El Dorado High School is an AdvancED-accredited public charter high school located in Chandler, Arizona. A part of the Leona Group multi-state network of charter schools, El Dorado serves students in grades 9-12 and offers a curriculum aligned with Arizona state standards in a safe and student-centered small school environment. References Public high schools in Arizona The Leona Group Charter schools in Arizona Schools in Maricopa County, Arizona 1998 establishments in Arizona Educational institutions established in 1998