School Calendar Cobb County 2025 2026. Sprayberry foundation 2525 sandy plains road marietta, ga 30066 The cobb county school calendar for the 2024 to 2025 school year begins on thursday, august 1, 2024 and ends on wednesday, may 21, 2025.

Assessment calendar click here for elementary, middle and high school student assessment information Distributes school events in ical format for the convenience of parents, students and staff members.