Enrollment
816
Massachusetts · 2024-25 NCES data
Middle school (grades 6-8) · Sudbury, MA
Ephraim Curtis Middle
Federal NCES profile for Ephraim Curtis Middle, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 58/100.
2024-25 NCES dataMiddle school (grades 6-8)NCES 251134001872
👥 S:T ratio 58
🌟 Gifted program 30
🎓 Counselors 73
📋 Attendance 70
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Ephraim Curtis Middle earns 58/100 on the Resource Investment Index, with class sizes smaller than 73% of Massachusetts schools.
- #2 of 6
- public schools in Sudbury · Resource Index
- 58
- Resource Index · Higher
- 10.5:1
- small classes for Massachusetts
- 816
- students enrolled
Ephraim Curtis Middle has class sizes smaller than 73% of Massachusetts schools. Computed live against every Massachusetts school reporting to NCES.
By Resource Investment Index, Ephraim Curtis Middle ranks #2 of 6 public schools in Sudbury, MA.
School address
District: Sudbury · Massachusetts
NCES ID 251134001872 Verify on NCES CCD record →
Teachers (FTE)
78.0
Federal CCD staff survey
Students per teacher
10.5:1
vs 12.3:1 Massachusetts avg
-15% vs state
Student-teacher ratio in context
How Ephraim Curtis Middle compares with Massachusetts and U.S. medians
What stands out at Ephraim Curtis Middle
Ephraim Curtis Middle is a large middle school in Sudbury, Massachusetts, enrolling 816 students.
Class sizes run a bit leaner than typical: 10.5:1 puts it in the smaller third of Massachusetts schools by student-teacher ratio.
Enrollment of 816 puts it in the larger third of Massachusetts schools by headcount.
Its Resource Investment Index outscores 96% 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 (72%) and Asian (11%) (diversity index 46/100).
Counselor coverage is strong, about 136 students per counselor, inside the American School Counselor Association's recommended 250:1.
12.0% of students were chronically absent in the 2021-22 collection, in line with the post-pandemic national range.
The federal civil-rights collection also records 33 expulsions at this campus for 2021-22.
Sudbury also operates Peter Noyes (508 students) and Israel Loring School (426 students) alongside Ephraim Curtis Middle.
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 Ephraim Curtis Middle compares
Ephraim Curtis Middle on the metrics families compare, against Massachusetts and U.S. means.
| Metric | This school | vs Massachusetts | Massachusetts avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 10.5:1 | ▼ 15% | 12.3:1 | 15.7:1 |
| Enrollment | 816 | top 12% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
10.5:1
Leaner classes than 86% of US schools, among the more generously staffed nationally.
816
Bigger than 86% of US schools by enrollment, a large campus nationally.
Equity indicators (what these measure)
Staffing depth
10.5:1
students per teacher
- 15% below state mean
Top 27% in Massachusetts - lower ratio than 73% of state schools
Well under the widely cited 15:1 individualized-attention benchmark, among the leaner class loads nationally.
Engagement
12.0%
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
$22,666
per pupil, district-wide
- above 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
Counselors6.0 FTE
Per 136 students, the combined health-and-guidance staffing load for this school.
Discipline context
23
in-school suspensions + 12 out-of-school
Suspension rate: 2.8 per 100 students. Combined in-school and out-of-school rate: 4.3 per 100 students. Reported via the Civil Rights Data Collection. Includes 33 expulsions.
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 72.2%
Asian 10.9%
Two or More 7.0%
Hispanic or Latino 5.9%
African American 3.7%
American Indian / Alaska Native 0.1%
Native Hawaiian / Pacific Islander 0.1%
Largest group: White at 72.2% of enrollment.
Student-body diversity index 45.7/100
Simpson diversity index - at 45.7, Ephraim Curtis Middle is about as mixed as the Massachusetts school average of 47.3.
Programs
Funding & spending
District-wide per-pupil expenditure for Sudbury, which includes Ephraim Curtis Middle.
$22,666
Per student
+1%
vs Massachusetts
Avg $22,458
+37%
vs U.S.
Avg $16,593
Revenue mix
Local 49.3%
State 45.1%
Federal 5.6%
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 Ephraim Curtis Middle Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Peter Noyes | Smaller | No free-lunch data | Higher S:T ratio |
| Israel Loring School | Smaller | No free-lunch data | Higher S:T ratio |
| Josiah Haynes | Smaller | No free-lunch data | Higher S:T ratio |
| General John Nixon Elementary | Smaller | No free-lunch data | Higher S:T ratio |
Comparisons are relative to Ephraim Curtis Middle's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 508
- Students per teacher
- 13:1
- Resource Index
- 45/100
- Enrollment
- 426
- Students per teacher
- 12.2:1
- Resource Index
- 44/100
- Enrollment
- 397
- Students per teacher
- 15.9:1
- Resource Index
- 48/100
- Enrollment
- 382
- Students per teacher
- 14.7:1
- Resource Index
- 44/100
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 (~816 students)
Similar student-teacher ratio (~10.5:1)
Next steps
Verify locally before acting on Ephraim Curtis Middle's federal record.
- Compare Ephraim Curtis Middle against another school. Compare schools
- Sudbury'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 Ephraim Curtis Middle
How many students attend Ephraim Curtis Middle?
Ephraim Curtis Middle has 816 students enrolled. It is a middle school in Sudbury, MA.
What is the student-teacher ratio at Ephraim Curtis Middle?
The student-teacher ratio at Ephraim Curtis Middle is 10.5:1, which is 15% lower than the Massachusetts average of 12.3:1 and 33% 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 Ephraim Curtis Middle?
The largest demographic group at Ephraim Curtis Middle is White at 72.2% of enrollment, in Sudbury, MA.
What is the Resource Investment Index for Ephraim Curtis Middle?
Ephraim Curtis Middle has a Resource Investment Index of 58/100 (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 Ephraim Curtis Middle rank among public schools in Sudbury?
By Resource Investment Index, Ephraim Curtis Middle ranks #2 of 6 public schools in Sudbury, 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 Sudbury on the city page.
Is Ephraim Curtis Middle a good school?
Ephraim Curtis Middle earns 58/100 on the Resource Investment Index, with class sizes smaller than 73% 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 Sudbury?
Besides Ephraim Curtis Middle, Sudbury also operates Peter Noyes (508 students), Israel Loring School (426 students), and Josiah Haynes (397 students). See the Sudbury 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.