Enrollment
1,571
Florida · 2024-25 NCES data
Other / mixed grade configuration · Key Biscayne, FL
Mast Academy
Federal NCES profile for Mast Academy, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 48/100.
2024-25 NCES dataOther / mixed grade configurationNCES 120039002809
👥 S:T ratio 20
🌟 Gifted program 70
🎓 Counselors 37
📋 Attendance 66
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Mast Academy earns 48/100 on the Resource Investment Index, with class sizes larger than 77% of Florida schools.
- 48
- Resource Index · Typical
- 20.1:1
- large classes for Florida
- 11.5%
- free-lunch eligible
- 1,571
- students enrolled
Mast Academy has class sizes larger than 77% of Florida schools. Computed live against every Florida school reporting to NCES.
School address
District: Miami-Dade · Florida
NCES ID 120039002809 Verify on NCES CCD record →
Teachers (FTE)
78.0
Federal CCD staff survey
Students per teacher
20.1:1
vs 17.8:1 Florida avg
+13% vs state
Free-lunch eligible
11.5%
vs 52.0% Florida avg
-78% vs state
Student-teacher ratio in context
How Mast Academy compares with Florida and U.S. medians
What stands out at Mast Academy
Mast Academy is a lower-poverty, large combined-grade school in Key Biscayne, Florida, enrolling 1,571 students.
Class loads run somewhat heavier than typical: 20.1:1 puts it in the larger third of Florida schools by student-teacher ratio.
Comparatively few students face economic hardship here, 11.5% free-meal eligibility runs 78% below the Florida average.
By headcount it is one of the larger campuses in Florida, bigger than 92% of state schools at 1,571 students.
Its Resource Investment Index lands in the upper third of 3,996 scored Florida schools.
Among 126 similarly sized, similarly resourced-need Florida schools statewide, it ranks #13, a top-tier result once campus size and economic need are matched.
Its student body is led by Hispanic or Latino (72%) and White (24%) (diversity index 42/100).
Counselor coverage runs a bit thin, about 314 students per counselor, somewhat past the ASCA-recommended 250:1 benchmark.
13.7% of students were chronically absent in the 2021-22 collection, in line with the post-pandemic national range.
Its district draws 19.5% of revenue from federal sources, an above-typical federal share that tends to track a higher-need student population.
Miami-Dade also operates John a. Ferguson Senior High (4,291 students) and Coral Reef Senior High School (3,399 students) alongside Mast Academy.
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 Mast Academy compares
Mast Academy on the metrics families compare, against Florida and U.S. means.
| Metric | This school | vs Florida | Florida avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 20.1:1 | ▲ 13% | 17.8:1 | 15.7:1 |
| Free-lunch eligible | 11.5% | ▼ 78% | 52.0% | 51.7% |
| Enrollment | 1,571 | top 8% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
20.1:1
Leaner classes than 16% of US schools, heavier class loads than most.
1,571
Bigger than 96% of US schools by enrollment, a large campus nationally.
Equity indicators (what these measure)
Economic need
11.5%
free-lunch eligible
- 78% below the Florida average of 52.0%
Below the 40% Title I threshold, among the lower-need profiles in the state; federal aid targets individual qualifying students rather than schoolwide programs.
Staffing depth
20.1:1
students per teacher
- 13% above state mean
Top 77% in Florida - lower ratio than 23% of state schools
Above 20:1, running heavier than the typical U.S. public school; staffing is comparatively stretched.
Engagement
13.7%
chronically absent (missed 10%+ of school days)
In the 10-15% range, above the pre-pandemic national baseline but within the broader post-pandemic picture.
Funding equity
$12,258
per pupil, district-wide
- above Florida avg of $11,167
Well below the U.S. average per-pupil spend, a notably leaner funding position that may affect programs, facilities, and staffing.
Support staff
Counselors5.0 FTE
Per 314 students, the combined health-and-guidance staffing load for this school.
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
Hispanic or Latino 72.4%
White 24.0%
Asian 1.2%
African American 1.1%
Two or More 1.1%
Native Hawaiian / Pacific Islander 0.1%
Largest group: Hispanic or Latino at 72.4% of enrollment.
Student-body diversity index 41.8/100
Simpson diversity index - at 41.8, Mast Academy is less mixed than the Florida school average of 52.3.
Programs
AP courses offered 21
Gifted & talented Yes
Funding & spending
District-wide per-pupil expenditure for Miami-Dade, which includes Mast Academy.
$12,258
Per student
+10%
vs Florida
Avg $11,167
-26%
vs U.S.
Avg $16,593
Revenue mix
Local 57.2%
State 23.3%
Federal 19.5%
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 Mast Academy Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| John a. Ferguson Senior High | Larger | Higher economic need | Higher S:T ratio |
| Coral Reef Senior High School | Larger | Higher economic need | Higher S:T ratio |
| South Dade Senior High School | Larger | Higher economic need | Higher S:T ratio |
| Miami Senior High School | Larger | Higher economic need | Higher S:T ratio |
| Hialeah Gardens Senior High School | Larger | Higher economic need | Higher S:T ratio |
Comparisons are relative to Mast Academy's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 4,291
- Students per teacher
- 26.3:1
- Resource Index
- 23/100
- Enrollment
- 3,399
- Students per teacher
- 27:1
- Resource Index
- 37/100
- Enrollment
- 3,382
- Students per teacher
- 27.7:1
- Resource Index
- 23/100
- Enrollment
- 3,100
- Students per teacher
- 25.8:1
- Resource Index
- 23/100
- Enrollment
- 3,009
- Students per teacher
- 28.4:1
- Resource Index
- 23/100
Similar other schools statewide
Matched by enrollment size and by staffing ratio across all of Florida, not just this city - a different peer set than the local comparisons above.
Similar enrollment (~1,571 students)
Next steps
Verify locally before acting on Mast Academy's federal record.
- Compare Mast Academy against another school. Compare schools
- Miami-Dade'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 Mast Academy
How many students attend Mast Academy?
Mast Academy has 1,571 students enrolled. It is a public school in Key Biscayne, FL.
What is the student-teacher ratio at Mast Academy?
The student-teacher ratio at Mast Academy is 20.1:1, which is 13% higher than the Florida average of 17.8:1 and 28% higher than the national average of 15.7:1.
What percentage of students receive free lunch at Mast Academy?
11.5% of students at Mast Academy are eligible for free lunch, compared to the Florida average of 52.0%.
What is the racial and ethnic makeup of Mast Academy?
The largest demographic group at Mast Academy is Hispanic or Latino at 72.4% of enrollment, in Key Biscayne, FL.
What is the Resource Investment Index for Mast Academy?
Mast Academy has a Resource Investment Index of 48/100 (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).
Is Mast Academy a good school?
Mast Academy earns 48/100 on the Resource Investment Index, with class sizes larger than 77% of Florida 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 Miami-Dade?
Besides Mast Academy, Miami-Dade also operates John a. Ferguson Senior High (4,291 students), Coral Reef Senior High School (3,399 students), and South Dade Senior High School (3,382 students). See the Miami-Dade 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.