Enrollment
601
Massachusetts · 2024-25 NCES data
Other / mixed grade configuration · Mattapan, MA
Federal NCES profile for Mildred Avenue K-8 School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 38/100.
The verdict
Mildred Avenue K-8 School earns 38/100 on the Resource Investment Index, with class sizes near the Massachusetts median.
Mildred Avenue K-8 School has class sizes near the Massachusetts median. Computed live against every Massachusetts school reporting to NCES.
By Resource Investment Index, Mildred Avenue K-8 School ranks #4 of 6 schools in Mattapan, MA.
NCES ID 250279002670 Verify on NCES CCD record →
Enrollment
601
Massachusetts · 2024-25 NCES data
Teachers (FTE)
55.0
Federal CCD staff survey
Students per teacher
10.9:1
vs 12.3:1 Massachusetts avg
-11% vs state
How Mildred Avenue K-8 School compares with Massachusetts and U.S. medians
At or below state median
10.9:1 - 1.4 below the Massachusetts state median of 12.3:1, indicating smaller average class loads than typical schools in the state.
Mildred Avenue K-8 School is a mid-sized combined-grade school in Mattapan, Massachusetts, enrolling 601 students.
Class sizes run a bit leaner than typical: 10.9:1 puts it in the smaller third of Massachusetts schools by student-teacher ratio.
Enrollment of 601 puts it in the larger third of Massachusetts schools by headcount.
Its Resource Investment Index lands in the lower third of 1,831 scored Massachusetts schools.
Its student body is led by African American (55%) and Hispanic or Latino (37%) (diversity index 56/100).
Chronic absenteeism is elevated: 29.1% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
The surrounding Boston spends $34,835 per pupil, 55% above the Massachusetts average, a better-resourced district than most.
Among Mattapan's public schools, it stands alongside Mattahunt Elementary School (581 students): Mildred Avenue K-8 School is larger than that campus by headcount and runs heavier classes (10.9:1 vs 10.8:1).
Boston also operates Boston Latin School (2,424 students) and Boston Latin Academy (1,693 students) alongside Mildred Avenue K-8 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
Mildred Avenue K-8 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 | 10.9:1 | ▼ 11% | 12.3:1 | 15.7:1 |
| Enrollment | 601 | top 25% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
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.
Largest group: African American at 55.1% of enrollment.
Simpson diversity index - at 56.0, Mildred Avenue K-8 School is more mixed than the Massachusetts school average of 47.3.
District-wide per-pupil expenditure for Boston, which includes Mildred Avenue K-8 School.
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.
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Boston Latin School | Larger | No free-lunch data | Higher S:T ratio |
| Boston Latin Academy | Larger | No free-lunch data | Higher S:T ratio |
| O'bryant School of Math & Science | Larger | No free-lunch data | Higher S:T ratio |
| East Boston High School | Larger | No free-lunch data | Higher S:T ratio |
| Madison Park Technical Vocational High School | Larger | No free-lunch data | Similar S:T ratio |
Comparisons are relative to Mildred Avenue K-8 School's own figures; each column derives from NCES Common Core of Data.
5 comparable other schools (grades Mixed) serving the same city.
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.
Next steps
Verify locally before acting on Mildred Avenue K-8 School's federal record.
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.
Mildred Avenue K-8 School has 601 students enrolled. It is a public school in Mattapan, MA.
The student-teacher ratio at Mildred Avenue K-8 School is 10.9:1, which is 11% lower than the Massachusetts average of 12.3:1 and 31% lower than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
The largest demographic group at Mildred Avenue K-8 School is African American at 55.1% of enrollment, in Mattapan, MA. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 56.0/100.
Mildred Avenue K-8 School has a Resource Investment Index of 38/100 (typical 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).
By Resource Investment Index, Mildred Avenue K-8 School ranks #4 of 6 schools in Mattapan, MA. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all schools in Mattapan on the city page.
Mildred Avenue K-8 School earns 38/100 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.
Besides Mildred Avenue K-8 School, Boston also operates Boston Latin School (2,424 students), Boston Latin Academy (1,693 students), and O'bryant School of Math & Science (1,509 students). See the Boston district page for the complete list.
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.
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PlainSchools, “Mildred Avenue K-8 School, Mattapan MA.” Compiled from NCES Common Core of Data, Civil Rights Data Collection, and the NCES F-33 finance survey; data as of June 2026. https://plainschools.com/schools/mildred-avenue-k-8-school-ma
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