- Enrollment
- 1,677
- Students per teacher
- 14.6:1
- Resource Index
- 44/100
Middle school (grades 6-8) · Arlington, MA
Ottoson Middle
Federal NCES profile for Ottoson Middle, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 56/100.
2024-25 NCES dataMiddle school (grades 6-8)NCES 250198000063
👥 S:T ratio 53
🌟 Gifted program 30
🎓 Counselors 68
📋 Attendance 73
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Ottoson Middle earns 56/100 on the Resource Investment Index, with class sizes near the Massachusetts median.
- #1 of 11
- public schools in Arlington · Resource Index
- 56
- Resource Index · Higher
- 11.7:1
- students per teacher
- 963
- students enrolled
Ottoson Middle has class sizes near the Massachusetts median. Computed live against every Massachusetts school reporting to NCES.
By Resource Investment Index, Ottoson Middle ranks #1 of 11 public schools in Arlington, MA.
School address
District: Arlington · Massachusetts
NCES ID 250198000063 Verify on NCES CCD record →
CCD year-over-year · 2022-23 → 2023-24
+19 students YoY
Ottoson Middle held near 941 students from 2022-23 to 2023-24 (+19 headcount).
Teacher FTE added 82.4 → 85.3 across the same CCD years.
Source: NCES Common Core of Data public-school universe (2022-23, 2023-24).
Steady CCD campus
+19 students YoY 250198000063 · Arlington, MA Middle · MID · TRAD
963 enr · 11.7:1 · RII 56
Nearest enrollment peer: Arlington High (1,677 students)
Ottoson Middle held near 941 students from 2022-23 to 2023-24 (+19 headcount). Teacher FTE added 82.4 → 85.3 across the same CCD years. Read with this school → · District book → · Massachusetts schools → · Find another →
Ottoson Middle in the enrollment neighbourhood
Fall enrollment among this campus and nearest district peers
- Arlington High
Arlington High
1,677 students
- This school
Ottoson Middle
963 students
- Thompson 537
Thompson
537 students
- Gibbs School 529
Gibbs School
529 students
- M Norcross Str 448
M Norcross Stratton
448 students
- Brackett 394
Brackett
394 students
What this shows Ottoson Middle reports 963 students on the CCD universe file.
How Ottoson Middle compares
Ottoson Middle held steady on CCD headcount: ratios and free-lunch share vs Massachusetts and U.S. means.
| Metric | This school | vs Massachusetts | Massachusetts avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 11.7:1 | ▼ 5% | 12.3:1 | 15.7:1 |
| Enrollment | 963 | top 9% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
11.7:1
Leaner classes than 78% of US schools, among the more generously staffed nationally.
963
Bigger than 90% of US schools by enrollment, a large campus nationally.
Equity indicators methodology
Staffing depth
11.7:1
students per teacher
- 5% below state mean
Top 47% in Massachusetts - lower ratio than 53% of state schools
Well under the widely cited 15:1 individualized-attention benchmark, among the leaner class loads nationally.
Engagement
10.8%
chronically absent (missed 10%+ of school days)
In the 10-15% range, above the pre-pandemic national baseline but within the broader post-pandemic picture.
Funding equity
$20,753
per pupil, district-wide
- below Massachusetts avg of $23,695
Somewhat above the U.S. public-school average, reflecting higher local or state investment per enrolled student.
Support staff
Counselors6.0 FTE
Per 161 students, the combined health-and-guidance staffing load for this school.
Discipline context
20
in-school suspensions + 12 out-of-school
Suspension rate: 2.1 per 100 students. Combined in-school and out-of-school rate: 3.3 per 100 students. Reported via the Civil Rights Data Collection.
Student demographics
White 68.2%
Asian 13.8%
Hispanic or Latino 8.6%
Two or More 6.5%
African American 2.9%
Largest group: White at 68.2% of enrollment.
Student-body diversity index 50.3/100
Simpson diversity index - at 50.3, Ottoson Middle is more mixed than the Massachusetts school average of 47.3.
Programs
District finance for Arlington reports $20,753 per pupil (NCES F-33) - open the district page for the full revenue mix.
How Ottoson Middle Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Arlington High | Larger | No free-lunch data | Higher S:T ratio |
| Thompson | Smaller | No free-lunch data | Higher S:T ratio |
| Gibbs School | Smaller | No free-lunch data | Higher S:T ratio |
| M Norcross Stratton | Smaller | No free-lunch data | Similar S:T ratio |
| Brackett | Smaller | No free-lunch data | Similar S:T ratio |
Comparisons are relative to Ottoson Middle's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 537
- Students per teacher
- 13.8:1
- Resource Index
- 48/100
- Enrollment
- 529
- Students per teacher
- 13.2:1
- Resource Index
- 56/100
- 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.
Nationwide middle schools with similar size or staffing
Out-of-state peers matched by enrollment and by student-teacher ratio, not the same-city or same-district lists above.
Similar enrollment (~963 students)
Frequently asked questions about Ottoson Middle
How many students attend Ottoson Middle?
Ottoson Middle has 963 students enrolled. It is a middle school in Arlington, MA. CCD year-over-year: 922 (2022-23) → 941 (2023-24), nearly flat (+19).
What is the student-teacher ratio at Ottoson Middle?
The student-teacher ratio at Ottoson Middle is 11.7:1, which is 5% lower than the Massachusetts average of 12.3:1 and 25% lower than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
What is the racial and ethnic makeup of Ottoson Middle?
The largest demographic group at Ottoson Middle is White at 68.2% of enrollment, in Arlington, MA. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 50.3/100.
What is the Resource Investment Index for Ottoson Middle?
Ottoson Middle has a Resource Investment Index of 56/100 (higher reported resources relative to schools nationally) based on 4 factors: student-teacher ratio, gifted-program reporting, counselor availability, chronic absenteeism. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Ottoson Middle rank among public schools in Arlington?
By Resource Investment Index, Ottoson Middle 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.
What other schools are in Arlington?
Besides Ottoson Middle, Arlington also operates Arlington High (1,677 students), Thompson (537 students), and Gibbs School (529 students). See the Arlington district page for the complete list.