2025-26 Cobb County School Calendar. 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 cobb county board of tax assessors assesses all county property in compliance with state law.

6201 powers ferry road nw. Laurel county schools calendar 2025 26 cobb county school calendar 2025 2025 | marietta.com: