower S:T ratio |
Comparisons are relative to Haller Middle School's own figures; each column derives from NCES Common Core of Data.
1 comparable middle schools (grades 6-8) 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 Haller Middle 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.
Haller Middle School has 576 students enrolled. It is a middle school in Arlington, WA.
The student-teacher ratio at Haller Middle School is 21.3:1, which is 21% higher than the Washington average of 17.6:1 and 36% higher than the national average of 15.7:1.
29.9% of students at Haller Middle School are eligible for free lunch, compared to the Washington average of 45.0%.
The largest demographic group at Haller Middle School is White at 64.2% of enrollment, in Arlington, WA. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 53.3/100.
Haller Middle School has a Resource Investment Index of 40/100 (typical 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).
By Resource Investment Index, Haller Middle School ranks #3 of 12 public schools in Arlington, 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 Arlington on the city page.
Haller Middle School earns 40/100 on the Resource Investment Index, with class sizes larger than 85% 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 Haller Middle School, Arlington School District also operates Arlington High School (1,650 students), Eagle Creek Elementary (665 students), and Post Middle School (645 students). See the Arlington 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.
Published by
PlainSchools Editorial
Independent public-data reference that compiles, verifies, and contextualizes official datasets. We do not accept compensation from entities we cover, and every dataset cites its originating public source.
Last updated:
PlainSchools, “Haller Middle School, Arlington 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/haller-middle-school-wa
You are welcome to quote these figures with attribution to PlainSchools and the underlying source. The URL above is stable.