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allk12 · Rankings · Largest · New York · Jefferson County · High schools

The largest public high schools in Jefferson County, New York

7 public high schools in Jefferson County, New York appear in this ranking of the largest public high schools, ranked by total student enrollment, excluding online and virtual schools. WATERTOWN SENIOR HIGH SCHOOL leads the list at 1,181, against a median of 675 across the ranked schools.

The table below is sortable and filterable, and the full list downloads as a CSV. Figures come from federal NCES enrollment data and, where applicable, state assessment results for 2024-25.

Schools ranked
7
Jefferson County, New York
Top Students
1,181
Median Students
675
LARGEST · JEFFERSON COUNTY, NEW YORK
#SchoolCityDistrictLevelStudents
1WATERTOWN SENIOR HIGH SCHOOLWATERTOWN, NYWATERTOWN CITY SCHOOL DISTRICTHigh1,181
2CARTHAGE SENIOR HIGH SCHOOLCARTHAGE, NYCARTHAGE CENTRAL SCHOOL DISTRICTHigh887
3INDIAN RIVER HIGH SCHOOLPHILADELPHIA, NYINDIAN RIVER CENTRAL SCHOOL DISTRICTHigh791
4GENERAL BROWN JUNIOR-SENIOR HIGH SCHOOLDEXTER, NYGENERAL BROWN CENTRAL SCHOOL DISTRICTHigh675
5SOUTH JEFFERSON HIGH SCHOOLADAMS, NYSOUTH JEFFERSON CENTRAL SCHOOL DISTRICTHigh574
6THOUSAND ISLANDS HIGH SCHOOLCLAYTON, NYTHOUSAND ISLANDS CENTRAL SCHOOL DISTRICTHigh262
7ALEXANDRIA CENTRAL HIGH SCHOOLALEXANDRIA BAY, NYALEXANDRIA CENTRAL SCHOOL DISTRICTHigh224
Page 1 of 1 · top 7 of 7 ranked. NCES + state assessment data, 2024-25.↓ Download full CSV

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DATA NOTICE

allk12 is independent and not affiliated with, endorsed by, or sponsored by NCES, the US Census Bureau, any state education agency or assessment program, or any other government agency. Source data is compiled from public records and provided "as is," without warranty of accuracy or completeness. You rely on it, and any analysis derived from it, at your own risk. See the full disclaimer.