Serving 253 students in grades 9-12, Thousand Islands High School ranks in the top 10% of all schools in New York for overall test scores (math proficiency is top 10%, and reading proficiency is top 10%).
The percentage of students achieving proficiency in math is 85-89% (which is higher than the New York state average of 46%). The percentage of students achieving proficiency in reading/language arts is ≥80% (which is higher than the New York state average of 49%).
The student:teacher ratio of 13:1 is higher than the New York state level of 11:1.
Minority enrollment is 9% of the student body (majority Hispanic), which is lower than the New York state average of 60% (majority Hispanic).
Quick Stats (2025)
- Grades: 9-12
- Enrollment: 253 students
- Student:Teacher Ratio: 13:1
- Minority Enrollment: 9%
- Graduation Rate: 85-89% (Btm 50% in NY)
- Overall Testing Rank: Top 10%
- Math Proficiency: 85-89% (Top 10%)
- Reading Proficiency: ≥80% (Top 10%)
- Science Proficiency: 90-94% (Top 20%)
- Source: National Center for Education Statistics (NCES), NY Dept. of Education
Top Rankings
Thousand Islands High School ranks among the top 20% of public schools in New York for:
Category
Attribute
Overall Rank
Math Proficiency
Reading/Language Arts Proficiency
Science Proficiency
Community Size
School Overview
Thousand Islands High School's student population of 253 students has declined by 15% over five school years.
The teacher population of 20 teachers has declined by 20% over five school years.
Grades Offered
Grades 9-12
(Supplemental Virtual)
(Supplemental Virtual)
Total Students
253 students
Gender %
Total Classroom Teachers
20 teachers
School Rankings
Thousand Islands High School ranks within the top 10% of all 4,377 schools in New York (based off of combined math and reading proficiency testing data).
The diversity score of Thousand Islands High School is 0.17, which is less than the diversity score at state average of 0.72. The school's diversity has stayed relatively flat over five school years.
Overall Testing Rank
#370 out of 4377 schools
(Top 10%)
(Top 10%)
Math Test Scores (% Proficient)
85-89%
46%
Reading/Language Arts Test Scores (% Proficient)
≥80%
49%
Science Test Scores (% Proficient)
90-94%
78%
Student : Teacher Ratio
13:1
11:1
American Indian
1%
1%
Asian
n/a
10%
Hispanic
4%
30%
Black
n/a
16%
White
91%
40%
Hawaiian
n/a
n/a
Two or more races
4%
3%
All Ethnic Groups
Graduation Rate
85-89%
87%
Participates in the National School Lunch Program (NSLP)
Yes
Eligible for Free Lunch
39%
54%
Eligible for Reduced Lunch
2%
3%
School Statewide Testing
School District Name
Source: National Center for Education Statistics (NCES), NY Dept. of Education
Profile last updated: 02/09/2025
Frequently Asked Questions
What is Thousand Islands High School's ranking?
Thousand Islands High School is ranked #370 out of 4,377 schools, which ranks it among the top 10% of public schools in New York.
What schools are Thousand Islands High School often compared to?
Thousand Islands High Schoolis often viewed alongside schools like Alexandria Central High School by visitors of our site.
What percent of students have achieved state testing proficiency in math and reading?
85-89% of students have achieved math proficiency (compared to the 46% NY state average), while ≥80% of students have achieved reading proficiency (compared to the 49% NY state average).
What is the graduation rate of Thousand Islands High School?
The graduation rate of Thousand Islands High School is 85-89%, which is lower than the New York state average of 87%.
How many students attend Thousand Islands High School?
253 students attend Thousand Islands High School.
What is the racial composition of the student body?
91% of Thousand Islands High School students are White, 4% of students are Hispanic, 4% of students are Two or more races, and 1% of students are American Indian.
What is the student:teacher ratio of Thousand Islands High School?
Thousand Islands High School has a student ration of 13:1, which is higher than the New York state average of 11:1.
What grades does Thousand Islands High School offer ?
Thousand Islands High School offers enrollment in grades 9-12 (Supplemental Virtual).
What school district is Thousand Islands High School part of?
Thousand Islands High School is part of Thousand Islands Central School District.
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