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 school year, there are 4 public schools serving 822 students in Thousand Islands Central School District. This district's average testing ranking is 8/10, which is in the top 30% of public schools in New York.
Public Schools in Thousand Islands Central School District have an average math proficiency score of 67% (versus the New York public school average of 52%), and reading proficiency score of 52% (versus the 49% statewide average).
Minority enrollment is 6% of the student body (majority Hispanic), which is less than the New York public school average of 60% (majority Hispanic).
Overview
This School District
This State (NY)
# Schools
4 Schools
4,819 Schools
# Students
822 Students
2,508,712 Students
# Teachers
70 Teachers
217,359 Teachers
Student-Teacher Ratio
12:1
12:1
Student By Grade
District Rank
Thousand Islands Central School District, which is ranked #294 of all 1,009 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%
10%
% Hispanic
2%
30%
% Black
n/a
16%
% White
94%
40%
% 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 $31,307. 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 $32,183. 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
$31,307
Spending / Student
$24,786
$32,183
Best Thousand Islands Central School District Public Schools (2025)
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%
Rank: #22.
Thousand Islands Middle School
(Math: 75-79% | Reading: 64%)
Rank:
Rank:
9/
Top 20%10
8487 County Rt 9
Clayton, NY 13624
(315) 686-5594
Clayton, NY 13624
(315) 686-5594
Gr: 6-8 | 192 students Student-teacher ratio: 11:1 Minority enrollment: 7%
Rank: #33.
Bashaw Elementary School
(Math: 50-59% | Reading: 40-49%)
Rank:
Rank:
5/
Bottom 50%10
410 S Esselstyne
Clayton, NY 13624
(315) 654-2142
Clayton, NY 13624
(315) 654-2142
Gr: PK-5 | 114 students Student-teacher ratio: 13:1 Minority enrollment: 2%
Rank: #44.
Guardino Elementary School
(Math: 50-54% | Reading: 30-34%)
Rank:
Rank:
4/
Bottom 50%10
600 High St
Clayton, NY 13624
(315) 686-5594
Clayton, NY 13624
(315) 686-5594
Gr: PK-5 | 263 students Student-teacher ratio: 11:1 Minority enrollment: 6%
Frequently Asked Questions
How many schools belong to Thousand Islands Central School District?
Thousand Islands Central School District manages 4 public schools serving 822 students.
What is the rank of Thousand Islands Central School District?
Thousand Islands Central School District is ranked #294 out of 1,009 school districts in New York (top 30%) based off of combined math and reading proficiency testing data for the 2022-2023 school year. This district ranks in the top 20% of New York school districts for: Highest graduation rate (Top 20%)
What is the racial composition of students in Thousand Islands Central School District?
94% of Thousand Islands Central School District students are White, 3% of students are Two or more races, 2% of students are Hispanic, and 1% of students are Asian.
What is the student/teacher ratio of Thousand Islands Central School District?
Thousand Islands Central School District has a student/teacher ratio of 12:1, which is higher than the New York state average of 11:1.
What is Thousand Islands Central School District's spending/student ratio?
The school district's spending/student of $24,786 is less than the state median of $32,183. The school district spending/student has stayed relatively flat over four school years.
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