Jefferson County schools ranked by test score
Latest NYS Assessments year (2024-25). 36 schools in Jefferson County, New York with reported Mathematics scores. New York state average: 57.4%.
| Rank | School | Level | Mathematics | vs state |
|---|---|---|---|---|
| 1 | THOUSAND ISLANDS HIGH SCHOOL CLAYTON · THOUSAND ISLANDS CENTRAL SCHOOL DISTRICT | High | 85.0% | +27.6pp |
| 2 | BASHAW ELEMENTARY SCHOOL CAPE VINCENT · THOUSAND ISLANDS CENTRAL SCHOOL DISTRICT | Elementary | 79.0% | +21.6pp |
| 3 | ALEXANDRIA CENTRAL HIGH SCHOOL ALEXANDRIA BAY · ALEXANDRIA CENTRAL SCHOOL DISTRICT | High | 73.0% | +15.6pp |
| 4 | SACKETS HARBOR CENTRAL SCHOOL SACKETS HARBOR · SACKETS HARBOR CENTRAL SCHOOL DISTRICT | Combined | 70.1% | +12.6pp |
| 5 | GENERAL BROWN JUNIOR-SENIOR HIGH SCHOOL DEXTER · GENERAL BROWN CENTRAL SCHOOL DISTRICT | High | 69.7% | +12.2pp |
| 6 | THOUSAND ISLANDS MIDDLE SCHOOL CLAYTON · THOUSAND ISLANDS CENTRAL SCHOOL DISTRICT | Middle | 68.4% | +11.0pp |
| 7 | INDIAN RIVER HIGH SCHOOL PHILADELPHIA · INDIAN RIVER CENTRAL SCHOOL DISTRICT | High | 68.0% | +10.6pp |
| 8 | PHILADELPHIA PRIMARY SCHOOL PHILADELPHIA · INDIAN RIVER CENTRAL SCHOOL DISTRICT | Elementary | 68.0% | +10.6pp |
| 9 | SOUTH JEFFERSON HIGH SCHOOL ADAMS · SOUTH JEFFERSON CENTRAL SCHOOL DISTRICT | High | 68.0% | +10.6pp |
| 10 | CARTHAGE SENIOR HIGH SCHOOL CARTHAGE · CARTHAGE CENTRAL SCHOOL DISTRICT | High | 66.0% | +8.6pp |
| 11 | EVANS MILLS PRIMARY SCHOOL EVANS MILLS · INDIAN RIVER CENTRAL SCHOOL DISTRICT | Elementary | 65.0% | +7.6pp |
| 12 | LA FARGEVILLE CENTRAL SCHOOL LA FARGEVILLE · LA FARGEVILLE CENTRAL SCHOOL DISTRICT | Combined | 63.1% | +5.7pp |
| 13 | LYME CENTRAL SCHOOL CHAUMONT · LYME CENTRAL SCHOOL DISTRICT | Combined | 60.0% | +2.6pp |
| 14 | INDIAN RIVER MIDDLE SCHOOL PHILADELPHIA · INDIAN RIVER CENTRAL SCHOOL DISTRICT | Middle | 59.3% | +1.8pp |
| 15 | BLACK RIVER SCHOOL BLACK RIVER · CARTHAGE CENTRAL SCHOOL DISTRICT | Elementary | 57.0% | -0.4pp |
| 16 | CLARKE MIDDLE SCHOOL ADAMS · SOUTH JEFFERSON CENTRAL SCHOOL DISTRICT | Middle | 55.1% | -2.3pp |
| 17 | MANNSVILLE MANOR ELEMENTARY SCHOOL MANNSVILLE · SOUTH JEFFERSON CENTRAL SCHOOL DISTRICT | Elementary | 55.0% | -2.4pp |
| 18 | THERESA PRIMARY SCHOOL THERESA · INDIAN RIVER CENTRAL SCHOOL DISTRICT | Elementary | 55.0% | -2.4pp |
| 19 | CARTHAGE MIDDLE SCHOOL CARTHAGE · CARTHAGE CENTRAL SCHOOL DISTRICT | Middle | 54.2% | -3.2pp |
| 20 | GUARDINO ELEMENTARY SCHOOL CLAYTON · THOUSAND ISLANDS CENTRAL SCHOOL DISTRICT | Elementary | 53.0% | -4.4pp |
| 21 | ALEXANDRIA CENTRAL ELEMENTARY SCHOOL ALEXANDRIA BAY · ALEXANDRIA CENTRAL SCHOOL DISTRICT | Elementary | 52.0% | -5.4pp |
| 22 | INDIAN RIVER INTERMEDIATE SCHOOL PHILADELPHIA · INDIAN RIVER CENTRAL SCHOOL DISTRICT | Elementary | 52.0% | -5.4pp |
| 23 | BELLEVILLE HENDERSON CENTRAL SCHOOL BELLEVILLE · BELLEVILLE-HENDERSON CENTRAL SCHOOL DISTRICT | Combined | 51.3% | -6.1pp |
| 24 | MAYNARD P WILSON ELEMENTARY SCHOOL ADAMS CENTER · SOUTH JEFFERSON CENTRAL SCHOOL DISTRICT | Elementary | 49.0% | -8.4pp |
| 25 | CASE MIDDLE SCHOOL WATERTOWN · WATERTOWN CITY SCHOOL DISTRICT | Middle | 47.3% | -10.2pp |
| 26 | BROWNVILLE SCHOOL BROWNVILLE · GENERAL BROWN CENTRAL SCHOOL DISTRICT | Elementary | 47.0% | -10.4pp |
| 27 | SHERMAN SCHOOL WATERTOWN · WATERTOWN CITY SCHOOL DISTRICT | Elementary | 47.0% | -10.4pp |
| 28 | CALCIUM PRIMARY SCHOOL CALCIUM · INDIAN RIVER CENTRAL SCHOOL DISTRICT | Elementary | 46.0% | -11.4pp |
| 29 | WATERTOWN SENIOR HIGH SCHOOL WATERTOWN · WATERTOWN CITY SCHOOL DISTRICT | High | 46.0% | -11.4pp |
| 30 | STARBUCK ELEMENTARY SCHOOL WATERTOWN · WATERTOWN CITY SCHOOL DISTRICT | Elementary | 43.0% | -14.4pp |
| 31 | KNICKERBOCKER SCHOOL WATERTOWN · WATERTOWN CITY SCHOOL DISTRICT | Elementary | 41.0% | -16.4pp |
| 32 | WEST CARTHAGE ELEMENTARY SCHOOL CARTHAGE · CARTHAGE CENTRAL SCHOOL DISTRICT | Elementary | 34.0% | -23.4pp |
| 33 | HAROLD T WILEY SCHOOL WATERTOWN · WATERTOWN CITY SCHOOL DISTRICT | Middle | 32.0% | -25.4pp |
| 34 | CARTHAGE ELEMENTARY SCHOOL CARTHAGE · CARTHAGE CENTRAL SCHOOL DISTRICT | Elementary | 28.0% | -29.4pp |
| 35 | NORTH ELEMENTARY SCHOOL WATERTOWN · WATERTOWN CITY SCHOOL DISTRICT | Elementary | 27.0% | -30.4pp |
| 36 | OHIO STREET SCHOOL WATERTOWN · WATERTOWN CITY SCHOOL DISTRICT | Elementary | 26.0% | -31.4pp |
About this ranking
Schools are ranked by the percentage of students who scored at or above the NYS Assessments % Proficient (Level 3+4) threshold on the latest available NYS Assessments Mathematics test (school year 2024-25). Only public schools in Jefferson County, New York with a reasonable cohort size are shown. A higher percentage is better.
The comparison column shows the gap to the New York statewide enrollment-weighted average. To compare against neighboring counties, use the full New York ranking.