- Enrollment
- 601
- Students per teacher
- 9.5:1
- Resource Index
- 57/100
High school (grades 9-12) · Islip, NY
Islip High School
Federal NCES profile for Islip 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 361554001324
👥 S:T ratio 61
🌟 Gifted program 30
🎓 Counselors 64
📋 Attendance 38
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Islip High School earns 48/100 on the Resource Investment Index, with class sizes smaller than 75% of New York schools.
- #4 of 5
- public schools in Islip · Resource Index
- 48
- Resource Index · Typical
- 9.7:1
- small classes for New York
- 28.9%
- free-lunch eligible
Islip High School has class sizes smaller than 75% of New York schools. Computed live against every New York school reporting to NCES.
By Resource Investment Index, Islip High School ranks #4 of 5 public schools in Islip, NY.
School address
District: Islip Union Free School District · New York
NCES ID 361554001324 Verify on NCES CCD record →
CCD year-over-year · 2022-23 → 2023-24
-1 students YoY
Islip High School held near 891 students from 2022-23 to 2023-24 (-1 headcount).
Teacher FTE added 92.5 → 98.5 across the same CCD years.
Source: NCES Common Core of Data public-school universe (2022-23, 2023-24).
Steady CCD campus
-1 students YoY 361554001324 · Islip, NY High · MID · TRAD
890 enr · 9.7:1 · 28.9% lunch · RII 48
Nearest enrollment peer: Islip Middle School (601 students)
Islip High School held near 891 students from 2022-23 to 2023-24 (-1 headcount). Teacher FTE added 92.5 → 98.5 across the same CCD years. Read with this school → · District book → · New York schools → · Find another →
Islip High School in the enrollment neighbourhood
Fall enrollment among this campus and nearest district peers
- This school
Islip High School
890 students
- Islip Middle S
Islip Middle School
601 students
- Commack Road E
Commack Road Elementary School
422 students
- Wing Elementar
Wing Elementary School
373 students
- Maud S Sherwoo
Maud S Sherwood Elementary School
366 students
What this shows Islip High School reports 890 students on the CCD universe file.
How Islip High School compares
Islip High School held steady on CCD headcount: ratios and free-lunch share vs New York and U.S. means.
| Metric | This school | vs New York | New York avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 9.7:1 | ▼ 18% | 11.8:1 | 15.7:1 |
| Free-lunch eligible | 28.9% | ▼ 49% | 56.2% | 51.7% |
| Enrollment | 890 | top 11% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
9.7:1
Leaner classes than 90% of US schools, among the more generously staffed nationally.
890
Bigger than 89% of US schools by enrollment, a large campus nationally.
Equity indicators methodology
Economic need
28.9%
free-lunch eligible
- 49% below the New York average of 56.2%
Below the 40% Title I threshold; federal aid targets individual qualifying students rather than schoolwide programs.
Staffing depth
9.7:1
students per teacher
- 18% below state mean
Top 25% in New York - lower ratio than 75% of state schools
Well under the widely cited 15:1 individualized-attention benchmark, among the leaner class loads nationally.
Engagement
24.7%
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
$32,807
per pupil, district-wide
- above New York avg of $28,120
Well above the U.S. public-school average, reflecting substantially higher local or state investment per enrolled student.
Support staff
Counselors5.0 FTE
Per 178 students, the combined health-and-guidance staffing load for this school.
Discipline context
21
in-school suspensions + 35 out-of-school
Suspension rate: 2.4 per 100 students. Combined in-school and out-of-school rate: 6.3 per 100 students. Reported via the Civil Rights Data Collection. Includes 2 expulsions.
Student demographics
White 46.5%
Hispanic or Latino 37.4%
African American 7.4%
Asian 5.6%
Two or More 2.7%
American Indian / Alaska Native 0.2%
Native Hawaiian / Pacific Islander 0.1%
Largest group: White at 46.5% of enrollment.
Student-body diversity index 63.5/100
Simpson diversity index - at 63.5, Islip High School is more mixed than the New York school average of 45.5.
Programs
AP courses offered 17
District finance for Islip Union Free School District reports $32,807 per pupil (NCES F-33) - open the district page for the full revenue mix.
How Islip High School Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Islip Middle School | Smaller | Similar economic need | Similar S:T ratio |
| Commack Road Elementary School | Smaller | Higher economic need | Higher S:T ratio |
| Wing Elementary School | Smaller | Similar economic need | Higher S:T ratio |
| Maud S Sherwood Elementary School | Smaller | Similar economic need | Higher S:T ratio |
Comparisons are relative to Islip High School's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 422
- Students per teacher
- 11.4:1
- Resource Index
- 49/100
- Enrollment
- 373
- Students per teacher
- 11.3:1
- Resource Index
- 41/100
- Enrollment
- 366
- Students per teacher
- 12.2:1
- Resource Index
- 63/100
Nationwide high schools with similar size or staffing
Out-of-state peers matched by enrollment and by student-teacher ratio, not the same-city or same-district lists above.
Similar enrollment (~890 students)
Frequently asked questions about Islip High School
How many students attend Islip High School?
Islip High School has 890 students enrolled. It is a high school in Islip, NY. CCD year-over-year: 892 (2022-23) → 891 (2023-24), nearly flat (-1).
What is the student-teacher ratio at Islip High School?
The student-teacher ratio at Islip High School is 9.7:1, which is 18% lower than the New York average of 11.8:1 and 38% lower than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
What percentage of students receive free lunch at Islip High School?
28.9% of students at Islip High School are eligible for free lunch, compared to the New York average of 56.2%.
What is the racial and ethnic makeup of Islip High School?
The largest demographic group at Islip High School is White at 46.5% of enrollment, in Islip, NY. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 63.5/100.
What is the Resource Investment Index for Islip High School?
Islip High School has a Resource Investment Index of 48/100 (typical reported resources relative to schools nationally) based on 4 factors: student-teacher ratio, gifted-program reporting, counselor availability, chronic absenteeism. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Islip High School rank among public schools in Islip?
By Resource Investment Index, Islip High School ranks #4 of 5 public schools in Islip, NY. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all public schools in Islip on the city page.
What other schools are in Islip Union Free School District?
Besides Islip High School, Islip Union Free School District also operates Islip Middle School (601 students), Commack Road Elementary School (422 students), and Wing Elementary School (373 students). See the Islip Union Free School District district page for the complete list.