Enrollment
528
Virginia · 2024-25 NCES data
Other / mixed grade configuration · Arlington, VA
Federal NCES profile for Montessori Public School of Arlington, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 52/100.
The verdict
Montessori Public School of Arlington earns 52/100 on the Resource Investment Index, with class sizes larger than 87% of Virginia schools. It is also more racially and ethnically mixed than most Virginia schools.
Montessori Public School of Arlington has class sizes larger than 87% of Virginia schools. Computed live against every Virginia school reporting to NCES.
By Resource Investment Index, Montessori Public School of Arlington ranks #25 of 26 schools in Arlington, VA.
NCES ID 510027003063 Verify on NCES CCD record →
Enrollment
528
Virginia · 2024-25 NCES data
Teachers (FTE)
32.0
Federal CCD staff survey
Students per teacher
16.5:1
vs 13.9:1 Virginia avg
+19% vs state
Free-lunch eligible
25.7%
vs 57.6% Virginia avg
-55% vs state
How Montessori Public School of Arlington compares with Virginia and U.S. medians
Slightly above state median
16.5:1 - 2.6 above the Virginia state median of 13.9:1, indicating larger average class loads than typical schools in the state.
Montessori Public School of Arlington is a mid-sized combined-grade school in Arlington, Virginia, enrolling 528 students.
Class loads run heavy: 16.5:1 is larger than about 87% of Virginia schools and 19% above the 13.9:1 state mean, so each teacher carries more students than is typical.
Economic need runs somewhat below the state's typical profile, with 25.7% of students eligible for free meals.
With 528 students, its enrollment sits close to the Virginia median campus size.
Its Resource Investment Index sits near the middle of the pack among 1,868 scored Virginia schools.
Against 285 statewide peers matched on enrollment and economic need, it ranks mid-pack at #154.
Its student body is led by White (36%) and Hispanic or Latino (24%), more mixed than most schools in the state (diversity index 76/100).
Counselor access is stretched at roughly 440 students per counselor, well above the ASCA-recommended 250:1 ceiling.
Attendance holds up well here: only 2.5% of students were chronically absent, below the typical post-pandemic national figure.
The surrounding Arlington County Public Schools spends $21,782 per pupil, 49% above the Virginia average, a better-resourced district than most.
Among Arlington's public schools, it stands alongside Abingdon Elementary (768 students): Montessori Public School of Arlington is smaller than that campus by headcount and runs heavier classes (16.5:1 vs 12.4:1).
Arlington County Public Schools also operates Washington-Liberty High (3,044 students) and Wakefield High (2,646 students) alongside Montessori Public School of Arlington.
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
Montessori Public School of Arlington on the metrics families compare, against Virginia and U.S. means.
| Metric | This school | vs Virginia | Virginia avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 16.5:1 | ▲ 19% | 13.9:1 | 15.7:1 |
| Free-lunch eligible | 25.7% | ▼ 55% | 57.6% | 51.7% |
| Enrollment | 528 | top 53% | - | - |
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 36.2% of enrollment.
Simpson diversity index - at 75.6, Montessori Public School of Arlington is more mixed than the Virginia school average of 53.7.
District-wide per-pupil expenditure for Arlington County Public Schools, which includes Montessori Public School of Arlington.
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 |
|---|---|---|---|
| Washington-Liberty High | Larger | Similar economic need | Similar S:T ratio |
| Wakefield High | Larger | Similar economic need | Similar S:T ratio |
| Yorktown High | Larger | Lower economic need | Similar S:T ratio |
| Jefferson Middle | Larger | Similar economic need | Lower S:T ratio |
| Gunston Middle | Larger | Similar economic need | Lower S:T ratio |
Comparisons are relative to Montessori Public School of Arlington'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 Virginia, not just this city - a different peer set than the local comparisons above.
Next steps
Verify locally before acting on Montessori Public School of Arlington'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.
Montessori Public School of Arlington has 528 students enrolled. It is a public school in Arlington, VA.
The student-teacher ratio at Montessori Public School of Arlington is 16.5:1, which is 19% higher than the Virginia average of 13.9:1 and 5% higher than the national average of 15.7:1.
25.7% of students at Montessori Public School of Arlington are eligible for free lunch, compared to the Virginia average of 57.6%.
The largest demographic group at Montessori Public School of Arlington is White at 36.2% of enrollment, in Arlington, VA. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 75.6/100.
Montessori Public School of Arlington has a Resource Investment Index of 52/100 (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).
By Resource Investment Index, Montessori Public School of Arlington ranks #25 of 26 schools in Arlington, VA. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all schools in Arlington on the city page.
Montessori Public School of Arlington earns 52/100 on the Resource Investment Index, with class sizes larger than 87% of Virginia schools. It is also more racially and ethnically mixed than most Virginia 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 Montessori Public School of Arlington, Arlington County Public Schools also operates Washington-Liberty High (3,044 students), Wakefield High (2,646 students), and Yorktown High (2,593 students). See the Arlington County Public Schools 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, “Montessori Public School of Arlington, Arlington VA.” 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/montessori-public-school-of-arlington-va
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