Tritt Elementary School 4435 Post Oak Tritt Rd, Marietta, GA30062 Tritt Elementary School is an elementary school located in East Cobb. The school was named a Platinum Georgia School of…More Excellence in 2006. Tritt ES serves students in grades K-5 and is one of 66 Cobb County public elementary schools. The PTA at Tritt ES is extremely involved in the school community, and the Tritt Foundation helps fund school amenities such as the science laboratory and extra classroom resources. For further inquiries, phone Tritt Elementary School.