John M Andersen Jr High School in Chandler, AZ serves 743 students in grades 6–8 with a student–teacher ratio of 19:1, which is higher than the state average ratio of 17 to 1.
Math proficiency is 18%, which is lower than the Arizona state average of 34% and significantly below the Chandler Unified District average of 53%; math scores have declined from 29% in 2018 to 18% in 2023.
Reading proficiency stands at 36%, which is lower than the state average of 40% and the district average of 58%; reading proficiency has remained relatively stable but below district and state averages in recent years.
Science proficiency is 23%, approximately equal to the state average of 24% but lower than the district average of 35%, indicating modest performance in science relative to local benchmarks.
Minority enrollment represents 80% of the student body, with 537 students eligible for free lunch and 55 for reduced–price lunch, reflecting sustained socioeconomic diversity and high Title I eligibility in this Chandler public middle school.
Quick Facts (2026)
- Grades: 6-8
- Enrollment: 743 students
- Student-Teacher Ratio: 19:1
- Minority Enrollment: 80%
- Overall Testing Rank: Bottom 50% in AZ
- Math Proficiency: 18% (Btm 50%)
- Reading Proficiency: 36% (Top 50%)
- Science Proficiency: 23% (Top 50%)
- Source: National Center for Education Statistics (NCES), AZ Dept. of Education
<Â鶹¹û¶³´«Ã½ class='so-dt-title' id="overview">School Overview <Â鶹¹û¶³´«Ã½ class='so-dt-title' id="school-rankings">School Rankings
John M Andersen Jr High School's student population of 743 students has declined by 17% over five school years.
The teacher population of 40 teachers has declined by 20% over five school years.
Grades Offered
Grades 6-8
(No virtual instruction)
(No virtual instruction)
Total Students
743 students
Gender %
Total Classroom Teachers
40 teachers
School Calendar
John M Andersen Jr High School ranks within the bottom 50% of all 1,921 schools in Arizona (based off of combined math and reading proficiency testing data).
The diversity score of John M Andersen Jr High School is 0.63, which is less than the diversity score at state average of 0.66. The school's diversity has stayed relatively flat over five school years.
Overall Testing Rank
#1170 out of 1921 schools
(Bottom 50%)
(Bottom 50%)
Math Test Scores (% Proficient)
18%
34%
Reading/Language Arts Test Scores (% Proficient)
36%
40%
Science Test Scores (% Proficient)
23%
24%
Student-Teacher Ratio
19:1
17:1
American Indian
3%
5%
Asian
4%
3%
Hispanic
57%
48%
Black
10%
6%
White
20%
34%
Hawaiian
1%
n/a
Two or more races
5%
4%
All Ethnic Groups
Eligible for Free Lunch
72%
40%
Eligible for Reduced Lunch
7%
9%
School Statewide Testing
School District Name
Source: National Center for Education Statistics (NCES), AZ Dept. of Education
Profile last updated: 02/09/2025
<Â鶹¹û¶³´«Ã½ class='so-dt-title' id='faq'>Frequently Asked Questions What is John M Andersen Jr High School's ranking?
John M Andersen Jr High School is ranked #1170 out of 1,921 schools, which ranks it among the bottom 50% of public schools in Arizona.
What percent of students have achieved state testing proficiency in math and reading?
18% of students have achieved math proficiency (compared to the 34% AZ state average), while 36% of students have achieved reading proficiency (compared to the 40% AZ state average).
How many students attend John M Andersen Jr High School?
743 students attend John M Andersen Jr High School.
What is the racial composition of the student body?
57% of John M Andersen Jr High School students are Hispanic, 20% of students are White, 10% of students are Black, 5% of students are Two or more races, 4% of students are Asian, 3% of students are American Indian, and 1% of students are Hawaiian.
What is the student-teacher ratio of John M Andersen Jr High School?
John M Andersen Jr High School has a student ration of 19:1, which is higher than the Arizona state average of 17:1.
What grades does John M Andersen Jr High School offer ?
John M Andersen Jr High School offers enrollment in grades 6-8 (No virtual instruction).
What school district is John M Andersen Jr High School part of?
John M Andersen Jr High School is part of Chandler Unified District #80 (4242).
School ReviewsReview John M Andersen Jr High School. Reviews should be a few sentences in length. Please include any comments on:
- Quality of academic programs, teachers, and facilities
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Review John M Andersen Jr High School. Reviews should be a few sentences in length. Please include any comments on:
- Quality of academic programs, teachers, and facilities
- Availability of music, art, sports and other extracurricular activities
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