School District · New York
Thousand Islands Central School District
📍 Cape Vincent, NY · Jefferson County · NCES LEAID 3607650
District Contact & Information
Source: NCES CCD 2024–25
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Grades Served
Pre-K – 12th
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District Mailing Address
PO BOX 100, CLAYTON, NY 13624
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NCES District ID (LEAID)
3607650
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District Type
Public School District
Schools in Thousand Islands Central School District
4 schools listed
Zip Codes Served by Thousand Islands Central School District
4 zip codes
Frequently Asked Questions
What zip codes are in Thousand Islands Central School District?▼
Thousand Islands Central School District serves 4 zip codes: 13618, 13624, 13632, 13641. Zip codes and district boundaries do not line up exactly, so confirm your exact address with the district office before you rely on an assignment.
How is Thousand Islands Central School District rated?▼
Thousand Islands Central School District has an overall rating of 9 out of 10 (Excellent), based on the share of students proficient in reading and math on state assessments (NY State tests 2023–24). That places it in the 80th percentile among New York school districts. Ratings are percentile-ranked within New York only and are not comparable across states.
How many students attend Thousand Islands Central School District?▼
The NCES Common Core of Data directory reports enrollment of 891 students across 4 schools for Thousand Islands Central School District.
What grades does Thousand Islands Central School District serve?▼
Thousand Islands Central School District is listed in the NCES directory as serving grades Pre-K – 12th.
What schools are in Thousand Islands Central School District?▼
NCES lists 4 schools operating under Thousand Islands Central School District: 2 elementary, 1 middle, 1 high. Each school's grade span, enrollment and city are listed on this page. Attendance zones are set by the district and a school on this list is not necessarily the one your address is assigned to.
How do I contact Thousand Islands Central School District?▼
You can reach Thousand Islands Central School District by phone at (315)686-5594 or online at www.1000islandsschools.org or by mail at PO BOX 100, CLAYTON, NY 13624. Contact details come from the NCES district directory and are the best way to confirm which school your address is assigned to.
About Thousand Islands Central School District
Thousand Islands Central School District is a public school district serving 4 zip codes in New York, primarily in Jefferson County. It carries an overall rating of 9/10 (Excellent), the 80th percentile among New York districts. That rating reflects the share of students proficient in reading and math on state assessments (NY State tests 2023–24) and is ranked only against other New York districts — scores are not comparable between states. Directory details on this page come from the NCES Common Core of Data, 2024–25.
Schools in this district
NCES lists 4 schools operating under Thousand Islands Central School District — 2 elementary, 1 middle and 1 high. The largest by enrollment is THOUSAND ISLANDS HIGH SCHOOL with 262 students. School-level enrollment comes from the NCES Common Core of Data school directory; a school with no reported enrollment is shown with a dash rather than a zero.
Checking your own address
District boundaries are address-specific and do not follow zip code lines exactly — a single zip code can
be split between two or more districts. Use the zip codes listed above as a starting point, then confirm your
assignment with the district office at (315)686-5594 before making a housing decision.