Enrollment
426
Massachusetts · 2024-25 NCES data
Other / mixed grade configuration · Brighton, MA
Boston Green Academy Horace Mann Charter School
Federal NCES profile for Boston Green Academy Horace Mann Charter School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 38/100.
2024-25 NCES dataOther / mixed grade configurationNCES 250052602703Charter school
👥 S:T ratio 63
🌟 Gifted program 30
🎓 Counselors 57
📋 Attendance 0
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Boston Green Academy Horace Mann Charter School earns 38/100 on the Resource Investment Index, with class sizes smaller than 87% of Massachusetts schools.
- #3 of 5
- schools in Brighton · Resource Index
- 38
- Resource Index · Typical
- 9.3:1
- small classes for Massachusetts
- 426
- students enrolled
Boston Green Academy Horace Mann Charter School has class sizes smaller than 87% of Massachusetts schools. Computed live against every Massachusetts school reporting to NCES.
By Resource Investment Index, Boston Green Academy Horace Mann Charter School ranks #3 of 5 schools in Brighton, MA.
School address
NCES ID 250052602703 Verify on NCES CCD record →
Teachers (FTE)
46.0
Federal CCD staff survey
Students per teacher
9.3:1
vs 12.3:1 Massachusetts avg
-24% vs state
Student-teacher ratio in context
How Boston Green Academy Horace Mann Charter School compares with Massachusetts and U.S. medians
What stands out at Boston Green Academy Horace Mann Charter School
Boston Green Academy Horace Mann Charter School is a mid-sized charter combined-grade school in Brighton, Massachusetts, enrolling 426 students.
Classes run notably small here: at 9.3:1, Boston Green Academy Horace Mann Charter School is leaner than roughly 87% of Massachusetts schools and 24% under the state's 12.3:1 norm, more adult attention per pupil than most peers.
With 426 students, its enrollment sits close to the Massachusetts median campus size.
Its Resource Investment Index lands in the lower third of 1,831 scored Massachusetts schools.
Its student body is led by Hispanic or Latino (45%) and African American (43%) (diversity index 61/100).
Counselor coverage is strong, about 213 students per counselor, inside the American School Counselor Association's recommended 250:1.
Chronic absenteeism is elevated: 70.0% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
Its district draws 15.9% of revenue from federal sources, an above-typical federal share that tends to track a higher-need student population.
Among Brighton's public schools, it stands alongside Brighton High School (667 students): Boston Green Academy Horace Mann Charter School is smaller than that campus by headcount and runs leaner classes (9.3:1 vs 11.5:1).
Boston Green Academy Horace Mann Charter School (District) is a single-school charter district, so Boston Green Academy Horace Mann Charter School operates independently rather than alongside district-mates.
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 Boston Green Academy Horace Mann Charter School compares
Boston Green Academy Horace Mann Charter 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 | 9.3:1 | ▼ 24% | 12.3:1 | 15.7:1 |
| Enrollment | 426 | top 48% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
9.3:1
Leaner classes than 92% of US schools, among the more generously staffed nationally.
426
Bigger than 51% of US schools by enrollment, mid-sized for the country.
Equity indicators (what these measure)
Staffing depth
9.3:1
students per teacher
- 24% below state mean
Top 13% in Massachusetts - lower ratio than 87% of state schools
Well under the widely cited 15:1 individualized-attention benchmark, among the leaner class loads nationally.
Engagement
70.0%
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
$23,586
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
Counselors2.0 FTE
Per 213 students, the combined health-and-guidance staffing load for this school.
Discipline context
0
in-school suspensions + 72 out-of-school
Suspension rate: 0.0 per 100 students. Combined in-school and out-of-school rate: 16.9 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
Hispanic or Latino 44.8%
African American 42.7%
White 6.6%
Two or More 3.1%
Asian 2.1%
American Indian / Alaska Native 0.7%
Largest group: Hispanic or Latino at 44.8% of enrollment.
Student-body diversity index 61.1/100
Simpson diversity index - at 61.1, Boston Green Academy Horace Mann Charter School is more mixed than the Massachusetts school average of 47.3.
Programs
AP courses offered 5
Funding & spending
District-wide per-pupil expenditure for Boston Green Academy Horace Mann Charter School (District), which includes Boston Green Academy Horace Mann Charter School.
$23,586
Per student
+5%
vs Massachusetts
Avg $22,458
+42%
vs U.S.
Avg $16,593
Revenue mix
Local 71.3%
State 12.8%
Federal 15.9%
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.
Similar other schools in Brighton
4 comparable other schools (grades Mixed) serving the same city.
Brighton High School
Standard public school
667 students 11.5:1 students per teacher
Edison K-8 School
Standard public school
502 students 8:1 students per teacher
Winship Elementary School
Standard public school
353 students 13.6:1 students per teacher
Baldwin Early Learning Pilot Academy
Standard public school
165 students 11.8:1 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 (~426 students)
Next steps
Verify locally before acting on Boston Green Academy Horace Mann Charter School's federal record.
- Compare Boston Green Academy Horace Mann Charter School against another school. Compare schools
- Boston Green Academy Horace Mann Charter School (District)'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 Boston Green Academy Horace Mann Charter School
How many students attend Boston Green Academy Horace Mann Charter School?
Boston Green Academy Horace Mann Charter School has 426 students enrolled. It is a public school in Brighton, MA.
What is the student-teacher ratio at Boston Green Academy Horace Mann Charter School?
The student-teacher ratio at Boston Green Academy Horace Mann Charter School is 9.3:1, which is 24% lower than the Massachusetts average of 12.3:1 and 41% 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 Boston Green Academy Horace Mann Charter School?
The largest demographic group at Boston Green Academy Horace Mann Charter School is Hispanic or Latino at 44.8% of enrollment, in Brighton, MA. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 61.1/100.
What is the Resource Investment Index for Boston Green Academy Horace Mann Charter School?
Boston Green Academy Horace Mann Charter School has a Resource Investment Index of 38/100 (typical reported resources relative to schools nationally) based on 4 factors: student-teacher ratio, AP course offerings, counselor availability, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Boston Green Academy Horace Mann Charter School rank among schools in Brighton?
By Resource Investment Index, Boston Green Academy Horace Mann Charter School ranks #3 of 5 schools in Brighton, MA. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all schools in Brighton on the city page.
Is Boston Green Academy Horace Mann Charter School a good school?
Boston Green Academy Horace Mann Charter School earns 38/100 on the Resource Investment Index, with class sizes smaller than 87% 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 Green Academy Horace Mann Charter School (District)?
None; Boston Green Academy Horace Mann Charter School (District) is a single-school charter district, and Boston Green Academy Horace Mann Charter School is its only campus.
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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.