Enrollment
64
Washington · 2024-25 NCES data
High school (grades 9-12) · Arlington, WA
Federal NCES profile for Arlington Open Doors, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 20/100.
The verdict
Arlington Open Doors earns 20/100 on the Resource Investment Index on federal resource data.
By Resource Investment Index, Arlington Open Doors ranks #4 of 4 high schools in Arlington, WA.
NCES ID 530024003594 Verify on NCES CCD record →
Enrollment
64
Washington · 2024-25 NCES data
Free-lunch eligible
67.4%
vs 45.0% Washington avg
+50% vs state
Arlington Open Doors is a higher-need, small high school in Arlington, Washington, enrolling 64 students.
Economic need runs somewhat above the state's typical profile, with 67.4% of students eligible for free meals.
Enrollment of 64 puts it in the smaller third of Washington schools by headcount.
Its Resource Investment Index trails 92% of the 2,394 Washington schools with a score on record, one of the lower results on this measure.
Against 69 statewide peers matched on enrollment and economic need, it ranks mid-pack at #44.
Its student body is led by White (74%) and Hispanic or Latino (21%) (diversity index 40/100).
No Advanced Placement courses are reported for this campus in the federal data.
Among Arlington's high schools, it stands alongside Arlington High School (1,650 students): Arlington Open Doors is smaller than that campus by headcount.
Arlington School District also operates Arlington High School (1,650 students) and Eagle Creek Elementary (665 students) alongside Arlington Open Doors.
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
Arlington Open Doors on the metrics families compare, against Washington and U.S. means.
| Metric | This school | vs Washington | Washington avg | U.S. avg |
|---|---|---|---|---|
| Free-lunch eligible | 67.4% | ▲ 50% | 45.0% | 51.7% |
| Enrollment | 64 | top 86% | - | - |
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 74.2% of enrollment.
Simpson diversity index - at 40.3, Arlington Open Doors is less mixed than the Washington school average of 53.3.
District-wide per-pupil expenditure for Arlington School District, which includes Arlington Open Doors.
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 | Lower economic need | No ratio data |
| Eagle Creek Elementary | Larger | Lower economic need | No ratio data |
| Post Middle School | Larger | Lower economic need | No ratio data |
| Kent Prairie Elementary | Larger | Lower economic need | No ratio data |
| Presidents Elementary | Larger | Lower economic need | No ratio data |
Comparisons are relative to Arlington Open Doors's own figures; each column derives from NCES Common Core of Data.
4 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 Arlington Open Doors'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.
Arlington Open Doors has 64 students enrolled. It is a high school in Arlington, WA.
67.4% of students at Arlington Open Doors are eligible for free lunch, compared to the Washington average of 45.0%.
The largest demographic group at Arlington Open Doors is White at 74.2% of enrollment, in Arlington, WA.
Arlington Open Doors has a Resource Investment Index of 20/100 (lower reported resources relative to schools nationally) based on 2 factors: student-teacher ratio. Not a test-score or academic measure (national median ~41/100, see methodology). Limited indicators were available, so the index reflects partial data.
By Resource Investment Index, Arlington Open Doors ranks #4 of 4 high 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 high schools in Arlington on the city page.
Arlington Open Doors earns 20/100 on the Resource Investment Index on federal resource data. 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 Arlington Open Doors, 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.