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John M Andersen Jr High School
Test scores
AASA 2024-25 . % PassingWhat this means: On the AASA, Arizona's statewide test, about 28 of every 100 students at this school read and write at grade level and about 11 of 100 do math at grade level. Across all Arizona schools, those numbers are about 45 and 38. Reading and writing scores are down about 5 points since 2017, while math scores are down about 22 points.
7-year change
SY 2017-18 vs SY 2024-25About John M Andersen Jr High School
Set in CHANDLER, Arizona, John M Andersen Jr High School is a large middle school, overseen by Chandler Unified District #80 (4242). It hosts 772 students across grades 6 through 8. Compared to the state average of about 494 students per school, that is 56% bigger than typical.
Within Chandler Unified District #80 (4242), which oversees 48 schools and 41,421 students, John M Andersen Jr High School is one campus in the system.
Demographically, John M Andersen Jr High School lists that 59% of the student body identifies as Hispanic. Other groups include 19% White, 9% Black, 5% multiracial, 4% Native American. The wider county runs roughly 31% Hispanic, putting the school's mix meaningfully more Hispanic than the area baseline.
On the resource side, On paper, John M Andersen Jr High School has 48 full-time-equivalent teachers, translating to a class-load average of around 16.3:1. Statewide, the average ratio sits near 17.8:1, putting John M Andersen Jr High School tighter than the state norm the norm.
In the broader community, community-level numbers for Maricopa County indicate 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), John M Andersen Jr High School is one campus in the mix.
John M Andersen Elementary School is the nearest neighboring public school, about 0.2 miles from this campus. Counting just inside five miles, 8 other public schools cluster around John M Andersen Jr High School.
Geographically, the school is in a city-core area.
Trend over the last 7 years. Looking back 7 years, enrollment at John M Andersen Jr High School has edged down 10%, going from 859 students in 2018 to 772 in 2025. The White share of enrollment fell from 28% to 19% over that span. Class-load math has narrowed: from 18.8:1 in 2018 to 16.3:1 in 2025.
Inside the community feed, members of the John M Andersen Jr High School community share and discuss enrollment questions, classroom assignments, and PTA news. Parents, students, alumni, and staff are welcome to weigh in.
Maricopa County at a glance
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