- Enrollment
- 1,402
- Students per teacher
- 14:1
- Resource Index
- 47/100
Elementary school (grades K-5) · Chelmsford, MA
Mccarthy Middle School
Federal NCES profile for Mccarthy Middle School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 48/100.
2024-25 NCES dataElementary school (grades K-5)NCES 250351000478
👥 S:T ratio 50
🌟 Gifted program 30
🎓 Counselors 46
📋 Attendance 65
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Mccarthy Middle School earns 48/100 on the Resource Investment Index, with class sizes near the Massachusetts median.
- #2 of 5
- elementary schools in Chelmsford · Resource Index
- 48
- Resource Index · Typical
- 12.6:1
- students per teacher
- 808
- students enrolled
Mccarthy Middle School has class sizes near the Massachusetts median. Computed live against every Massachusetts school reporting to NCES.
By Resource Investment Index, Mccarthy Middle School ranks #2 of 5 elementary schools in Chelmsford, MA.
School address
District: Chelmsford · Massachusetts
NCES ID 250351000478 Verify on NCES CCD record →
CCD year-over-year · 2022-23 → 2023-24
-62 students YoY
Mccarthy Middle School shrank from 844 students in 2022-23 to 782 in 2023-24 (-7.3%).
Teacher FTE added 64.0 → 64.6 across the same CCD years.
Source: NCES Common Core of Data public-school universe (2022-23, 2023-24).
Shrinking CCD campus
-62 students YoY 250351000478 · Chelmsford, MA Elementary · MID · TRAD
808 enr · 12.6:1 · RII 48
Nearest enrollment peer: Chelmsford High (1,402 students)
Mccarthy Middle School shrank from 844 students in 2022-23 to 782 in 2023-24 (-7.3%). Teacher FTE added 64.0 → 64.6 across the same CCD years. Read with this school → · District book → · Massachusetts schools → · Find another →
Mccarthy Middle School in the enrollment neighbourhood
Fall enrollment among this campus and nearest district peers
- Chelmsford Hig
Chelmsford High
1,402 students
- This school
Mccarthy Middle School
808 students
- Col Moses Park
Col Moses Parker School
778 students
- Byam School 510
Byam School
510 students
- Center Element 480
Center Elementary School
480 students
- Charles D Harr 468
Charles D Harrington
468 students
What this shows Mccarthy Middle School reports 808 students on the CCD universe file.
How Mccarthy Middle School compares
Mccarthy Middle School is a shrinking campus on CCD: ratios and free-lunch share vs Massachusetts and U.S. means.
| Metric | This school | vs Massachusetts | Massachusetts avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 12.6:1 | ▲ 2% | 12.3:1 | 15.7:1 |
| Enrollment | 808 | top 13% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
12.6:1
Leaner classes than 70% of US schools, among the more generously staffed nationally.
808
Bigger than 86% of US schools by enrollment, a large campus nationally.
Equity indicators methodology
Staffing depth
12.6:1
students per teacher
- 2% above state mean
Top 62% in Massachusetts - lower ratio than 38% of state schools
Well under the widely cited 15:1 individualized-attention benchmark, among the leaner class loads nationally.
Engagement
13.9%
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
$18,032
per pupil, district-wide
- below Massachusetts avg of $23,695
Close to the U.S. public-school average per-pupil spend.
Support staff
Counselors3.0 FTE
Per 269 students, the combined health-and-guidance staffing load for this school.
Discipline context
5
in-school suspensions + 25 out-of-school
Suspension rate: 0.6 per 100 students. Combined in-school and out-of-school rate: 3.7 per 100 students. Reported via the Civil Rights Data Collection.
Student demographics
White 63.0%
Asian 20.3%
Hispanic or Latino 7.8%
African American 4.5%
Two or More 4.2%
American Indian / Alaska Native 0.1%
Native Hawaiian / Pacific Islander 0.1%
Largest group: White at 63.0% of enrollment.
Student-body diversity index 55.2/100
Simpson diversity index - at 55.2, Mccarthy Middle School is more mixed than the Massachusetts school average of 47.3.
Programs
District finance for Chelmsford reports $18,032 per pupil (NCES F-33) - open the district page for the full revenue mix.
How Mccarthy Middle School Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Chelmsford High | Larger | No free-lunch data | Similar S:T ratio |
| Col Moses Parker School | Similar size | No free-lunch data | Similar S:T ratio |
| Byam School | Smaller | No free-lunch data | Similar S:T ratio |
| Center Elementary School | Smaller | No free-lunch data | Similar S:T ratio |
| Charles D Harrington | Smaller | No free-lunch data | Higher S:T ratio |
Comparisons are relative to Mccarthy Middle School's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 778
- Students per teacher
- 12.2:1
- Resource Index
- 40/100
- Enrollment
- 510
- Students per teacher
- 13.1:1
- Resource Index
- 32/100
- Enrollment
- 480
- Students per teacher
- 13.7:1
- Resource Index
- 38/100
- Enrollment
- 468
- Students per teacher
- 14.6:1
- Resource Index
- 34/100
Similar elementary schools in Chelmsford
4 comparable elementary schools (grades K-5) serving the same city.
Col Moses Parker School
Standard public school
778 students 12.2:1 students per teacher
Byam School
Standard public school
510 students 13.1:1 students per teacher
Center Elementary School
Standard public school
480 students 13.7:1 students per teacher
South Row
Standard public school
464 students 13.6:1 students per teacher
Nationwide elementary 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 (~808 students)
Frequently asked questions about Mccarthy Middle School
How many students attend Mccarthy Middle School?
Mccarthy Middle School has 808 students enrolled. It is an elementary school in Chelmsford, MA. CCD year-over-year: 844 (2022-23) → 782 (2023-24), down 62.
What is the student-teacher ratio at Mccarthy Middle School?
The student-teacher ratio at Mccarthy Middle School is 12.6:1, which is 2% higher than the Massachusetts average of 12.3:1 and 20% lower than the national average of 15.7:1.
What is the racial and ethnic makeup of Mccarthy Middle School?
The largest demographic group at Mccarthy Middle School is White at 63.0% of enrollment, in Chelmsford, MA. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 55.2/100.
What is the Resource Investment Index for Mccarthy Middle School?
Mccarthy Middle School has a Resource Investment Index of 48/100 (typical 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 Mccarthy Middle School rank among elementary schools in Chelmsford?
By Resource Investment Index, Mccarthy Middle School ranks #2 of 5 elementary schools in Chelmsford, 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 Chelmsford on the city page.
What other schools are in Chelmsford?
Besides Mccarthy Middle School, Chelmsford also operates Chelmsford High (1,402 students), Col Moses Parker School (778 students), and Byam School (510 students). See the Chelmsford district page for the complete list.