- Enrollment
- 243
- Students per teacher
- 11:1
- Resource Index
- 29/100
High school (grades 9-12) · Clayton, NY
Thousand Islands High School
Federal NCES profile for Thousand Islands High School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 37/100.
2024-25 NCES dataHigh school (grades 9-12)NCES 360765000548
👥 S:T ratio 45
🌟 Gifted program 30
🎓 Counselors 74
📋 Attendance 1
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Thousand Islands High School earns 37/100 on the Resource Investment Index, with class sizes larger than 79% of New York schools. It is also less racially and ethnically mixed than most New York schools.
- #2 of 3
- public schools in Clayton · Resource Index
- 37
- Resource Index · Typical
- 13.8:1
- large classes for New York
- 42.1%
- free-lunch eligible
Thousand Islands High School has class sizes larger than 79% of New York schools. Computed live against every New York school reporting to NCES.
By Resource Investment Index, Thousand Islands High School ranks #2 of 3 public schools in Clayton, NY.
School address
District: Thousand Islands Central School District · New York
NCES ID 360765000548 Verify on NCES CCD record →
CCD year-over-year · 2022-23 → 2023-24
+6 students YoY
Thousand Islands High School held near 253 students from 2022-23 to 2023-24 (+6 headcount).
Teacher FTE held 19.9 → 19.9 across the same CCD years.
Source: NCES Common Core of Data public-school universe (2022-23, 2023-24).
Steady CCD campus
+6 students YoY 360765000548 · Clayton, NY High · SMALL · TRAD
262 enr · 13.8:1 · 42.1% lunch · RII 37
Nearest enrollment peer: Guardino Elementary School (243 students)
Thousand Islands High School held near 253 students from 2022-23 to 2023-24 (+6 headcount). Teacher FTE held 19.9 → 19.9 across the same CCD years. Read with this school → · District book → · New York schools → · Find another →
Thousand Islands High School in the enrollment neighbourhood
Fall enrollment among this campus and nearest district peers
- This school
Thousand Islands High School
262 students
- Guardino Eleme
Guardino Elementary School
243 students
- Thousand Islan
Thousand Islands Middle School
185 students
- Bashaw Element
Bashaw Elementary School
109 students
What this shows Thousand Islands High School reports 262 students on the CCD universe file.
How Thousand Islands High School compares
Thousand Islands 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 | 13.8:1 | ▲ 17% | 11.8:1 | 15.7:1 |
| Free-lunch eligible | 42.1% | ▼ 25% | 56.2% | 51.7% |
| Enrollment | 262 | top 82% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
13.8:1
Leaner classes than 59% of US schools, a middle-of-the-pack class size.
262
Bigger than 27% of US schools by enrollment, mid-sized for the country.
Equity indicators methodology
Economic need
42.1%
free-lunch eligible
- 25% below the New York average of 56.2%
Above the 40% Title I schoolwide threshold; federal funds support the whole school, not individual students.
Staffing depth
13.8:1
students per teacher
- 17% above state mean
Top 79% in New York - lower ratio than 21% of state schools
Close to the 15:1 benchmark most often cited for individualized attention.
Engagement
39.7%
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
$22,996
per pupil, district-wide
- below 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
Counselors2.0 FTE
Per 131 students, the combined health-and-guidance staffing load for this school.
Discipline context
15
in-school suspensions + 9 out-of-school
Suspension rate: 5.7 per 100 students. Combined in-school and out-of-school rate: 9.2 per 100 students. Reported via the Civil Rights Data Collection.
Student demographics
White 90.1%
Hispanic or Latino 4.6%
Two or More 4.2%
Asian 0.8%
American Indian / Alaska Native 0.4%
Largest group: White at 90.1% of enrollment.
Student-body diversity index 18.4/100
Simpson diversity index - at 18.4, Thousand Islands High School is less mixed than the New York school average of 45.5.
Programs
AP courses offered 2
District finance for Thousand Islands Central School District reports $22,996 per pupil (NCES F-33) - open the district page for the full revenue mix.
How Thousand Islands High School Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Guardino Elementary School | Similar size | Similar economic need | Lower S:T ratio |
| Thousand Islands Middle School | Smaller | Similar economic need | Lower S:T ratio |
| Bashaw Elementary School | Smaller | Similar economic need | Lower S:T ratio |
Comparisons are relative to Thousand Islands High School's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 185
- Students per teacher
- 9.3:1
- Resource Index
- 41/100
- Enrollment
- 109
- Students per teacher
- 12.1:1
- Resource Index
- 33/100
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 (~262 students)
Frequently asked questions about Thousand Islands High School
How many students attend Thousand Islands High School?
Thousand Islands High School has 262 students enrolled. It is a high school in Clayton, NY. CCD year-over-year: 247 (2022-23) → 253 (2023-24), nearly flat (+6).
What is the student-teacher ratio at Thousand Islands High School?
The student-teacher ratio at Thousand Islands High School is 13.8:1, which is 17% higher than the New York average of 11.8:1 and 12% lower than the national average of 15.7:1.
What percentage of students receive free lunch at Thousand Islands High School?
42.1% of students at Thousand Islands High School are eligible for free lunch, compared to the New York average of 56.2%.
What is the racial and ethnic makeup of Thousand Islands High School?
The largest demographic group at Thousand Islands High School is White at 90.1% of enrollment, in Clayton, NY.
What is the Resource Investment Index for Thousand Islands High School?
Thousand Islands High School has a Resource Investment Index of 37/100 (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 Thousand Islands High School rank among public schools in Clayton?
By Resource Investment Index, Thousand Islands High School ranks #2 of 3 public schools in Clayton, NY. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking.
What other schools are in Thousand Islands Central School District?
Besides Thousand Islands High School, Thousand Islands Central School District also operates Guardino Elementary School (243 students), Thousand Islands Middle School (185 students), and Bashaw Elementary School (109 students). See the Thousand Islands Central School District district page for the complete list.