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Thousand Islands Central School District Schools
Thousand Islands Central School District is a public school district in New York, based in Jefferson County (Clayton). SchoolGrade grades 4 of its schools on actual versus projected test scores; every school below has its own page.
Thousand Islands Central School District on the map
District boundary from the NCES EDGE composite school district file. Each marker is a graded school; click it for its grade and scores.
SchoolGrade summary for Thousand Islands Central School District
4 of 4 schools in Thousand Islands Central School District carry a SchoolGrade. Grade distribution:
A: 4
Best schools in Thousand Islands Central School District
Statewide rankings: all 769 high schools in New York · all 439 middle schools in New York · all 1408 elementary schools in New York
The ten highest SchoolGrades in the district. Grades reward actual test performance against the projection for each school's student context, so a B in a high-poverty school can outrank an A- elsewhere on impact.
- A+ Thousand Islands High School (High school, meets expectations)
- A+ Bashaw Elementary School (Elementary school, greatly exceeds expectations)
- A Guardino Elementary School (Elementary school, exceeds expectations)
- A Thousand Islands Middle School (Middle school, greatly exceeds expectations)
Every school in Thousand Islands Central School District
High schools (1)
- A+ Thousand Islands High School, Clayton
Middle and junior high schools (1)
- A Thousand Islands Middle School, Clayton
Elementary and primary schools (2)
- A+ Bashaw Elementary School, Cape Vincent
- A Guardino Elementary School, Clayton
Where Thousand Islands Central School District schools are
Cities and towns served (2)
- Clayton (3)
- Cape Vincent (1)
About this district
- State: Best schools in New York
- County: Jefferson County
- Type: regular local school district
- Setting: distant rural (NCES locale of the district office)
- Enrollment: 841 students with 69 full-time-equivalent teachers and 171 total staff FTE (NCES CCD, 2023-24)
- NCES district ID: 3607650
- Grades are the 2025-26 SchoolGrade model: each school's actual proficiency against the level projected for its student context. How SchoolGrade works
Nearby school districts
- General Brown Central School District (3 schools, 12 mi)
- Watertown City School District (8 schools, 19 mi)
- Indian River Central School District (8 schools, 23 mi)
- South Jefferson Central School District (4 schools, 27 mi)
- Carthage Central School District (5 schools, 30 mi)
- Gouverneur Central School District (3 schools, 38 mi)
- Sandy Creek Central School District (3 schools, 39 mi)
- Lowville Academy & Central School District (3 schools, 40 mi)
Questions about Thousand Islands Central School District
How many schools are in Thousand Islands Central School District?
SchoolGrade grades 4 public schools in Thousand Islands Central School District, across 2 cities and towns. Every one of them is listed on this page with a link to its own report.
Which cities does Thousand Islands Central School District serve?
The largest by graded schools: Clayton, Cape Vincent.
How good are the schools in Thousand Islands Central School District?
Across the 4 graded schools, the average SchoolGrade is A+, with 73.3% of tested students meeting the state bar against a projected 68%. 100% of schools meet or exceed the expectation for their student context.
How many students attend Thousand Islands Central School District?
841 students were enrolled in Thousand Islands Central School District in the 2023-24 school year, about 12.2 students per full-time teacher (NCES Common Core of Data).
Where is Thousand Islands Central School District?
Thousand Islands Central School District is in New York, based in Jefferson County, with its district office in Clayton. Its boundary covers about 138 sq mi.