The Irvine Unified School District is a school system that operates elementary, middle and high schools. Its schools offer classes in history, literature, math, science, social studies, history and foreign languages. The district s schools serve more than 20,000 students. The Irvine Unified School District s schools have a staff of teachers, nurses and assistants. In addition, its schools offer food, maintenance and transportation services. The district s schools also provide alternative education and early childhood education programs. The Irvine Unified School District is located in Irvine, Calif.