Enrollment
529
Massachusetts · 2024-25 NCES data
Middle school (grades 6-8) · Arlington, MA
Gibbs School
Federal NCES profile for Gibbs School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 56/100.
2024-25 NCES dataMiddle school (grades 6-8)NCES 250198002889
👥 S:T ratio 47
🌟 Gifted program 30
🎓 Counselors 65
📋 Attendance 83
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Gibbs School earns 56/100 on the Resource Investment Index, with class sizes larger than 70% of Massachusetts schools.
- #1 of 11
- public schools in Arlington · Resource Index
- 56
- Resource Index · Higher
- 13.2:1
- large classes for Massachusetts
- 529
- students enrolled
Gibbs School has class sizes larger than 70% of Massachusetts schools. Computed live against every Massachusetts school reporting to NCES.
By Resource Investment Index, Gibbs School ranks #1 of 11 public schools in Arlington, MA.
School address
District: Arlington · Massachusetts
NCES ID 250198002889 Verify on NCES CCD record →
Teachers (FTE)
40.0
Federal CCD staff survey
Students per teacher
13.2:1
vs 12.3:1 Massachusetts avg
+7% vs state
Student-teacher ratio in context
How Gibbs School compares with Massachusetts and U.S. medians
What stands out at Gibbs School
Gibbs School is a mid-sized middle school in Arlington, Massachusetts, enrolling 529 students.
Class loads run somewhat heavier than typical: 13.2:1 puts it in the larger third of Massachusetts schools by student-teacher ratio.
Enrollment of 529 puts it in the larger third of Massachusetts schools by headcount.
Its Resource Investment Index outscores 92% of the 1,831 Massachusetts schools with a score on record, a top-tier result on this measure.
Its student body is led by White (67%) and Asian (11%) (diversity index 52/100).
Counselor coverage is strong, about 176 students per counselor, inside the American School Counselor Association's recommended 250:1.
Attendance holds up well here: only 7.0% of students were chronically absent, below the typical post-pandemic national figure.
Among Arlington's middle schools, it stands alongside Ottoson Middle (963 students): Gibbs School is smaller than that campus by headcount and runs heavier classes (13.2:1 vs 11.7:1).
Arlington also operates Arlington High (1,677 students) and Ottoson Middle (963 students) alongside Gibbs 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 Gibbs School compares
Gibbs School on the metrics families compare, against Massachusetts and U.S. means.
| Metric | This school | vs Massachusetts | Massachusetts avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 13.2:1 | ▲ 7% | 12.3:1 | 15.7:1 |
| Enrollment | 529 | top 33% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
13.2:1
Leaner classes than 65% of US schools, a middle-of-the-pack class size.
529
Bigger than 65% of US schools by enrollment, mid-sized for the country.
Equity indicators (what these measure)
Staffing depth
13.2:1
students per teacher
- 7% above state mean
Top 70% in Massachusetts - lower ratio than 30% of state schools
Close to the 15:1 benchmark most often cited for individualized attention.
Engagement
7.0%
chronically absent (missed 10%+ of school days)
In the 5-10% range, close to the pre-pandemic national baseline.
Funding equity
$20,341
per pupil, district-wide
- below Massachusetts avg of $22,458
Well above the U.S. public-school average, reflecting substantially higher local or state investment per enrolled student.
Support staff
Counselors3.0 FTE
Per 176 students, the combined health-and-guidance staffing load for this school.
Discipline context
0
in-school suspensions + 5 out-of-school
Suspension rate: 0.0 per 100 students. Combined in-school and out-of-school rate: 0.9 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 67.3%
Asian 10.6%
Two or More 10.5%
Hispanic or Latino 7.0%
African American 4.6%
Largest group: White at 67.3% of enrollment.
Student-body diversity index 51.8/100
Simpson diversity index - at 51.8, Gibbs School is more mixed than the Massachusetts school average of 47.3.
Programs
Funding & spending
District-wide per-pupil expenditure for Arlington, which includes Gibbs School.
$20,341
Per student
-9%
vs Massachusetts
Avg $22,458
+23%
vs U.S.
Avg $16,593
Revenue mix
Local 62.2%
State 32.9%
Federal 4.9%
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 Gibbs School Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Arlington High | Larger | No free-lunch data | Similar S:T ratio |
| Ottoson Middle | Larger | No free-lunch data | Lower S:T ratio |
| Thompson | Similar size | No free-lunch data | Similar S:T ratio |
| M Norcross Stratton | Similar size | No free-lunch data | Similar S:T ratio |
| Brackett | Smaller | No free-lunch data | Similar S:T ratio |
Comparisons are relative to Gibbs School's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 1,677
- Students per teacher
- 14.6:1
- Resource Index
- 44/100
- Enrollment
- 963
- Students per teacher
- 11.7:1
- Resource Index
- 56/100
- Enrollment
- 537
- Students per teacher
- 13.8:1
- Resource Index
- 48/100
- Enrollment
- 448
- Students per teacher
- 12.4:1
- Resource Index
- 50/100
- Enrollment
- 394
- Students per teacher
- 11.9:1
- Resource Index
- 44/100
Similar middle schools in Arlington
1 comparable middle schools (grades 6-8) serving the same city.
Similar middle schools statewide
Matched by enrollment size and by staffing ratio across all of Massachusetts, not just this city - a different peer set than the local comparisons above.
Similar enrollment (~529 students)
Similar student-teacher ratio (~13.2:1)
Next steps
Verify locally before acting on Gibbs School's federal record.
- Compare Gibbs School against another school. Compare schools
- Arlington'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 Gibbs School
How many students attend Gibbs School?
Gibbs School has 529 students enrolled. It is a middle school in Arlington, MA.
What is the student-teacher ratio at Gibbs School?
The student-teacher ratio at Gibbs School is 13.2:1, which is 7% higher than the Massachusetts average of 12.3:1 and 16% lower than the national average of 15.7:1.
What is the racial and ethnic makeup of Gibbs School?
The largest demographic group at Gibbs School is White at 67.3% of enrollment, in Arlington, MA. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 51.8/100.
What is the Resource Investment Index for Gibbs School?
Gibbs School has a Resource Investment Index of 56/100 (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 Gibbs School rank among public schools in Arlington?
By Resource Investment Index, Gibbs School ranks #1 of 11 public schools in Arlington, MA. 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.
Is Gibbs School a good school?
Gibbs School earns 56/100 on the Resource Investment Index, with class sizes larger than 70% of Massachusetts 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 Arlington?
Besides Gibbs School, Arlington also operates Arlington High (1,677 students), Ottoson Middle (963 students), and Thompson (537 students). See the Arlington 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.