Enrollment
890
Massachusetts · 2024-25 NCES data
Other / mixed grade configuration · Cambridge, MA
Prospect Hill Academy Charter School
Federal NCES profile for Prospect Hill Academy Charter School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 56/100.
2024-25 NCES dataOther / mixed grade configurationNCES 250004600819Charter school
👥 S:T ratio 66
🌟 Gifted program 30
🎓 Counselors 90
📋 Attendance 38
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Prospect Hill Academy Charter School earns 56/100 on the Resource Investment Index, with class sizes smaller than 93% of Massachusetts schools.
- #1 of 15
- schools in Cambridge · Resource Index
- 56
- Resource Index · Higher
- 8.4:1
- small classes for Massachusetts
- 890
- students enrolled
Prospect Hill Academy Charter School has class sizes smaller than 93% of Massachusetts schools. Computed live against every Massachusetts school reporting to NCES.
By Resource Investment Index, Prospect Hill Academy Charter School ranks #1 of 15 schools in Cambridge, MA.
School address
NCES ID 250004600819 Verify on NCES CCD record →
Teachers (FTE)
106.0
Federal CCD staff survey
Students per teacher
8.4:1
vs 12.3:1 Massachusetts avg
-32% vs state
Student-teacher ratio in context
How Prospect Hill Academy Charter School compares with Massachusetts and U.S. medians
What stands out at Prospect Hill Academy Charter School
Prospect Hill Academy Charter School is a large charter combined-grade school in Cambridge, Massachusetts, enrolling 890 students.
Classes run notably small here: at 8.4:1, Prospect Hill Academy Charter School is leaner than roughly 93% of Massachusetts schools and 32% under the state's 12.3:1 norm, more adult attention per pupil than most peers.
By headcount it is one of the larger campuses in Massachusetts, bigger than 90% of state schools at 890 students.
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 African American (56%) and Hispanic or Latino (23%) (diversity index 62/100).
Counselor coverage is strong, about 52 students per counselor, inside the American School Counselor Association's recommended 250:1.
Attendance runs somewhat below the norm, with 24.6% of students chronically absent per the 2021-22 civil-rights collection.
The surrounding Prospect Hill Academy Charter (District) spends $27,204 per pupil, 21% above the Massachusetts average, a better-resourced district than most.
Among Cambridge's public schools, it stands alongside Amigos School (413 students): Prospect Hill Academy Charter School is larger than that campus by headcount and runs leaner classes (8.4:1 vs 10.9:1).
Prospect Hill Academy Charter (District) is a single-school charter district, so Prospect Hill Academy 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 Prospect Hill Academy Charter School compares
Prospect Hill Academy 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 | 8.4:1 | ▼ 32% | 12.3:1 | 15.7:1 |
| Enrollment | 890 | top 10% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
8.4:1
Leaner classes than 94% of US schools, among the more generously staffed nationally.
890
Bigger than 89% of US schools by enrollment, a large campus nationally.
Equity indicators (what these measure)
Staffing depth
8.4:1
students per teacher
- 32% below state mean
Top 7% in Massachusetts - lower ratio than 93% of state schools
Well under the widely cited 15:1 individualized-attention benchmark, among the leaner class loads nationally.
Engagement
24.6%
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
$27,204
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
Counselors17.0 FTE
Per 52 students, the combined health-and-guidance staffing load for this school.
Discipline context
24
in-school suspensions + 53 out-of-school
Suspension rate: 2.7 per 100 students. Combined in-school and out-of-school rate: 8.7 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 56.2%
Hispanic or Latino 22.8%
White 9.7%
Asian 5.7%
Two or More 5.2%
American Indian / Alaska Native 0.3%
Native Hawaiian / Pacific Islander 0.1%
Largest group: African American at 56.2% of enrollment.
Student-body diversity index 61.7/100
Simpson diversity index - at 61.7, Prospect Hill Academy Charter School is more mixed than the Massachusetts school average of 47.3.
Programs
AP courses offered 12
Funding & spending
District-wide per-pupil expenditure for Prospect Hill Academy Charter (District), which includes Prospect Hill Academy Charter School.
$27,204
Per student
+21%
vs Massachusetts
Avg $22,458
+64%
vs U.S.
Avg $16,593
Revenue mix
Local 81.9%
State 9.1%
Federal 8.9%
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 Cambridge
6 comparable other schools (grades Mixed) serving the same city.
Amigos School
Standard public school
413 students 10.9:1 students per teacher
King Open
Alternative education program
391 students 10:1 students per teacher
Graham and Parks
Alternative education program
367 students 10.5:1 students per teacher
Maria L. Baldwin
Standard public school
360 students 10.3:1 students per teacher
Benjamin Banneker Charter Public School
Standard public school
352 students 17.6:1 students per teacher
Martin Luther King Jr.
Standard public school
340 students 9.7:1 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 (~890 students)
Next steps
Verify locally before acting on Prospect Hill Academy Charter School's federal record.
- Compare Prospect Hill Academy Charter School against another school. Compare schools
- Prospect Hill Academy Charter (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 Prospect Hill Academy Charter School
How many students attend Prospect Hill Academy Charter School?
Prospect Hill Academy Charter School has 890 students enrolled. It is a public school in Cambridge, MA.
What is the student-teacher ratio at Prospect Hill Academy Charter School?
The student-teacher ratio at Prospect Hill Academy Charter School is 8.4:1, which is 32% lower than the Massachusetts average of 12.3:1 and 46% 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 Prospect Hill Academy Charter School?
The largest demographic group at Prospect Hill Academy Charter School is African American at 56.2% of enrollment, in Cambridge, MA. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 61.7/100.
What is the Resource Investment Index for Prospect Hill Academy Charter School?
Prospect Hill Academy Charter School has a Resource Investment Index of 56/100 (higher 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 Prospect Hill Academy Charter School rank among schools in Cambridge?
By Resource Investment Index, Prospect Hill Academy Charter School ranks #1 of 15 schools in Cambridge, MA. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all schools in Cambridge on the city page.
Is Prospect Hill Academy Charter School a good school?
Prospect Hill Academy Charter School earns 56/100 on the Resource Investment Index, with class sizes smaller than 93% 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 Prospect Hill Academy Charter (District)?
None; Prospect Hill Academy Charter (District) is a single-school charter district, and Prospect Hill Academy Charter School is its only campus.
Related tools
Compare schools
Side-by-side comparison tool
Schools in Massachusetts
All public schools in Massachusetts
Prospect Hill Academy Charter (District)
All schools in this district
Schools in Cambridge
All schools in this city
School districts
Ranked by enrollment & spending
Rankings
Best schools by state & type
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.