Back to School: When Princeton Students Return in 2026 and the Key Dates to Know

Summer is winding down, and classes are about to resume for students across Princeton. Here is when the new school year begins and the key dates families will want to mark, based on each district's official 2026-27 calendar.

Most of Princeton is served by Princeton ISD, where students return Wednesday, August 12, 2026. The year runs through May 20, 2027.

Because Princeton spans more than one district, students in some areas start on different days:

• McKinney ISD: Thursday, August 13, 2026 (serving part of the city's western edge)

Key dates — Princeton ISD 2026-27

• First day of school: Wednesday, August 12, 2026

• Thanksgiving break: November 23-27, 2026

• Winter break: December 21, 2026 - January 1, 2027

• Spring break: March 15-19, 2027

• Last day of school: May 20, 2027

The complete calendar, including holidays and early-release days, is linked below.

Families who live near a district boundary can confirm their child's assigned district and campus by address on the district's website.

Sources

https://www.princetonisd.net/our-district/calendar