John M Andersen Jr High School (Ranked Bottom 50% for 2025-26)

1255 N Dobson Rd
Chandler, AZ 85224

( shown in map)

Bottom 50%

www.cusd80.com

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 (2025-26)

Grades: 6-8
Enrollment: 743 students
Student-Teacher Ratio: 19:1
Minority Enrollment: 80%
: Bottom 50% in AZ
: 18% (Btm 50%)
: 36% (Top 50%)
: 23% (Top 50%)
Source: National Center for Education Statistics (NCES), AZ Dept. of Education

School Overview

John M Andersen Jr High School's student population of 743 students has declined by 16% over five school years.

The teacher population of 40 teachers has declined by 11% over five school years.

Grades Offered

Grades 6-8
(No virtual instruction)

View Data

Distribution of Students By Grade Trends
Grade	John M Andersen Jr High School
6	92
7	356
8	295

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Total Students

743 students

View Data

Total Students Trends Over Years (1992-2023)
Year	John M Andersen Jr High School
2023	728
2022	817
2021	905
2020	888
2019	888
2018	939
2017	939
2016	904
2015	924
2014	913
2013	945
2012	877
2011	950
2010	1,006
2009	985
2008	1,014
2007	1,064
2006	1,053
2005	1,072
2004	1,175
2002	1,146
2001	991
2000	934
1999	956
1998	1,066
1997	1,101
1996	1,062
1995	992
1994	999
1993	1,028
1992	1,152

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Gender %

Total Classroom Teachers

40 teachers

View Data

Total Classroom Teachers Trends Over Years (1993-2023)
Year	John M Andersen Jr High School
2023	42
2022	47
2021	50
2020	45
2019	45
2018	49
2017	49
2016	50
2015	47
2014	49
2013	49
2012	45
2011	48
2010	50
2009	55
2008	56
2007	58
2006	56
2005	54
2004	54
2003	59
2002	54
2001	52
2000	50
1999	48
1998	58
1997	58
1996	53
1995	52
1994	55
1993	57

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School Calendar

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School Rankings

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 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.

This School

State Level (AZ)

#1170 out of 1921 schools
(Bottom 50%)

View Data

Overall School Rank Trends Over Years (2012-2023)
Year	John M Andersen Jr High School
2023	#1170
2022	#1193
2021	#1006
2019	#1540
2018	#1405
2017	#1132
2016	#944
2015	#1074
2014	#965
2013	#834
2012	#835

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18%

34%

View Data

Math Proficiency Comparison Over Years (2012-2023)
Year	John M Andersen Jr High School	Arizona	Chandler Unified District #80 (4242)
2023	18%	34%	53%
2022	18%	35%	53%
2021	20%	32%	49%
2019	26%	45%	57%
2018	29%	45%	61%
2017	33%	42%	57%
2016	36%	39%	55%
2015	29%	38%	57%
2014	61%	63%	77%
2013	62%	63%	77%
2012	60%	63%	77%

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36%

40%

View Data

Reading and Language Arts Proficiency Comparison Over Years (2011-2022)
Year	John M Andersen Jr High School	Arizona	Chandler Unified District #80 (4242)
2022	36%	40%	58%
2021	32%	39%	57%
2019	34%	45%	59%
2018	34%	44%	61%
2017	33%	42%	57%
2016	32%	40%	56%
2015	35%	38%	56%
2014	76%	79%	89%
2013	79%	78%	88%
2012	79%	77%	87%
2011	79%	77%	85%

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23%

24%

Student-Teacher Ratio

19:1

17:1

View Data

Student-Teacher Ratio Comparison Over Years (1992-2023)
Year	John M Andersen Jr High School	Arizona	Chandler Unified District #80 (4242)
2023	17:1	17:1	18:1
2022	17:1	17:1	18:1
2021	18:1	17:1	17:1
2020	20:1	18:1	19:1
2019	20:1	18:1	19:1
2018	19:1	19:1	19:1
2017	19:1	19:1	19:1
2016	18:1	20:1	19:1
2015	20:1	20:1	19:1
2014	19:1	19:1	19:1
2013	19:1	19:1	20:1
2012	20:1	18:1	20:1
2011	20:1	19:1	19:1
2010	20:1	18:1	19:1
2009	18:1	18:1	19:1
2008	18:1	18:1	19:1
2007	18:1	18:1	19:1
2006	19:1	18:1	20:1
2005	20:1	19:1	20:1
2004	22:1	19:1	22:1
2002	21:1	19:1	20:1
2001	19:1	19:1	20:1
2000	19:1	19:1	18:1
1999	20:1	19:1	20:1
1998	18:1	19:1	21:1
1997	19:1	19:1	21:1
1996	20:1	19:1	21:1
1995	19:1	19:1	20:1
1994	18:1	19:1	21:1
1993	18:1	20:1	21:1
1992	19:1	20:1	20:1

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American Indian

View Data

American Indian Student Percentage Comparison Over Years (1992-2023)
Year	John M Andersen Jr High School	Arizona	Chandler Unified District #80 (4242)
2023	2%	5%	2%
2022	2%	5%	2%
2021	3%	5%	2%
2020	3%	6%	1%
2019	3%	6%	1%
2018	2%	6%	1%
2017	2%	6%	1%
2016	3%	5%	2%
2015	2%	5%	1%
2014	2%	5%	2%
2013	4%	5%	2%
2012	5%	5%	2%
2011	3%	7%	2%
2010	3%	6%	3%
2009	3%	6%	2%
2008	2%	5%	2%
2007	1%	6%	1%
2006	2%	7%	2%
2005	1%	7%	2%
2004	2%	8%	3%
2002	2%	8%	2%
2001	1%	8%	2%
2000	1%	8%	2%
1999	1%	7%	2%
1998	2%	7%	2%
1997	1%	7%	2%
1996	2%	7%	2%
1995	2%	7%	3%
1994	2%	7%	3%
1993	3%	7%	3%
1992	2%	8%	4%

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Asian

View Data

Asian Student Percentage Comparison Over Years (1992-2023)
Year	John M Andersen Jr High School	Arizona	Chandler Unified District #80 (4242)
2023	5%	3%	11%
2022	4%	3%	11%
2021	4%	3%	10%
2020	3%	3%	9%
2019	3%	3%	9%
2018	4%	3%	8%
2017	4%	3%	8%
2016	4%	3%	8%
2015	3%	3%	8%
2014	4%	3%	8%
2013	6%	3%	9%
2012	7%	3%	8%
2011	5%	3%	9%
2010	5%	3%	8%
2009	7%	3%	8%
2008	7%	3%	7%
2007	6%	3%	7%
2006	5%	2%	6%
2005	5%	2%	5%
2004	5%	2%	4%
2002	4%	2%	4%
2001	4%	2%	3%
2000	4%	2%	3%
1999	4%	2%	3%
1998	3%	2%	3%
1997	3%	2%	2%
1996	3%	2%	2%
1995	4%	2%	2%
1994	3%	2%	2%
1993	2%	2%	2%
1992	2%	2%	3%

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Hispanic

57%

48%

View Data

Hispanic Student Percentage Comparison Over Years (1992-2023)
Year	John M Andersen Jr High School	Arizona	Chandler Unified District #80 (4242)
2023	59%	47%	30%
2022	58%	47%	29%
2021	57%	46%	29%
2020	55%	45%	28%
2019	55%	45%	28%
2018	51%	45%	28%
2017	51%	45%	28%
2016	51%	45%	27%
2015	52%	45%	28%
2014	51%	44%	26%
2013	44%	43%	26%
2012	43%	43%	26%
2011	44%	42%	26%
2010	44%	41%	26%
2009	39%	41%	27%
2008	39%	42%	28%
2007	38%	41%	29%
2006	37%	39%	29%
2005	37%	38%	29%
2004	34%	37%	30%
2002	30%	35%	31%
2001	29%	33%	31%
2000	27%	33%	31%
1999	28%	32%	30%
1998	26%	31%	31%
1997	26%	30%	31%
1996	25%	30%	31%
1995	23%	29%	30%
1994	25%	28%	30%
1993	23%	27%	29%
1992	24%	25%	28%

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Black

10%

View Data

Black Student Percentage Comparison Over Years (1992-2023)
Year	John M Andersen Jr High School	Arizona	Chandler Unified District #80 (4242)
2023	9%	6%	5%
2022	8%	6%	5%
2021	7%	6%	5%
2020	7%	5%	5%
2019	7%	5%	5%
2018	9%	5%	5%
2017	9%	5%	5%
2016	8%	5%	5%
2015	9%	5%	6%
2014	8%	5%	6%
2013	8%	5%	6%
2012	6%	5%	7%
2011	6%	5%	7%
2010	7%	6%	7%
2009	6%	6%	7%
2008	6%	6%	7%
2007	7%	5%	6%
2006	6%	5%	6%
2005	7%	5%	6%
2004	7%	5%	6%
2002	5%	5%	6%
2001	6%	5%	5%
2000	4%	4%	5%
1999	3%	5%	4%
1998	4%	4%	4%
1997	3%	4%	4%
1996	3%	4%	4%
1995	3%	4%	3%
1994	3%	4%	3%
1993	3%	4%	3%
1992	3%	4%	4%

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White

20%

34%

View Data

White Student Percentage Comparison Over Years (1992-2023)
Year	John M Andersen Jr High School	Arizona	Chandler Unified District #80 (4242)
2023	21%	35%	46%
2022	22%	35%	48%
2021	23%	36%	49%
2020	28%	38%	53%
2019	28%	38%	53%
2018	32%	38%	55%
2017	32%	38%	55%
2016	33%	39%	56%
2015	33%	40%	55%
2014	34%	41%	56%
2013	38%	42%	57%
2012	39%	42%	57%
2011	42%	42%	56%
2010	41%	44%	56%
2009	45%	44%	56%
2008	46%	44%	56%
2007	48%	45%	57%
2006	50%	47%	57%
2005	50%	48%	58%
2004	52%	48%	57%
2002	59%	50%	57%
2001	60%	52%	59%
2000	64%	53%	59%
1999	64%	54%	61%
1998	65%	56%	60%
1997	67%	57%	61%
1996	67%	57%	61%
1995	68%	58%	62%
1994	67%	59%	62%
1993	69%	60%	63%
1992	69%	61%	61%

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Hawaiian

n/a

Two or more races

View Data

Two or More Races Student Percentage Comparison Over Years (2014-2023)
Year	John M Andersen Jr High School	Arizona	Chandler Unified District #80 (4242)
2023	4%	4%	6%
2022	5%	4%	5%
2021	5%	4%	5%
2020	4%	3%	4%
2019	4%	3%	4%
2018	2%	3%	3%
2017	2%	3%	3%
2016	1%	3%	2%
2015	1%	2%	2%
2014	1%	2%	2%

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All Ethnic Groups

0.63

0.66

View Data

Diversity Score Comparison Over Years (1992-2023)
Year	John M Andersen Jr High School	Arizona	Chandler Unified District #80 (4242)
2023	0.60	0.65	0.68
2022	0.61	0.65	0.67
2021	0.62	0.66	0.66
2020	0.62	0.65	0.64
2019	0.62	0.65	0.64
2018	0.63	0.65	0.62
2017	0.63	0.65	0.62
2016	0.63	0.65	0.61
2015	0.62	0.64	0.61
2014	0.63	0.64	0.61
2013	0.66	0.64	0.61
2012	0.66	0.64	0.60
2011	0.63	0.65	0.60
2010	0.64	0.64	0.61
2009	0.64	0.64	0.60
2008	0.63	0.63	0.60
2007	0.62	0.63	0.59
2006	0.61	0.63	0.58
2005	0.61	0.62	0.58
2004	0.61	0.63	0.58
2002	0.56	0.62	0.57
2001	0.56	0.62	0.56
2000	0.52	0.62	0.55
1999	0.51	0.60	0.54
1998	0.51	0.59	0.54
1997	0.49	0.58	0.53
1996	0.49	0.58	0.53
1995	0.49	0.58	0.53
1994	0.49	0.57	0.53
1993	0.47	0.56	0.52
1992	0.47	0.56	0.50

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Eligible for

72%

40%

View Data

Free Lunch Eligibility Comparison Over Years (2005-2023)
Year	John M Andersen Jr High School	Arizona	Chandler Unified District #80 (4242)
2023	49%	39%	20%
2022	21%	29%	12%
2021	59%	42%	27%
2020	52%	43%	20%
2019	52%	43%	20%
2018	57%	42%	27%
2017	57%	42%	27%
2016	53%	33%	23%
2015	56%	34%	25%
2014	51%	36%	25%
2013	48%	37%	25%
2012	42%	36%	24%
2011	37%	36%	23%
2010	40%	38%	23%
2009	36%	39%	20%
2008	28%	29%	15%
2007	26%	32%	16%
2006	32%	37%	22%
2005	41%	40%	26%

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Eligible for

View Data

Reduced-Price Lunch Eligibility Comparison Over Years (2004-2023)
Year	John M Andersen Jr High School	Arizona	Chandler Unified District #80 (4242)
2023	15%	7%	5%
2021	6%	9%	3%
2020	7%	7%	3%
2019	7%	7%	3%
2018	5%	9%	2%
2017	5%	9%	2%
2016	5%	11%	3%
2015	8%	5%	4%
2014	8%	14%	4%
2013	8%	10%	5%
2012	6%	11%	4%
2011	6%	10%	4%
2010	6%	8%	4%
2009	6%	10%	3%
2008	8%	9%	3%
2007	7%	9%	3%
2006	7%	8%	4%
2005	41%	8%	21%
2004	27%	8%	22%

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School Statewide Testing

View Education Department Test Scores

School District Name

Chandler Unified District #80 (4242)

Source: National Center for Education Statistics (NCES), AZ Dept. of Education

Profile last updated: 02/09/2025

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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 Reviews

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