Waterloo High School is a public high school located in Waterloo, New York, United States. As of 2021, it has an enrollment of 471 students from grades 9–12. Waterloo High School is ranked 816th within New York. Students have the opportunity to take Advanced Placement® coursework and exams. The AP® participation rate at Waterloo High School is 19%. The total minority enrollment is 12%, and 57% of students are economically disadvantaged. The current principal is James Karcz and the assistant principals are Tabitha Morris and Katherine Tucker.