Sunnyside Unified School District is the second largest school district in Tucson, Arizona, serving approximately 14,000 students. Sunnyside covers 93.6 square miles and serves the southern part of the City of Tucson and areas adjacent in Pima County, including the San Xavier Reservation. Sunnyside was established in 1921 and serves families with children from birth to grade 12. The nationally recognized Ocotillo Early Learning Center is the District’s high quality, developmentally appropriate early childhood center serving children ages birth to five of all abilities in an inclusive, nurturing, stimulating environment.