Enrollment
599
Massachusetts · 2024-25 NCES data
Elementary school (grades K-5) · Attleboro, MA
Cyril K. Brennan Middle School
Federal NCES profile for Cyril K. Brennan Middle School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 21/100.
2024-25 NCES dataElementary school (grades K-5)NCES 250219000087
👥 S:T ratio 43
🌟 Gifted program 30
🎓 Counselors 0
📋 Attendance 11
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Cyril K. Brennan Middle School earns 21/100 on the Resource Investment Index, with class sizes larger than 82% of Massachusetts schools.
- #8 of 8
- elementary schools in Attleboro · Resource Index
- 21
- Resource Index · Lower
- 14.3:1
- large classes for Massachusetts
- 599
- students enrolled
Cyril K. Brennan Middle School has class sizes larger than 82% of Massachusetts schools. Computed live against every Massachusetts school reporting to NCES.
By Resource Investment Index, Cyril K. Brennan Middle School ranks #8 of 8 elementary schools in Attleboro, MA.
School address
District: Attleboro · Massachusetts
NCES ID 250219000087 Verify on NCES CCD record →
Teachers (FTE)
42.0
Federal CCD staff survey
Students per teacher
14.3:1
vs 12.3:1 Massachusetts avg
+16% vs state
Student-teacher ratio in context
How Cyril K. Brennan Middle School compares with Massachusetts and U.S. medians
What stands out at Cyril K. Brennan Middle School
Cyril K. Brennan Middle School is a mid-sized elementary school in Attleboro, Massachusetts, enrolling 599 students.
Class loads run somewhat heavier than typical: 14.3:1 puts it in the larger third of Massachusetts schools by student-teacher ratio.
Enrollment of 599 puts it in the larger third of Massachusetts schools by headcount.
Its Resource Investment Index trails 99% of the 1,831 Massachusetts schools with a score on record, one of the lower results on this measure.
Its student body is led by White (55%) and Hispanic or Latino (21%) (diversity index 62/100).
Counselor access is stretched at roughly 599 students per counselor, well above the ASCA-recommended 250:1 ceiling.
Chronic absenteeism is elevated: 35.7% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
The surrounding Attleboro spends $16,704 per pupil, 26% below the Massachusetts average, a leaner-resourced district than most.
Among Attleboro's elementary schools, it stands alongside Wamsutta Middle School (593 students): Cyril K. Brennan Middle School is larger than that campus by headcount and runs leaner classes (14.3:1 vs 16:1).
Attleboro also operates Attleboro High (2,030 students) and Wamsutta Middle School (593 students) alongside Cyril K. Brennan 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
How Cyril K. Brennan Middle School compares
Cyril K. Brennan Middle 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 | 14.3:1 | ▲ 16% | 12.3:1 | 15.7:1 |
| Enrollment | 599 | top 26% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
14.3:1
Leaner classes than 54% of US schools, a middle-of-the-pack class size.
599
Bigger than 72% of US schools by enrollment, mid-sized for the country.
Equity indicators (what these measure)
Staffing depth
14.3:1
students per teacher
- 16% above state mean
Top 82% in Massachusetts - lower ratio than 18% of state schools
Close to the 15:1 benchmark most often cited for individualized attention.
Engagement
35.7%
chronically absent (missed 10%+ of school days)
At or above 20%, the commonly used threshold for "high" chronic absenteeism, signaling significant barriers to regular attendance.
Funding equity
$16,704
per pupil, district-wide
- below Massachusetts avg of $22,458
Close to the U.S. public-school average per-pupil spend.
Support staff
Counselors1.0 FTE
Per 599 students, the combined health-and-guidance staffing load for this school.
Discipline context
0
in-school suspensions + 54 out-of-school
Suspension rate: 0.0 per 100 students. Combined in-school and out-of-school rate: 9.0 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 55.4%
Hispanic or Latino 21.4%
African American 13.5%
Two or More 6.3%
Asian 3.2%
American Indian / Alaska Native 0.2%
Largest group: White at 55.4% of enrollment.
Student-body diversity index 62.4/100
Simpson diversity index - at 62.4, Cyril K. Brennan Middle School is more mixed than the Massachusetts school average of 47.3.
Programs
Funding & spending
District-wide per-pupil expenditure for Attleboro, which includes Cyril K. Brennan Middle School.
$16,704
Per student
-26%
vs Massachusetts
Avg $22,458
+1%
vs U.S.
Avg $16,593
Revenue mix
Local 48.1%
State 46.4%
Federal 5.5%
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 Cyril K. Brennan Middle School Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Attleboro High | Larger | No free-lunch data | Higher S:T ratio |
| Wamsutta Middle School | Similar size | No free-lunch data | Higher S:T ratio |
| Robert J. Coelho Middle School | Similar size | No free-lunch data | Higher S:T ratio |
| Hyman Fine Elementary School | Similar size | No free-lunch data | Higher S:T ratio |
| Peter Thacher Elementary School | Similar size | No free-lunch data | Similar S:T ratio |
Comparisons are relative to Cyril K. Brennan Middle School's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 2,030
- Students per teacher
- 17.2:1
- Resource Index
- 38/100
- Enrollment
- 593
- Students per teacher
- 16:1
- Resource Index
- 25/100
- Enrollment
- 574
- Students per teacher
- 15.9:1
- Resource Index
- 34/100
- Enrollment
- 472
- Students per teacher
- 18.9:1
- Resource Index
- 24/100
- Enrollment
- 467
- Students per teacher
- 13.7:1
- Resource Index
- 33/100
Similar elementary schools in Attleboro
6 comparable elementary schools (grades K-5) serving the same city.
Wamsutta Middle School
Standard public school
593 students 16:1 students per teacher
Robert J. Coelho Middle School
Standard public school
574 students 15.9:1 students per teacher
Hyman Fine Elementary School
Standard public school
472 students 18.9:1 students per teacher
Peter Thacher Elementary School
Standard public school
467 students 13.7:1 students per teacher
Hill-Roberts Elementary School
Standard public school
412 students 13.7:1 students per teacher
Thomas Willett Elementary School
Standard public school
373 students 14.9:1 students per teacher
Similar elementary 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 (~599 students)
Similar student-teacher ratio (~14.3:1)
Next steps
Verify locally before acting on Cyril K. Brennan Middle School's federal record.
- Compare Cyril K. Brennan Middle School against another school. Compare schools
- Attleboro'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 Cyril K. Brennan Middle School
How many students attend Cyril K. Brennan Middle School?
Cyril K. Brennan Middle School has 599 students enrolled. It is an elementary school in Attleboro, MA.
What is the student-teacher ratio at Cyril K. Brennan Middle School?
The student-teacher ratio at Cyril K. Brennan Middle School is 14.3:1, which is 16% higher than the Massachusetts average of 12.3:1 and 9% lower than the national average of 15.7:1.
What is the racial and ethnic makeup of Cyril K. Brennan Middle School?
The largest demographic group at Cyril K. Brennan Middle School is White at 55.4% of enrollment, in Attleboro, MA. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 62.4/100.
What is the Resource Investment Index for Cyril K. Brennan Middle School?
Cyril K. Brennan Middle School has a Resource Investment Index of 21/100 (lower 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 Cyril K. Brennan Middle School rank among elementary schools in Attleboro?
By Resource Investment Index, Cyril K. Brennan Middle School ranks #8 of 8 elementary schools in Attleboro, MA. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all elementary schools in Attleboro on the city page.
Is Cyril K. Brennan Middle School a good school?
Cyril K. Brennan Middle School earns 21/100 on the Resource Investment Index, with class sizes larger than 82% 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 Attleboro?
Besides Cyril K. Brennan Middle School, Attleboro also operates Attleboro High (2,030 students), Wamsutta Middle School (593 students), and Robert J. Coelho Middle School (574 students). See the Attleboro 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.