Top Rankings
Thousand Islands Central School District ranks among the top 20% of public school district in New York for:
Category
Attribute
Graduation Rate
Highest graduation rate (Top 20%)
For the 2025-26 school year, there is 1 public high school serving 253 students in Thousand Islands Central School District. This district's average high testing ranking is 9/10, which is in the top 20% of public high schools in New York.
Public High School in Thousand Islands Central School District have an average math proficiency score of 80% (versus the New York public high school average of 55%), and reading proficiency score of 80% (versus the 59% statewide average).
Public High School in Thousand Islands Central School District have a Graduation Rate of 92%, which is more than the New York average of 89%.
The school with highest graduation rate is Thousand Islands High School, with 90-94% graduation rate. Read more about public school graduation rate statistics in New York or national school graduation rate statistics.
Minority enrollment is 9% of the student body (majority Hispanic), which is less than the New York public high school average of 61% (majority Hispanic).
Overview
This School District
This State (NY)
# Schools
4 Schools
1,459 Schools
# Students
822 Students
947,121 Students
# Teachers
70 Teachers
84,923 Teachers
Student-Teacher Ratio
12:1
12:1
Student By Grade
District Rank
Thousand Islands Central School District, which is ranked #294 of all 1,008 school districts in New York (based off of combined math and reading proficiency testing data) for the 2022-2023 school year.
The school district's graduation rate of 92% has increased from 90-94% over five school years.
Overall District Rank
#257 out of 1017 school districts
(Top 30%)
(Top 30%)
Math Test Scores (% Proficient)
66%
52%
Reading/Language Arts Test Scores (% Proficient)
54%
49%
Science Test Scores (% Proficient)
80-84%
78%
Graduation Rate
92%
87%
Students by Ethnicity:
Diversity Score
0.12
0.72
% American Indian
n/a
1%
% Asian
1%
9%
% Hispanic
2%
30%
% Black
n/a
18%
% White
94%
39%
% Hawaiian
n/a
n/a
% Two or more races
3%
3%
All Ethnic Groups
District Revenue and Spending
The revenue/student of $27,948 in this school district is less than the state median of $31,324. The school district revenue/student has stayed relatively flat over four school years.
The school district's spending/student of $24,786 is less than the state median of $32,199. The school district spending/student has stayed relatively flat over four school years.
Total Revenue
$23 MM
$78,541 MM
Spending
$20 MM
$80,737 MM
Revenue / Student
$27,948
$31,324
Spending / Student
$24,786
$32,199
Best Thousand Islands Central School District Public High Schools (2025-26)
School
(Math and Reading Proficiency)
(Math and Reading Proficiency)
Location
Quick Facts
Rank: #11.
Thousand Islands High School
(Math: ≥80% | Reading: ≥80%)
Rank:
Rank:
10/
Top 10%10
8481 County Rt 9
Clayton, NY 13624
(315) 686-5594
Clayton, NY 13624
(315) 686-5594
Gr: 9-12 | 253 students Student-teacher ratio: 13:1 Minority enrollment: 9%
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