Rio Plaza Elementary School is a public school that provides educational services to students in kindergarten through grade six. It maintains a parent-teacher association that provides financial support through fundraising for special field trips, student assembly programs, classroom materials and vocal music concerts. Rio Plaza Elementary School is a part of the Rio School District, which teaches more than 4,000 students. The school s amenities include over 20 regular classrooms, various portable and converted classrooms and a portable library. Rio Plaza Elementary School has been operational for nearly 55 years and has an annual enrollment of approximately 450 students. It is located in Oxnard, Calif.