Enrollment
856
New York · 2024-25 NCES data
High school (grades 9-12) · Massapequa, NY
Plainedge Senior High School
Federal NCES profile for Plainedge Senior High School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 48/100.
2024-25 NCES dataHigh school (grades 9-12)NCES 362319003248
👥 S:T ratio 51
📚 AP courses 70
🌟 Gifted program 30
🎓 Counselors 66
📋 Attendance 23
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Plainedge Senior High School earns 48/100 on the Resource Investment Index, with class sizes near the New York median.
- #3 of 3
- high schools in Massapequa · Resource Index
- 48
- Resource Index · Typical
- 12.2:1
- students per teacher
- 11.6%
- free-lunch eligible
Plainedge Senior High School has class sizes near the New York median. Computed live against every New York school reporting to NCES.
By Resource Investment Index, Plainedge Senior High School ranks #3 of 3 high schools in Massapequa, NY.
School address
District: Plainedge Union Free School District · New York
NCES ID 362319003248 Verify on NCES CCD record →
Teachers (FTE)
70.0
Federal CCD staff survey
Students per teacher
12.2:1
vs 11.8:1 New York avg
+3% vs state
Free-lunch eligible
11.6%
vs 56.2% New York avg
-79% vs state
Student-teacher ratio in context
How Plainedge Senior High School compares with New York and U.S. medians
What stands out at Plainedge Senior High School
Plainedge Senior High School is a lower-poverty, large high school in Massapequa, New York, enrolling 856 students.
Class loads run somewhat heavier than typical: 12.2:1 puts it in the larger third of New York schools by student-teacher ratio.
Comparatively few students face economic hardship here, 11.6% free-meal eligibility runs 79% below the New York average.
Enrollment of 856 puts it in the larger third of New York schools by headcount.
Its Resource Investment Index sits near the middle of the pack among 4,801 scored New York schools.
Among 306 similarly sized, similarly resourced-need New York schools statewide, it ranks #234, in the lower tier once campus size and economic need are matched.
Its student body is predominantly White (80% of enrollment) (diversity index 34/100).
On the academic-pipeline side it reports 14 Advanced Placement courses.
Counselor coverage is strong, about 171 students per counselor, inside the American School Counselor Association's recommended 250:1.
Chronic absenteeism is elevated: 31.0% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
Plainedge Union Free School District also operates Plainedge Middle School (661 students) and Charles E Schwarting School (524 students) alongside Plainedge Senior High 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 Plainedge Senior High School compares
Plainedge Senior High School on the metrics families compare, against New York and U.S. means.
| Metric | This school | vs New York | New York avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 12.2:1 | ▲ 3% | 11.8:1 | 15.7:1 |
| Free-lunch eligible | 11.6% | ▼ 79% | 56.2% | 51.7% |
| Enrollment | 856 | top 12% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
12.2:1
Leaner classes than 74% of US schools, among the more generously staffed nationally.
856
Bigger than 88% of US schools by enrollment, a large campus nationally.
Equity indicators (what these measure)
Economic need
11.6%
free-lunch eligible
- 79% below the New York average of 56.2%
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
12.2:1
students per teacher
- 3% above state mean
Top 62% in New York - lower ratio than 38% of state schools
Well under the widely cited 15:1 individualized-attention benchmark, among the leaner class loads nationally.
Engagement
31.0%
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
$29,761
per pupil, district-wide
- above New York avg of $26,410
Well above the U.S. public-school average, reflecting substantially higher local or state investment per enrolled student.
Support staff
Counselors5.0 FTE
Per 171 students, the combined health-and-guidance staffing load for this school.
Discipline context
29
in-school suspensions + 30 out-of-school
Suspension rate: 3.4 per 100 students. Combined in-school and out-of-school rate: 6.9 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
White 80.4%
Hispanic or Latino 9.7%
Asian 6.9%
African American 1.6%
Two or More 1.3%
American Indian / Alaska Native 0.1%
Largest group: White at 80.4% of enrollment.
Student-body diversity index 33.9/100
Simpson diversity index - at 33.9, Plainedge Senior High School is less mixed than the New York school average of 45.5.
Programs
AP courses offered 14
Funding & spending
District-wide per-pupil expenditure for Plainedge Union Free School District, which includes Plainedge Senior High School.
$29,761
Per student
+13%
vs New York
Avg $26,410
+79%
vs U.S.
Avg $16,593
Revenue mix
Local 64.3%
State 30.0%
Federal 5.7%
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 Plainedge Senior High School Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Plainedge Middle School | Similar size | Similar economic need | Lower S:T ratio |
| Charles E Schwarting School | Smaller | Similar economic need | Higher S:T ratio |
| John H West School | Smaller | Similar economic need | Similar S:T ratio |
| Eastplain School | Smaller | Similar economic need | Higher S:T ratio |
Comparisons are relative to Plainedge Senior High School's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 661
- Students per teacher
- 10.7:1
- Resource Index
- 51/100
- Enrollment
- 524
- Students per teacher
- 14.6:1
- Resource Index
- 47/100
- Enrollment
- 473
- Students per teacher
- 12.4:1
- Resource Index
- 45/100
- Enrollment
- 445
- Students per teacher
- 17.1:1
- Resource Index
- 40/100
Similar high schools statewide
Matched by enrollment size and by staffing ratio across all of New York, not just this city - a different peer set than the local comparisons above.
Similar enrollment (~856 students)
Next steps
Verify locally before acting on Plainedge Senior High School's federal record.
- Compare Plainedge Senior High School against another school. Compare schools
- Plainedge Union Free 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 Plainedge Senior High School
How many students attend Plainedge Senior High School?
Plainedge Senior High School has 856 students enrolled. It is a high school in Massapequa, NY.
What is the student-teacher ratio at Plainedge Senior High School?
The student-teacher ratio at Plainedge Senior High School is 12.2:1, which is 3% higher than the New York average of 11.8:1 and 22% lower than the national average of 15.7:1.
What percentage of students receive free lunch at Plainedge Senior High School?
11.6% of students at Plainedge Senior High School are eligible for free lunch, compared to the New York average of 56.2%.
What is the racial and ethnic makeup of Plainedge Senior High School?
The largest demographic group at Plainedge Senior High School is White at 80.4% of enrollment, in Massapequa, NY.
What is the Resource Investment Index for Plainedge Senior High School?
Plainedge Senior High School has a Resource Investment Index of 48/100 (typical reported resources relative to schools nationally) based on 5 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 Plainedge Senior High School rank among high schools in Massapequa?
By Resource Investment Index, Plainedge Senior High School ranks #3 of 3 high schools in Massapequa, NY. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all high schools in Massapequa on the city page.
Is Plainedge Senior High School a good school?
Plainedge Senior High School earns 48/100 on the Resource Investment Index, with class sizes near the New York 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.
What other schools are in Plainedge Union Free School District?
Besides Plainedge Senior High School, Plainedge Union Free School District also operates Plainedge Middle School (661 students), Charles E Schwarting School (524 students), and John H West School (473 students). See the Plainedge Union Free School District 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.