Ray Wiltsey Middle School is located at 1450 East G Street, Ontario, CA 91764. It serves students in grades 6 through 8. The school’s enrollment is approximately 741 students with a student–teacher ratio of about 18:1. The student body includes roughly 51% male students and 49% female students based on the latest enrollment figures. According to state assessment data, around 21% of students meet math proficiency standards, while about 36% meet reading benchmarks on recent statewide tests. The campus is part of the Ontario-Montclair School District and organizes its middle grade curriculum around a common six-period day with core instruction for all grade levels across the span. This grade configuration and schedule structure support a consistent instructional rhythm for middle-grade learners. The school is located in an urban Ontario environment, surrounded by established residential areas and local amenities that define this segment of the Inland Empire. The cost of single-family residences in the region typically falls within the mid-$600,000 range, influenced by local housing trends and accessibility to major transportation routes. In this residential and operational context, Ray Wiltsey Middle operates within the broader public education landscape often referenced in discussions of the top middle schools in California, where district curriculum design and community placement shape the middle grade experience.