Notice: Undefined property: MultipleSchoolsModel::$total in /home/devsarath/workspace/psr/public_html/include/srn_lib/psr/controller/agency_schools.inc.php on line 182
Thousand Islands Central School District (2026) - Clayton, NY

Thousand Islands Central School District

8483 County Rt 9
Clayton, NY 13624-1000
(District boundaries shown in map)
8/
10
Top 30%

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 2026 school year, there are 4 public schools serving 799 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 53%), and reading proficiency score of 52% (versus the 49% statewide average).
Minority enrollment is 7% of the student body (majority Hispanic), which is less than the New York public school average of 61% (majority Hispanic).

Overview

This School District
This State (NY)
# Schools
4 Schools
4,810 Schools
# Students
799 Students
2,503,634 Students
# Teachers
69 Teachers
218,347 Teachers
Student-Teacher Ratio
12:1
12:1

Student By Grade

District Rank

Thousand Islands Central School District, which is ranked #295 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.
This School District
State Average (NY)
#257 out of 1017 school districts
(Top 30%)
66%
52%
54%
49%
80-84%
78%
92%
87%

Students by Ethnicity:

0.13
0.73
% American Indian
n/a
1%
% Asian
1%
10%
% Hispanic
3%
31%
% Black
n/a
15%
% White
93%
39%
% Hawaiian
n/a
n/a
% Two or more races
3%
4%
All Ethnic Groups

District Revenue and Spending

The revenue/student of $28,752 in this school district is less than the state median of $31,371. The school district revenue/student has grown by 7% over four school years.
The school district's spending/student of $25,499 is less than the state median of $32,248. The school district spending/student has stayed relatively flat over four school years.
This School District
This State (NY)
Total Revenue
$23 MM
$78,541 MM
Spending
$20 MM
$80,737 MM
Revenue / Student
$28,752
$31,371
Spending / Student
$25,499
$32,248

Best Thousand Islands Central School District Public Schools (2026)

School
(Math and Reading Proficiency)
Location
Quick Facts
Rank: #11.
Thousand Islands High School
(Math: ≥80% | Reading: ≥80%)
Rank:
10/
10
Top 10%
8481 County Rt 9
Clayton, NY 13624
(315) 686-5594
Gr: 9-12 | 262 students Student-teacher ratio: 12:1 Minority enrollment: 10%
Rank: #22.
Thousand Islands Middle School
(Math: 75-79% | Reading: 64%)
Rank:
9/
10
Top 20%
8487 County Rt 9
Clayton, NY 13624
(315) 686-5594
Gr: 6-8 | 185 students Student-teacher ratio: 12:1 Minority enrollment: 6%
Rank: #33.
Bashaw Elementary School
(Math: 50-59% | Reading: 40-49%)
Rank:
5/
10
Bottom 50%
410 S Esselstyne
Clayton, NY 13624
(315) 654-2142
Gr: PK-5 | 109 students Student-teacher ratio: 12:1 Minority enrollment: 7%
Rank: #44.
Guardino Elementary School
(Math: 50-54% | Reading: 30-34%)
Rank:
4/
10
Bottom 50%
600 High St
Clayton, NY 13624
(315) 686-5594
Gr: PK-5 | 243 students Student-teacher ratio: 11:1 Minority enrollment: 4%

Frequently Asked Questions

How many schools belong to Thousand Islands Central School District?
Thousand Islands Central School District manages 4 public schools serving 799 students.
What is the rank of Thousand Islands Central School District?
Thousand Islands Central School District is ranked #295 out of 1,008 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?
93% of Thousand Islands Central School District students are White, 3% of students are Hispanic, 3% of students are Two or more races, 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 $25,499 is less than the state median of $32,248. The school district spending/student has stayed relatively flat over four school years.

Recent Articles

AI Report Cards: Should Schools Evaluate AI Use?
AI Report Cards: Should Schools Evaluate AI Use?
Explore whether schools should assess student AI use, the benefits, risks, and what responsible AI report cards could look like in 2026.
The Parent’s Guide to School Cell Phone Bans in 2026
The Parent’s Guide to School Cell Phone Bans in 2026
Learn how school cell phone bans work in 2026, why districts are adopting them, and what parents should expect.
Parental Involvement in Public Schools: 2026 Update
Parental Involvement in Public Schools: 2026 Update
Explore the latest 2026 trends, research, and strategies shaping parental involvement in public schools and student success.

Quick Facts (2026)

  • District size: 4 schools
  • Grades: PK-12
  • Enrollment: 799 students
  • Student-Teacher Ratio: 12:1
  • Minority Enrollment: 7%
  • : 92% (Top 20% in NY)
  • : Top 30%
  • : 66% (Top 30%)
  • : 54% (Top 50%)
  • : 80-84% (Top 50%)
  • Source: National Center for Education Statistics (NCES), NY Dept. of Education

Quick Links


Notice: Undefined property: MultipleSchoolsModel::$total in /home/devsarath/workspace/psr/public_html/include/srn_lib/psr/view/RegionQuickLinksView.inc.php on line 75

Notice: Undefined property: MultipleSchoolsModel::$total in /home/devsarath/workspace/psr/public_html/include/srn_lib/psr/view/RegionQuickLinksView.inc.php on line 82

Notice: Undefined property: MultipleSchoolsModel::$total in /home/devsarath/workspace/psr/public_html/include/srn_lib/psr/view/RegionQuickLinksView.inc.php on line 88

Notice: Undefined property: MultipleSchoolsModel::$total in /home/devsarath/workspace/psr/public_html/include/srn_lib/psr/view/RegionQuickLinksView.inc.php on line 94

Notice: Undefined property: MultipleSchoolsModel::$total in /home/devsarath/workspace/psr/public_html/include/srn_lib/psr/view/RegionQuickLinksView.inc.php on line 100

Notice: Undefined property: MultipleSchoolsModel::$total in /home/devsarath/workspace/psr/public_html/include/srn_lib/psr/view/RegionQuickLinksView.inc.php on line 106

Notice: Undefined property: MultipleSchoolsModel::$total in /home/devsarath/workspace/psr/public_html/include/srn_lib/psr/view/RegionQuickLinksView.inc.php on line 112

Notice: Undefined property: MultipleSchoolsModel::$total in /home/devsarath/workspace/psr/public_html/include/srn_lib/psr/view/RegionQuickLinksView.inc.php on line 123

Notice: Javascript file does not exist: /home/devsarath/workspace/psr/public_html/javascript/components/popper.min.js in /home/devsarath/workspace/shared/misc/JSCompiler.inc.php on line 242

Notice: Javascript file does not exist: /home/devsarath/workspace/psr/public_html/javascript/components/tippy.min.js in /home/devsarath/workspace/shared/misc/JSCompiler.inc.php on line 242

Notice: Directory does not exist in /home/devsarath/workspace/shared/misc/JSCompiler.inc.php on line 242

Notice: Unable to save compiled js file in /home/devsarath/workspace/shared/misc/JSCompiler.inc.php on line 242