The Cobb County School Calendar for the 2025 to 2026 school year begins on Monday, August 4, 2025 and ends on Wednesday, May 20, 2026.  The start date is three days later than last year, and the end date is 1 day earlier than last year. School holidays:

  • First Day of School – August 4, 2025
  • Labor Day – September 1, 2025
  • Fall Break – September 22 – 26, 2025
  • Election Day, Student Holiday/Staff Workday – November 4, 2025
  • Thanksgiving Holidays – November 24 – 28, 2025
  • Winter Holidays –  December 22, 2025 to January 6, 2026
  • Martin Luther King Jr Day – January 19, 2026
  • Winter Break – February 16 – 20, 2026
  • Spring Break – April 6 – 10, 2026
  • Last Day of School – May 20, 2026

School Calendar Guidelines and Notes: State law requires that students are in school 180 days or its equivalent. Each year, school districts are given four “emergency days” they can use for a variety of purposes. Many districts have been building those days into their calendars.  In Cobb County, there are 174 days scheduled for students, and 186 days scheduled for teachers.  The first semester includes 88 school days (94 for teachers) and ends prior to Winter Holidays.  Second semester includes 86 school days (89 for teachers), and ends prior to Memorial Day.  Fall Break usually begins on the fourth Monday in September.  Thanksgiving Break begins on the Monday before the fourth Thursday in November (Thanksgiving Day).  Winter Break begins on the third Monday in February (Presidents Day).  Spring Break begins on the first Monday in April, providing consistency with the Marietta City School District and many other metro Atlanta school systems.  The school year ends on a Wednesday to provide enough time to schedule graduation ceremonies.

Change Log:

Approved December 13, 2023

Cobb County School Calendars:
Cobb County School Calendar 2023-2024
Cobb County School Calendar 2024-2025
Cobb County School Calendar 2025-2026

Marietta City School Calendars:
Marietta City School Calendar 2023-2024
Marietta City School Calendar 2024-2025
Marietta City School Calendar 2025-2026


Related: Cobb County and Marietta City School Calendars Cobb County Early Release Schedule What day does Cobb County go back to school? Cobb County and Marietta City Schools List of Federal Holidays Fall Break Winter Break Spring Break Summer Camps Private Schools

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