Mountainside Middle School

Mountainside Middle School, a reasonably sized middle school in SCOTTSDALE, Arizona, one of the schools within Scottsdale Unified District (4240), serves 518 students, covering grades 6 through 8.

Scottsdale Unified District (4240) comprises 30 schools with combined enrollment of 20,682 students; Mountainside Middle School is among them.

Looking at the student body, Mountainside Middle School logs that 71% of the student body identifies as White; the rest looks like 11% Hispanic, 8% Asian, 5% Black, 3% multiracial. By comparison, Maricopa County as a whole is about 59% White, so the school skews considerably more White than its surroundings.

On the resource side, The school currently runs with 32 full-time-equivalent teachers, for a student-teacher ratio near 16.2:1. Statewide, the average ratio sits near 17.8:1, putting Mountainside Middle School tighter than the state norm the norm.

Around the school, the surrounding county (Maricopa County) logs that the typical household earns roughly $89,300 per year, 37% of adults hold a bachelor's degree or higher, and census figures put the poverty rate at about 8%. Across Maricopa County's 1352 public schools (combined enrollment of about 725,139 students), Mountainside Middle School is one campus in the mix.

Nearest neighbor: Desert Mountain High School, around 0.2 miles off. Counting just inside five miles, 8 other public schools cluster around Mountainside Middle School.

Geographically, the school is in a metropolitan area.

Five-year trend. Looking back 7 years, enrollment at Mountainside Middle School has contracted 18%, going from 630 students in 2018 to 518 in 2025. Over the same period, the White share shrank from 78% to 71%. Class-load math has tightened: from 20.0:1 in 2018 to 16.2:1 in 2025.

On this page, posts here usually surface around enrollment questions, classroom assignments, and PTA news. Parents, students, alumni, and staff are welcome to weigh in.