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High Schools in Thousand Islands Central School District

At a glance

DistrictThousand Islands Central School District277^th of 874 New York districtsFull district overview →

School

262

Students

Top rankedThousand Islands High School188^th of 1,234 New York high schools

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Summary:

The Thousand Islands Central School District in New York is home to one standout high school, Thousand Islands High School. This school has consistently ranked in the top 15% of high schools in the state, earning a 4-star rating from SchoolDigger and maintaining a graduation rate of 84.3%, which is higher than the state average.

Thousand Islands High School has demonstrated exceptional academic performance, with students scoring well above the state average on a variety of Regents exams. The school's strong performance is particularly noteworthy given that it serves a diverse student population, with over 40% of students qualifying for free or reduced-price lunch. Despite this demographic challenge, the school has managed to maintain its high academic standards and provide a quality education to its students.

While the school's overall performance is impressive, there is room for improvement in addressing the relatively high chronic absenteeism rate of 31.5%. By focusing on improving attendance, the school may be able to further enhance its already strong academic outcomes and continue to serve as a model for other schools within the Thousand Islands Central School District.

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Ranking:

E Elementary M Middle H High A Alternative P Private

Choose columns to see: Summary School Students/Teachers Ranking Test Scores Immunizations Finance All

School													Students/Teachers											Ranking (2025)				Ranking (2024)				Regents Chemistry (2025)	Regents Common Core Algebra II (2025)	Regents Common Core English Language Arts (2025)	Regents Earth Science (2025)	Regents Global History and Geography (2025)	Regents Living Environment (2025)	Regents Physics (2025)	Regents U.S. History and Government (2025)	Regents Algebra I (2025)	Regents Geometry (2025)	% Completely Immunized (2020)	% Polio (2020)	% Measles (2020)	% Mumps (2020)	% Rubella (2020)	% Diphtheria (2020)	% Hepatitis B (2020)	% Varicella (2020)	Per Pupil Expenditures (2025)
Name	Type	Grades	Address	City	Zip	County	District	Is Charter	Is Magnet	Is Virtual	Is Title I	Phone	Enrollment	Full-time Teachers	Student/ Teacher Ratio	Free/Discounted Lunch Recipients	White	Black	Hispanic	Asian	American Indian	Pacific Islander	Two or More Races	Average Standard Score (2025)	Statewide Rank (2025)	State Percentile (2025)	SchoolDigger Rating (2025)	Average Standard Score (2024)	Statewide Rank (2024)	State Percentile (2024)	Rank Change from Previous Year	Regents Chemistry End of Course	Regents Common Core Algebra II End of Course	Regents Common Core English Language Arts End of Course	Regents Earth Science End of Course	Regents Global History and Geography End of Course	Regents Living Environment End of Course	Regents Physics End of Course	Regents U.S. History and Government End of Course	Regents Algebra I End of Course	Regents Geometry End of Course	% Completely Immunized All Grades	% Polio All Grades	% Measles All Grades	% Mumps All Grades	% Rubella All Grades	% Diphtheria All Grades	% Hepatitis B All Grades	% Varicella All Grades	Per Pupil Expenditures Total	Sub-total from Federal Funds	Sub-total from State/Local Funds
Thousand Islands High School	Public	9-12	8481 County Rt 9	Clayton	13624	Jefferson County	Thousand Islands Central School District	No	No	No	No	(315) 686-5594	262	21	12.6	37.8%	236 (90.1%)	0 (0.0%)	12 (4.6%)	2 (0.8%)	1 (0.4%)	0 (0.0%)	11 (4.2%)	77.7	188^th of 1234 public high schools	84.8%		77.6	178^th of 1242 public high schools	85.7%	10	100.0	100.0	79.4	81.4	88.9	91.4	100.0	81.0	85.3	87.9	99.6	100.0	99.6	99.6	99.6	100.0	100.0	100.0	$23,679	$837	$22,842

Districts nearby

District	Distance	# of Schools	Statewide Rank
Lyme Central School District	10.61 mi	1
Sackets Harbor Central School District	16.36 mi	1
General Brown Central School District	16.58 mi	3	366^th
La Fargeville Central School District	18.75 mi	1
Jefferson-Lewis-Hamilton-Herkimer-Oneida BOCES	20.87 mi	1

See the top NY New York districts

SchoolDigger data sources: National Center for Education Statistics, U.S. Department of Education, the U.S. Census Bureau, the WNYC and the New York State Department of Health and the NY State Education Department.

IMPORTANT DISCLAIMERS: Not all boundaries are included. We make every effort to ensure that boundaries are up-to-date. But it's important to note that these are approximations and are for general informational purposes only. To verify legal descriptions of boundaries or school locations, contact your local tax assessor's office and/or school district.