Thousand Islands High School

Clayton, NY 13624

Phone: (315) 686-5594
District: Thousand Islands Central School District

6

GreatSchools Rating

public • Grades 9,10,11,12,UG • 262 students

Thousand Islands High School, a public school located in Clayton, NY, serves grades 9-12 & Ungraded in the Thousand Islands Central School District.It has received a GreatSchools Rating of 6 out of 10, based on a variety of school quality measures.

Thousand Islands High School is a public school located in Clayton, NY. 262 students attend Thousand Islands High School.

School Ratings

Category Rating Details
Test Scores 8/10 The Test Score Rating examines how students at this school performed on standardized tests compared with other schools in the state. The Test Rating was created using 2025 New York State Assessments data from New York State Education Department, and using 2025 New York State Regents Exams data from New York State Education Department.
College Readiness 4/10 The College Readiness Rating uses this high school's graduation rates, college entrance exam participation and performance, or AP, IB, or Dual Enrollment participation to determine how well schools are preparing students for success in college and beyond. The College Readiness Rating was created using the following data from the 2021 Civil Rights Data Collection: percentage of students enrolled in IB, AP or Dual Enrollment classes in grades 9-12, using 2025 4-year high school graduation rate data from New York State Education Department, using 2025 demographic data from New York State Education Department, and using 2025 demographic data from the National Center for Education Statistics.
# Name Type City State Overall Rating Distance
1 Lonsway Hill Apartments Apartment Complex Clayton NY 6.7 mi
# Name City State Overall Rating Distance
1 Michigan Ave Watertown NY 21.6 mi
2 Fort Drum Fort Drum NY 24.2 mi
Base Distance
Fort Drum 23.9 mi.
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