Thousand Islands Middle School
Public
Middle Grades 6–8 B-School Grade
Part of Thousand Islands Central School District
8487 County Rt 9, Clayton, NY 13624 · (315) 686-5594
Community ratings
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Academic performance
Math proficiency50%
State average 56.1%
Reading / language arts56%
State average 62.6%
EDFacts via Urban Institute Education Data Portal (SY2020-21)
At a glance
185Students enrolled
12:1Student–teacher ratio
31%Free / reduced lunch
RuralSetting
Regular SchoolSchool type
Enrollment by grade
Grade 665
Grade 755
Grade 865
Students
White · 94%173
Two or more races · 4%8
Hispanic · 2%4
Counts as reported to NCES; percentages are of students with a reported race/ethnicity.
Enrollment · last 5 years
209’20
218’21
209’22
192’23
185’24
Location
8487 County Rt 9 Clayton
Neighbor reviews
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School facts from the U.S. Department of Education (NCES), 2024-2025 school year. Academic scores from the EDFacts via Urban Institute Education Data Portal (SY2020-21). Community ratings and reviews reflect neighbor opinions, not an official measure of school quality.