Commack Union Free School District Calendar 2025–2026

Complete school year calendar for Commack UFSD — one of Suffolk County's largest and highest-performing school districts on Long Island. Includes all holidays, breaks, half days, and important dates from September 2025 through June 2026.

Official dates — These dates are based on the approved Commack Union Free School District 2025-2026 board calendar.

Key Dates at a Glance

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Key dates for Commack Union Free School District 2025-2026 school year
Event Date(s) Status
First Day of School September 2, 2025 (Tue) School Opens
Labor Day September 1, 2025 (Mon) No School
Rosh Hashanah September 23–24, 2025 (Tue–Wed) No School
Yom Kippur October 2, 2025 (Thu) No School
Columbus Day October 13, 2025 (Mon) No School
Veterans Day November 11, 2025 (Tue) No School
Thanksgiving Recess November 26–28, 2025 (Wed–Fri) No School
Winter Recess Dec 24, 2025 – Jan 2, 2026 No School
Martin Luther King Jr. Day January 19, 2026 (Mon) No School
Mid-Winter Recess February 16–20, 2026 (Mon–Fri) No School
Eid al-Fitr March 20, 2026 (Fri) No School
Spring Recess April 2–10, 2026 No School
Memorial Day May 25, 2026 (Mon) No School
Eid al-Adha May 27, 2026 (Wed) No School
Juneteenth June 19, 2026 (Fri) No School
Last Day of School June 26, 2026 (Fri) School Closes

Commack School Calendar 2025–2026

Complete month-by-month calendar from September 2025 to June 2026. Every day is color-coded so you can see school days, holidays, and breaks at a glance.

School Day
Weekend
Holiday (No School)
School Break
First / Last Day
Important Date

Commack District Overview

The Commack Union Free School District 2025-2026 school year runs from September 4, 2025 to June 26, 2026. Nestled in western Suffolk County, Commack is an undisputed academic powerhouse serving approximately 6,500 students across 9 schools.

Commack High School stands as one of the largest single high schools on Long Island and holds national distinctions for its STEM programs and International Baccalaureate (IB) integration. The district features a rare dual-middle-school structure (Commack MS and Burr IS), making the official calendar critical for families shuttling kids across multiple tiers of schooling.

For easy reference, use the button at the top of this page to download a free, color-coded printable Commack school calendar for your fridge or desk.

Frequently Asked Questions

The first day for Commack UFSD is Tuesday, September 2, 2025.
Holiday Recess runs from December 24, 2025 – January 2, 2026.
Spring Recess runs from April 6–10, 2026.
The last day is Friday, June 26, 2026.
Mid-Winter Recess runs February 16–20, 2026.
Not currently. While Commack has a growing South Asian community, Diwali is not yet an official day off. However, the district has been increasingly recognizing cultural diversity in school programming.
Commack UFSD serves approximately 6,500 students across 9 schools in Suffolk County. The district is bordered by Smithtown, Huntington, and Kings Park, and features two middle schools feeding into Commack High School — one of the largest single high schools on Long Island.
Commack is located in Long Island. Nearby school districts include Half Hollow Hills, Smithtown and Huntington. Each district sets its own academic calendar, though break schedules in the same region often align.

About This Calendar

Data Source: Official Commack Union Free School District calendar publication.

Disclaimer: This website is not affiliated with, endorsed by, or connected to Commack Union Free School District or the New York State Education Department (NYSED). For the most current and official calendar, please visit www.commack.k12.ny.us.

Official calendars can still change. Always confirm updates with the district before making plans.

Last updated: March 17, 2026