Thousand Islands High School Building
Welcome to Thousand Islands High School!

Upcoming Events

MAY
5

BES and GES Grades 3-5 Math Testing

Start: May 5, 2026 12:00 AM End: May 7, 2026 12:00 AM

Multi-Day Event

MAY
6

NYS Math Exam (Grades 6-8)

Start: May 6, 2026 12:00 AM End: May 7, 2026 12:00 AM

Multi-Day Event

MAY
6

AP English Literature Exam

8:00 AM - 10:00 AM

View All Events

This site provides information using PDF, visit this link to download the Adobe Acrobat Reader DC software.