Mountainside Middle School (Ranked Top 20% for 2025-26)

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Mountainside Middle School

11256 N 128th St
Scottsdale, AZ 85259

( shown in map)

Top 20%

Serving 545 students in grades 6-8, Mountainside Middle School ranks in the top 20% of all schools in Arizona for overall test scores (math proficiency is top 30%, and reading proficiency is top 30%).

The percentage of students achieving is 49% (which is higher than the Arizona state average of 34%). The percentage of students achieving is 56% (which is higher than the Arizona state average of 40%).

The student-teacher ratio of 17:1 is equal to the Arizona state level of 17:1.

Minority enrollment is 27% of the student body (majority Hispanic and Asian), which is lower than the Arizona state average of 66% (majority Hispanic).

Quick Facts (2025-26)

Grades: 6-8
Enrollment: 545 students
Student-Teacher Ratio: 17:1
Minority Enrollment: 27%
: Top 20% in AZ
: 49% (Top 30%)
: 56% (Top 20%)
: 35% (Top 30%)
Source: National Center for Education Statistics (NCES), AZ Dept. of Education

Top Rankings

Mountainside Middle School ranks among the top 20% of public schools in Arizona for:

School Overview

Mountainside Middle School's student population of 545 students has declined by 16% over five school years.

The teacher population of 33 teachers has grown by 13% over five school years.

Grades Offered

Grades 6-8
(No virtual instruction)

View Data

Distribution of Students By Grade Trends
Grade	Mountainside Middle School
6	173
7	184
8	188

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Total Students

545 students

View Data

Total Students Trends Over Years (1993-2023)
Year	Mountainside Middle School
2023	550
2022	532
2021	488
2020	650
2019	650
2018	692
2017	692
2016	693
2015	766
2014	816
2013	809
2012	885
2011	924
2010	899
2009	897
2008	921
2007	985
2006	1,023
2005	1,010
2004	1,000
2003	1,160
2002	1,156
2001	1,125
2000	1,092
1999	1,077
1998	1,085
1997	1,014
1996	1,043
1995	953
1994	815
1993	719

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Gender %

Total Classroom Teachers

33 teachers

View Data

Total Classroom Teachers Trends Over Years (1993-2023)
Year	Mountainside Middle School
2023	31
2022	32
2021	31
2020	29
2019	29
2018	31
2017	31
2016	35
2015	37
2014	38
2013	40
2012	47
2011	43
2010	48
2009	45
2008	47
2007	50
2006	50
2005	47
2004	47
2003	59
2002	58
2001	56
2000	56
1999	58
1998	54
1997	51
1996	52
1995	51
1994	40
1993	35

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School Calendar

Last Day of School

Mon. May 25, 2026

School Rankings

Mountainside Middle School ranks within the top 20% of all 1,921 schools in Arizona (based off of combined math and reading proficiency testing data).

The of Mountainside Middle School is 0.45, 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)

#384 out of 1921 schools
(Top 20%)

View Data

Overall School Rank Trends Over Years (2012-2023)
Year	Mountainside Middle School
2023	#384
2022	#397
2021	#240
2019	#314
2018	#280
2017	#209
2016	#197
2015	#349
2014	#188
2013	#154
2012	#179

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49%

34%

View Data

Math Proficiency Comparison Over Years (2012-2023)
Year	Mountainside Middle School	Arizona	Scottsdale Unified District (4240) School District
2023	49%	34%	57%
2022	49%	35%	58%
2021	54%	32%	53%
2019	63%	45%	63%
2018	64%	45%	63%
2017	65%	42%	59%
2016	59%	39%	52%
2015	52%	38%	50%
2014	83%	63%	76%
2013	83%	63%	75%
2012	81%	63%	77%

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56%

40%

View Data

Reading and Language Arts Proficiency Comparison Over Years (2011-2022)
Year	Mountainside Middle School	Arizona	Scottsdale Unified District (4240) School District
2022	56%	40%	61%
2021	58%	39%	55%
2019	67%	45%	63%
2018	68%	44%	63%
2017	67%	42%	60%
2016	67%	40%	55%
2015	53%	38%	53%
2014	93%	79%	89%
2013	93%	78%	89%
2012	93%	77%	88%
2011	93%	77%	88%

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35%

24%

Student-Teacher Ratio

17:1

View Data

Student-Teacher Ratio Comparison Over Years (1993-2023)
Year	Mountainside Middle School	Arizona	Scottsdale Unified District (4240) School District
2023	18:1	17:1	16:1
2022	17:1	17:1	17:1
2021	16:1	17:1	17:1
2020	22:1	18:1	17:1
2019	22:1	18:1	17:1
2018	22:1	19:1	18:1
2017	22:1	19:1	18:1
2016	20:1	20:1	18:1
2015	21:1	20:1	19:1
2014	22:1	19:1	19:1
2013	20:1	19:1	19:1
2012	19:1	18:1	16:1
2011	22:1	19:1	19:1
2010	19:1	18:1	18:1
2009	20:1	18:1	17:1
2008	20:1	18:1	16:1
2007	20:1	18:1	16:1
2006	20:1	18:1	18:1
2005	21:1	19:1	19:1
2004	21:1	19:1	19:1
2003	20:1	19:1	18:1
2002	20:1	19:1	18:1
2001	20:1	19:1	18:1
2000	20:1	19:1	18:1
1999	19:1	19:1	19:1
1998	20:1	19:1	19:1
1997	20:1	19:1	19:1
1996	20:1	19:1	19:1
1995	19:1	19:1	19:1
1994	21:1	19:1	19:1
1993	20:1	20:1	20:1

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American Indian

View Data

American Indian Student Percentage Comparison Over Years (1999-2023)
Year	Mountainside Middle School	Arizona	Scottsdale Unified District (4240) School District
2023	1%	5%	3%
2022	1%	5%	3%
2021	2%	5%	4%
2020	1%	6%	4%
2019	1%	6%	4%
2018	1%	6%	3%
2017	1%	6%	3%
2011	1%	7%	3%
2010	1%	6%	2%
2009	1%	6%	3%
2008	1%	5%	2%
2000	1%	8%	1%
1999	1%	7%	2%

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Asian

View Data

Asian Student Percentage Comparison Over Years (1993-2023)
Year	Mountainside Middle School	Arizona	Scottsdale Unified District (4240) School District
2023	7%	3%	6%
2022	8%	3%	6%
2021	7%	3%	6%
2020	7%	3%	6%
2019	7%	3%	6%
2018	7%	3%	6%
2017	7%	3%	6%
2016	6%	3%	5%
2015	5%	3%	5%
2014	6%	3%	5%
2013	7%	3%	5%
2012	7%	3%	5%
2011	6%	3%	5%
2010	5%	3%	5%
2009	5%	3%	5%
2008	4%	3%	4%
2007	4%	3%	4%
2006	4%	2%	4%
2005	3%	2%	4%
2004	3%	2%	4%
2003	3%	2%	3%
2002	3%	2%	3%
2001	3%	2%	3%
2000	3%	2%	3%
1999	3%	2%	4%
1998	3%	2%	3%
1997	3%	2%	3%
1996	2%	2%	3%
1995	2%	2%	3%
1994	2%	2%	3%
1993	2%	2%	3%

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Hispanic

12%

48%

View Data

Hispanic Student Percentage Comparison Over Years (1993-2023)
Year	Mountainside Middle School	Arizona	Scottsdale Unified District (4240) School District
2023	10%	47%	24%
2022	9%	47%	23%
2021	9%	46%	23%
2020	10%	45%	22%
2019	10%	45%	22%
2018	10%	45%	23%
2017	10%	45%	23%
2016	9%	45%	22%
2015	10%	45%	21%
2014	7%	44%	20%
2013	6%	43%	19%
2012	7%	43%	19%
2011	7%	42%	18%
2010	7%	41%	17%
2009	6%	41%	16%
2008	5%	42%	16%
2007	5%	41%	15%
2006	5%	39%	15%
2005	3%	38%	13%
2004	3%	37%	12%
2003	3%	36%	11%
2002	3%	35%	11%
2001	3%	33%	10%
2000	3%	33%	9%
1999	3%	32%	10%
1998	3%	31%	8%
1997	3%	30%	8%
1996	3%	30%	8%
1995	2%	29%	7%
1994	2%	28%	7%
1993	2%	27%	6%

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Black

View Data

Black Student Percentage Comparison Over Years (1993-2023)
Year	Mountainside Middle School	Arizona	Scottsdale Unified District (4240) School District
2023	2%	6%	4%
2022	3%	6%	5%
2021	2%	6%	4%
2020	5%	5%	5%
2019	5%	5%	5%
2018	2%	5%	4%
2017	2%	5%	4%
2016	2%	5%	4%
2015	2%	5%	4%
2014	3%	5%	4%
2013	2%	5%	4%
2012	2%	5%	3%
2011	2%	5%	3%
2010	2%	6%	3%
2009	1%	6%	3%
2008	1%	6%	3%
2007	1%	5%	3%
2006	1%	5%	2%
2005	1%	5%	2%
2004	1%	5%	2%
2003	1%	5%	2%
2002	2%	5%	2%
2001	1%	5%	2%
2000	1%	4%	2%
1999	1%	5%	2%
1998	1%	4%	1%
1997	1%	4%	1%
1996	1%	4%	1%
1995	1%	4%	1%
1994	1%	4%	1%
1993	1%	4%	1%

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White

73%

34%

View Data

White Student Percentage Comparison Over Years (1993-2023)
Year	Mountainside Middle School	Arizona	Scottsdale Unified District (4240) School District
2023	77%	35%	60%
2022	76%	35%	60%
2021	79%	36%	61%
2020	76%	38%	62%
2019	76%	38%	62%
2018	79%	38%	63%
2017	79%	38%	63%
2016	81%	39%	66%
2015	82%	40%	66%
2014	83%	41%	68%
2013	84%	42%	69%
2012	83%	42%	69%
2011	84%	42%	71%
2010	85%	44%	73%
2009	87%	44%	73%
2008	89%	44%	75%
2007	90%	45%	76%
2006	90%	47%	77%
2005	92%	48%	79%
2004	93%	48%	80%
2003	93%	49%	82%
2002	92%	50%	83%
2001	92%	52%	84%
2000	92%	53%	85%
1999	92%	54%	82%
1998	92%	56%	87%
1997	93%	57%	87%
1996	94%	57%	87%
1995	95%	58%	88%
1994	95%	59%	88%
1993	95%	60%	89%

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Hawaiian

n/a

Two or more races

View Data

Two or More Races Student Percentage Comparison Over Years (2013-2023)
Year	Mountainside Middle School	Arizona	Scottsdale Unified District (4240) School District
2023	2%	4%	3%
2022	2%	4%	3%
2021	1%	4%	2%
2020	1%	3%	1%
2019	1%	3%	1%
2018	1%	3%	1%
2017	1%	3%	1%
2016	2%	3%	1%
2015	1%	2%	1%
2014	1%	2%	1%
2013	1%	2%	1%

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All Ethnic Groups

0.45

0.66

View Data

Diversity Score Comparison Over Years (1993-2023)
Year	Mountainside Middle School	Arizona	Scottsdale Unified District (4240) School District
2023	0.40	0.65	0.56
2022	0.41	0.65	0.56
2021	0.37	0.66	0.55
2020	0.41	0.65	0.54
2019	0.41	0.65	0.54
2018	0.36	0.65	0.53
2017	0.36	0.65	0.53
2016	0.33	0.65	0.52
2015	0.32	0.64	0.51
2014	0.30	0.64	0.50
2013	0.29	0.64	0.49
2012	0.30	0.64	0.48
2011	0.29	0.65	0.46
2010	0.27	0.64	0.45
2009	0.24	0.64	0.44
2008	0.21	0.63	0.41
2007	0.19	0.63	0.40
2006	0.19	0.63	0.38
2005	0.15	0.62	0.36
2004	0.13	0.63	0.34
2003	0.13	0.63	0.32
2002	0.15	0.62	0.30
2001	0.15	0.62	0.29
2000	0.15	0.62	0.27
1999	0.15	0.60	0.29
1998	0.15	0.59	0.24
1997	0.13	0.58	0.23
1996	0.12	0.58	0.23
1995	0.10	0.58	0.22
1994	0.10	0.57	0.21
1993	0.10	0.56	0.21

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Eligible for

12%

40%

View Data

Free Lunch Eligibility Comparison Over Years (2003-2023)
Year	Mountainside Middle School	Arizona	Scottsdale Unified District (4240) School District
2023	7%	39%	19%
2022	5%	29%	12%
2021	14%	42%	27%
2020	8%	43%	22%
2019	8%	43%	22%
2018	9%	42%	26%
2017	9%	42%	26%
2016	6%	33%	20%
2015	6%	34%	19%
2014	5%	36%	22%
2013	5%	37%	21%
2012	6%	36%	21%
2011	7%	36%	20%
2010	2%	38%	14%
2009	4%	39%	17%
2008	4%	29%	15%
2007	3%	32%	19%
2006	2%	37%	16%
2005	2%	40%	16%
2004	2%	37%	13%
2003	2%	9%	11%

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Eligible for

10%

View Data

Reduced-Price Lunch Eligibility Comparison Over Years (2004-2023)
Year	Mountainside Middle School	Arizona	Scottsdale Unified District (4240) School District
2023	4%	7%	5%
2021	1%	9%	4%
2020	2%	7%	4%
2019	2%	7%	4%
2018	1%	9%	3%
2017	1%	9%	3%
2016	1%	11%	3%
2015	1%	5%	3%
2014	2%	14%	4%
2013	2%	10%	4%
2012	1%	11%	4%
2011	1%	10%	3%
2010	2%	8%	3%
2009	2%	10%	5%
2008	2%	9%	4%
2007	1%	9%	4%
2006	1%	8%	4%
2005	1%	8%	4%
2004	1%	8%	3%

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School Statewide Testing

School District Name

Scottsdale Unified District (4240) School District

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

Profile last updated: 02/09/2025

Frequently Asked Questions

What is Mountainside Middle School's ranking?

Mountainside Middle School is ranked #384 out of 1,921 schools, which ranks it among the top 20% of public schools in Arizona.

What schools are Mountainside Middle School often compared to?

Mountainside Middle Schoolis often viewed alongside schools like Desert Canyon Middle School, Cocopah Middle School by visitors of our site.

What percent of students have achieved state testing proficiency in math and reading?

49% of students have achieved math proficiency (compared to the 34% AZ state average), while 56% of students have achieved reading proficiency (compared to the 40% AZ state average).

How many students attend Mountainside Middle School?

545 students attend Mountainside Middle School.

What is the racial composition of the student body?

73% of Mountainside Middle School students are White, 12% of students are Hispanic, 8% of students are Asian, 3% of students are Black, 2% of students are Two or more races, 1% of students are American Indian, and 1% of students are Hawaiian.

What is the student-teacher ratio of Mountainside Middle School?

Mountainside Middle School has a student ration of 17:1, which is equal to the Arizona state average of 17:1.

What grades does Mountainside Middle School offer ?

Mountainside Middle School offers enrollment in grades 6-8 (No virtual instruction).

What school district is Mountainside Middle School part of?

Mountainside Middle School is part of Scottsdale Unified District (4240) School District.

In what neighborhood is Mountainside Middle School located?

Mountainside Middle School is located in the Central Scottsdale neighborhood of Scottsdale, AZ. There are 8 other public schools located in Central Scottsdale.

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Quick Facts (2025-26)

Grades: 6-8
Enrollment: 545 students
Student-Teacher Ratio: 17:1
Minority Enrollment: 27%
: Top 20%
: 49% (Top 30%)
: 56% (Top 20%)
: 35% (Top 30%)
Source: National Center for Education Statistics (NCES), AZ Dept. of Education