Enrollment
398
Massachusetts · 2024-25 NCES data
Elementary school (grades K-5) · Winchester, MA
Ambrose Elementary
Federal NCES profile for Ambrose Elementary, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 56/100.
2024-25 NCES dataElementary school (grades K-5)NCES 251311002164
👥 S:T ratio 49
🌟 Gifted program 30
📋 Attendance 88
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Ambrose Elementary earns 56/100 on the Resource Investment Index, with class sizes near the Massachusetts median.
- #1 of 3
- elementary schools in Winchester · Resource Index
- 56
- Resource Index · Higher
- 12.8:1
- students per teacher
- 398
- students enrolled
Ambrose Elementary has class sizes near the Massachusetts median. Computed live against every Massachusetts school reporting to NCES.
By Resource Investment Index, Ambrose Elementary ranks #1 of 3 elementary schools in Winchester, MA.
School address
District: Winchester · Massachusetts
NCES ID 251311002164 Verify on NCES CCD record →
Teachers (FTE)
31.0
Federal CCD staff survey
Students per teacher
12.8:1
vs 12.3:1 Massachusetts avg
+4% vs state
Student-teacher ratio in context
How Ambrose Elementary compares with Massachusetts and U.S. medians
What stands out at Ambrose Elementary
Ambrose Elementary is a mid-sized elementary school in Winchester, Massachusetts, enrolling 398 students.
Class loads run somewhat heavier than typical: 12.8:1 puts it in the larger third of Massachusetts schools by student-teacher ratio.
With 398 students, its enrollment sits close to the Massachusetts median campus size.
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 (79%) and Asian (10%) (diversity index 35/100).
Attendance holds up well here: only 4.8% of students were chronically absent, below the typical post-pandemic national figure.
Among Winchester's elementary schools, it stands alongside Muraco Elementary (352 students): Ambrose Elementary is larger than that campus by headcount and runs heavier classes (12.8:1 vs 10.7:1).
Winchester also operates Winchester High School (1,404 students) and Mccall Middle (1,036 students) alongside Ambrose Elementary.
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 Ambrose Elementary compares
Ambrose Elementary on the metrics families compare, against Massachusetts and U.S. means.
| Metric | This school | vs Massachusetts | Massachusetts avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 12.8:1 | ▲ 4% | 12.3:1 | 15.7:1 |
| Enrollment | 398 | top 52% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
12.8:1
Leaner classes than 68% of US schools, among the more generously staffed nationally.
398
Bigger than 47% of US schools by enrollment, mid-sized for the country.
Equity indicators (what these measure)
Staffing depth
12.8:1
students per teacher
- 4% above state mean
Top 65% in Massachusetts - lower ratio than 35% of state schools
Well under the widely cited 15:1 individualized-attention benchmark, among the leaner class loads nationally.
Engagement
4.8%
chronically absent (missed 10%+ of school days)
Below 5%, comfortably under the pre-pandemic national baseline for chronic absenteeism.
Funding equity
$19,114
per pupil, district-wide
- below Massachusetts avg of $22,458
Somewhat above the U.S. public-school average, reflecting higher local or state investment per enrolled student.
Support staff
Counselors0.0 FTE
Student-support staffing from the Civil Rights Data Collection.
Discipline context
0
in-school suspensions + 0 out-of-school
Suspension rate: 0.0 per 100 students. Combined in-school and out-of-school rate: 0.0 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 79.4%
Asian 9.5%
Two or More 7.0%
Hispanic or Latino 3.5%
African American 0.5%
Largest group: White at 79.4% of enrollment.
Student-body diversity index 35.4/100
Simpson diversity index - at 35.4, Ambrose Elementary is less mixed than the Massachusetts school average of 47.3.
Programs
Funding & spending
District-wide per-pupil expenditure for Winchester, which includes Ambrose Elementary.
$19,114
Per student
-15%
vs Massachusetts
Avg $22,458
+15%
vs U.S.
Avg $16,593
Revenue mix
Local 75.0%
State 21.7%
Federal 3.3%
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 Ambrose Elementary Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Winchester High School | Larger | No free-lunch data | Higher S:T ratio |
| Mccall Middle | Larger | No free-lunch data | Similar S:T ratio |
| Vinson-Owen Elementary | Similar size | No free-lunch data | Similar S:T ratio |
| Lynch Elementary | Similar size | No free-lunch data | Lower S:T ratio |
| Muraco Elementary | Similar size | No free-lunch data | Lower S:T ratio |
Comparisons are relative to Ambrose Elementary's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 1,404
- Students per teacher
- 14.8:1
- Resource Index
- 49/100
- Enrollment
- 1,036
- Students per teacher
- 11.6:1
- Resource Index
- 54/100
- Enrollment
- 441
- Students per teacher
- 13.4:1
- Resource Index
- 51/100
- Enrollment
- 426
- Students per teacher
- 9.7:1
- Resource Index
- 56/100
- Enrollment
- 352
- Students per teacher
- 10.7:1
- Resource Index
- 56/100
Similar elementary schools in Winchester
2 comparable elementary schools (grades K-5) serving the same city.
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 (~398 students)
Similar student-teacher ratio (~12.8:1)
Next steps
Verify locally before acting on Ambrose Elementary's federal record.
- Compare Ambrose Elementary against another school. Compare schools
- Winchester'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 Ambrose Elementary
How many students attend Ambrose Elementary?
Ambrose Elementary has 398 students enrolled. It is an elementary school in Winchester, MA.
What is the student-teacher ratio at Ambrose Elementary?
The student-teacher ratio at Ambrose Elementary is 12.8:1, which is 4% higher than the Massachusetts average of 12.3:1 and 18% lower than the national average of 15.7:1.
What is the racial and ethnic makeup of Ambrose Elementary?
The largest demographic group at Ambrose Elementary is White at 79.4% of enrollment, in Winchester, MA.
What is the Resource Investment Index for Ambrose Elementary?
Ambrose Elementary has a Resource Investment Index of 56/100 (higher reported resources relative to schools nationally) based on 3 factors: student-teacher ratio, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Ambrose Elementary rank among elementary schools in Winchester?
By Resource Investment Index, Ambrose Elementary ranks #1 of 3 elementary schools in Winchester, 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 Winchester on the city page.
Is Ambrose Elementary a good school?
Ambrose Elementary earns 56/100 on the Resource Investment Index, with class sizes near the Massachusetts median. 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 Winchester?
Besides Ambrose Elementary, Winchester also operates Winchester High School (1,404 students), Mccall Middle (1,036 students), and Vinson-Owen Elementary (441 students). See the Winchester 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.