Enrollment
205
Massachusetts · 2024-25 NCES data
Other / mixed grade configuration · Roxbury, MA
Mason Elementary School
Federal NCES profile for Mason Elementary School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 40/100.
2024-25 NCES dataOther / mixed grade configurationNCES 250279000322
👥 S:T ratio 64
🌟 Gifted program 30
📋 Attendance 25
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Mason Elementary School earns 40/100 on the Resource Investment Index, with class sizes smaller than 90% of Massachusetts schools.
- #1 of 12
- schools in Roxbury · Resource Index
- 40
- Resource Index · Typical
- 8.9:1
- small classes for Massachusetts
- 205
- students enrolled
Mason Elementary School has class sizes smaller than 90% of Massachusetts schools. Computed live against every Massachusetts school reporting to NCES.
By Resource Investment Index, Mason Elementary School ranks #1 of 12 schools in Roxbury, MA.
School address
Teachers (FTE)
23.0
Federal CCD staff survey
Students per teacher
8.9:1
vs 12.3:1 Massachusetts avg
-28% vs state
Student-teacher ratio in context
How Mason Elementary School compares with Massachusetts and U.S. medians
What stands out at Mason Elementary School
Mason Elementary School is a small combined-grade school in Roxbury, Massachusetts, enrolling 205 students.
Classes run notably small here: at 8.9:1, Mason Elementary School is leaner than roughly 90% of Massachusetts schools and 28% under the state's 12.3:1 norm, more adult attention per pupil than most peers.
Enrollment of 205 puts it in the smaller third of Massachusetts schools by headcount.
Its Resource Investment Index sits near the middle of the pack among 1,831 scored Massachusetts schools.
Its student body is led by African American (51%) and Hispanic or Latino (40%) (diversity index 58/100).
Chronic absenteeism is elevated: 30.2% 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 Roxbury's public schools, it stands alongside O'bryant School of Math & Science (1,509 students): Mason Elementary School is smaller than that campus by headcount and runs leaner classes (8.9:1 vs 14.8:1).
Boston also operates Boston Latin School (2,424 students) and Boston Latin Academy (1,693 students) alongside Mason Elementary 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 Mason Elementary School compares
Mason Elementary 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 | 8.9:1 | ▼ 28% | 12.3:1 | 15.7:1 |
| Enrollment | 205 | top 86% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
8.9:1
Leaner classes than 93% of US schools, among the more generously staffed nationally.
205
Bigger than 20% of US schools by enrollment, a small campus.
Equity indicators (what these measure)
Staffing depth
8.9:1
students per teacher
- 28% below state mean
Top 10% in Massachusetts - lower ratio than 90% of state schools
Well under the widely cited 15:1 individualized-attention benchmark, among the leaner class loads nationally.
Engagement
30.2%
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
$34,835
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
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
African American 50.7%
Hispanic or Latino 40.0%
White 4.9%
Two or More 3.9%
American Indian / Alaska Native 0.5%
Largest group: African American at 50.7% of enrollment.
Student-body diversity index 57.9/100
Simpson diversity index - at 57.9, Mason Elementary School is more mixed than the Massachusetts school average of 47.3.
Programs
Funding & spending
District-wide per-pupil expenditure for Boston, which includes Mason Elementary School.
$34,835
Per student
+55%
vs Massachusetts
Avg $22,458
+110%
vs U.S.
Avg $16,593
Revenue mix
Local 62.0%
State 25.9%
Federal 12.1%
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 Mason Elementary School Compares to District-Mates
| 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 Mason Elementary School's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 2,424
- Students per teacher
- 19.5:1
- Resource Index
- 39/100
- Enrollment
- 1,693
- Students per teacher
- 18.6:1
- Resource Index
- 32/100
- Enrollment
- 1,509
- Students per teacher
- 14.8:1
- Resource Index
- 27/100
- Enrollment
- 1,252
- Students per teacher
- 13:1
- Resource Index
- 34/100
- Enrollment
- 1,121
- Students per teacher
- 9.6:1
- Resource Index
- 29/100
Similar other schools in Roxbury
6 comparable other schools (grades Mixed) serving the same city.
O'bryant School of Math & Science
Standard public school
1,509 students 14.8:1 students per teacher
Roxbury Preparatory Charter School
Standard public school
1,126 students 10:1 students per teacher
Orchard Gardens K-8 School
Standard public school
689 students 9.8:1 students per teacher
Dearborn 6-12 Stem Academy
Standard public school
565 students 12.3:1 students per teacher
Ellis Elementary School
Standard public school
391 students 11.2:1 students per teacher
Hernandez K-8 School
Standard public school
372 students 13.8:1 students per teacher
Similar other 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 (~205 students)
Similar student-teacher ratio (~8.9:1)
Next steps
Verify locally before acting on Mason Elementary School's federal record.
- Compare Mason Elementary School against another school. Compare schools
- Boston'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 Mason Elementary School
How many students attend Mason Elementary School?
Mason Elementary School has 205 students enrolled. It is a public school in Roxbury, MA.
What is the student-teacher ratio at Mason Elementary School?
The student-teacher ratio at Mason Elementary School is 8.9:1, which is 28% lower than the Massachusetts average of 12.3:1 and 43% 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 Mason Elementary School?
The largest demographic group at Mason Elementary School is African American at 50.7% of enrollment, in Roxbury, MA. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 57.9/100.
What is the Resource Investment Index for Mason Elementary School?
Mason Elementary School has a Resource Investment Index of 40/100 (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).
How does Mason Elementary School rank among schools in Roxbury?
By Resource Investment Index, Mason Elementary School ranks #1 of 12 schools in Roxbury, MA. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all schools in Roxbury on the city page.
Is Mason Elementary School a good school?
Mason Elementary School earns 40/100 on the Resource Investment Index, with class sizes smaller than 90% 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 Boston?
Besides Mason Elementary 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.
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.