Montessori Day 51��s Chartered - Mountainside (Ranked Top 20% for 2025-26)

Q: What is Montessori Day 51����s Chartered - Mountainside's ranking?

Montessori Day 51����s Chartered - Mountainside is ranked #223 out of 1,921 schools, which ranks it among the top 20% of public schools in Arizona.

Q: What schools are Montessori Day 51����s Chartered - Mountainside often compared to?

Montessori Day 51����s Chartered - Mountainsideis often viewed alongside schools like Franklin Phonetic Primary School-sunnyslope, Orangewood School by visitors of our site.

Q: How many students attend Montessori Day 51����s Chartered - Mountainside?

175 students attend Montessori Day 51����s Chartered - Mountainside.

Q: What is the racial composition of the student body?

53% of Montessori Day 51����s Chartered - Mountainside students are White, 36% of students are Hispanic, 6% of students are Two or more races, 2% of students are Asian, 1% of students are American Indian, 1% of students are Black, and 1% of students are Hawaiian.

Q: What grades does Montessori Day 51����s Chartered - Mountainside offer ?

Montessori Day 51����s Chartered - Mountainside offers enrollment in grades Kindergarten-8 (No virtual instruction).

Q: What school district is Montessori Day 51����s Chartered - Mountainside part of?

Montessori Day 51����s Chartered - Mountainside is part of Montessori Day 51����s Chartered Inc. (4359).

Q: In what neighborhood is Montessori Day 51����s Chartered - Mountainside located?

Montessori Day 51����s Chartered - Mountainside is located in the North Mountain Village neighborhood of Phoenix, AZ. There are 34 other public schools located in North Mountain Village.

Home > Arizona > Maricopa County > Phoenix > North Mountain Village

Montessori Day 51��s Chartered - Mountainside

9215 N 14th St
Phoenix, AZ 85020

Top 20%

Tel: (602) 943-7672

SAVE SCHOOL

Serving 175 students in grades Kindergarten-8, Montessori Day 51��s Chartered - Mountainside ranks in the top 20% of all schools in Arizona for overall test scores (math proficiency is top 20%, and reading proficiency is top 20%).

The percentage of students achieving is 50-54% (which is higher than the Arizona state average of 34%). The percentage of students achieving is 65-69% (which is higher than the Arizona state average of 40%).

Minority enrollment is 47% of the student body (majority Hispanic), which is lower than the Arizona state average of 66% (majority Hispanic).

Quick Facts (2025-26)

School Type: Charter School
Grades: Kindergarten-8
Enrollment: 175 students
Minority Enrollment: 47%
: Top 20% in AZ
: 50-54% (Top 20%)
: 65-69% (Top 10%)
: 20-29% (Top 50%)
Source: National Center for Education Statistics (NCES), AZ Dept. of Education

Top Rankings

Montessori Day 51��s Chartered - Mountainside ranks among the top 20% of public schools in Arizona for:

School Overview

Montessori Day 51��s Chartered - Mountainside's student population of 175 students has declined by 8% over five school years.

School Type

Charter School

Grades Offered

Grades Kindergarten-8
(No virtual instruction)

View Data

Distribution of Students By Grade Trends
Grade	Montessori Day 51��s Chartered - Mountainside
Kind	25
1	23
2	26
3	24
4	18
5	17
6	18
7	11
8	13

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Total Students

175 students

View Data

Total Students Trends Over Years (1999-2023)
Year	Montessori Day 51��s Chartered - Mountainside
2023	182
2022	191
2021	182
2020	192
2019	192
2018	191
2017	191
2016	173
2015	183
2014	185
2013	186
2012	184
2011	174
2010	185
2009	178
2008	197
2007	231
2006	228
2005	261
2004	262
2003	235
2002	231
2001	241
2000	241
1999	197

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Gender %

Total Classroom Teachers

n/a

School Calendar

School Rankings

Montessori Day 51��s Chartered - Mountainside ranks within the top 20% of all 1,921 schools in Arizona (based off of combined math and reading proficiency testing data).

The of Montessori Day 51��s Chartered - Mountainside is 0.59, 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)

#223 out of 1921 schools
(Top 20%)

View Data

Overall School Rank Trends Over Years (2012-2023)
Year	Montessori Day 51��s Chartered - Mountainside
2023	#223
2022	#245
2021	#218
2019	#144
2018	#260
2017	#87
2016	#137
2015	#171
2014	#270
2013	#414
2012	#494

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50-54%

34%

View Data

Math Proficiency Comparison Over Years (2012-2023)
Year	Montessori Day 51��s Chartered - Mountainside	Arizona	Montessori Day 51��s Chartered Inc. (4359)
2023	52%	34%	52%
2022	52%	35%	52%
2021	52%	32%	52%
2019	67%	45%	62%
2018	62%	45%	67%
2017	72%	42%	67%
2016	67%	39%	67%
2015	62%	38%	62%
2014	77%	63%	82%
2013	67%	63%	72%
2012	67%	63%	67%

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65-69%

40%

View Data

Reading and Language Arts Proficiency Comparison Over Years (2011-2022)
Year	Montessori Day 51��s Chartered - Mountainside	Arizona	Montessori Day 51��s Chartered Inc. (4359)
2022	67%	40%	67%
2021	62%	39%	67%
2019	82%	45%	82%
2018	72%	44%	67%
2017	77%	42%	77%
2016	67%	40%	67%
2015	62%	38%	62%
2014	92%	79%	95%
2013	92%	78%	92%
2012	87%	77%	87%
2011	77%	77%	82%

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20-29%

24%

Student-Teacher Ratio

n/a

17:1

American Indian

View Data

American Indian Student Percentage Comparison Over Years (1999-2022)
Year	Montessori Day 51��s Chartered - Mountainside	Arizona	Montessori Day 51��s Chartered Inc. (4359)
2022	1%	5%	1%
2020	1%	6%	1%
2019	1%	6%	1%
2018	1%	6%	1%
2017	1%	6%	1%
2014	1%	5%	2%
2013	1%	5%	1%
2012	1%	5%	1%
2011	1%	7%	2%
2010	2%	6%	2%
2009	1%	6%	1%
2008	1%	5%	1%
2007	1%	6%	2%
2006	4%	7%	4%
2005	5%	7%	4%
2004	4%	8%	3%
2003	3%	8%	2%
2002	3%	8%	4%
2001	2%	8%	3%
2000	2%	8%	2%
1999	1%	7%	1%

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Asian

View Data

Asian Student Percentage Comparison Over Years (1999-2023)
Year	Montessori Day 51��s Chartered - Mountainside	Arizona	Montessori Day 51��s Chartered Inc. (4359)
2023	1%	3%	1%
2022	3%	3%	4%
2021	3%	3%	6%
2020	7%	3%	8%
2019	7%	3%	8%
2018	9%	3%	6%
2017	9%	3%	6%
2016	10%	3%	7%
2015	7%	3%	6%
2014	3%	3%	4%
2013	4%	3%	7%
2012	5%	3%	6%
2011	5%	3%	6%
2010	3%	3%	5%
2009	3%	3%	6%
2008	2%	3%	4%
2007	1%	3%	3%
2006	3%	2%	5%
2005	1%	2%	5%
2004	2%	2%	5%
2003	2%	2%	4%
2002	4%	2%	4%
2001	2%	2%	4%
2000	2%	2%	3%
1999	3%	2%	6%

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Hispanic

36%

48%

View Data

Hispanic Student Percentage Comparison Over Years (1999-2023)
Year	Montessori Day 51��s Chartered - Mountainside	Arizona	Montessori Day 51��s Chartered Inc. (4359)
2023	31%	47%	30%
2022	27%	47%	22%
2021	29%	46%	21%
2020	29%	45%	23%
2019	29%	45%	23%
2018	35%	45%	28%
2017	35%	45%	28%
2016	35%	45%	27%
2015	31%	45%	24%
2014	30%	44%	26%
2013	30%	43%	24%
2012	35%	43%	28%
2011	44%	42%	34%
2010	45%	41%	40%
2009	43%	41%	36%
2008	43%	42%	37%
2007	42%	41%	37%
2006	35%	39%	30%
2005	34%	38%	26%
2004	32%	37%	24%
2003	22%	36%	19%
2002	13%	35%	11%
2001	13%	33%	11%
2000	17%	33%	15%
1999	16%	32%	13%

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Black

View Data

Black Student Percentage Comparison Over Years (2002-2023)
Year	Montessori Day 51��s Chartered - Mountainside	Arizona	Montessori Day 51��s Chartered Inc. (4359)
2023	2%	6%	2%
2022	2%	6%	4%
2021	1%	6%	3%
2020	2%	5%	3%
2019	2%	5%	3%
2018	1%	5%	2%
2017	1%	5%	2%
2016	2%	5%	4%
2014	1%	5%	2%
2013	3%	5%	5%
2012	3%	5%	6%
2011	2%	5%	4%
2010	5%	6%	5%
2009	4%	6%	4%
2008	3%	6%	4%
2007	3%	5%	4%
2006	3%	5%	5%
2005	3%	5%	5%
2004	1%	5%	2%
2003	2%	5%	3%
2002	3%	5%	4%

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White

53%

34%

View Data

White Student Percentage Comparison Over Years (1999-2023)
Year	Montessori Day 51��s Chartered - Mountainside	Arizona	Montessori Day 51��s Chartered Inc. (4359)
2023	63%	35%	64%
2022	63%	35%	62%
2021	63%	36%	64%
2020	55%	38%	56%
2019	55%	38%	56%
2018	50%	38%	55%
2017	50%	38%	55%
2016	49%	39%	57%
2015	57%	40%	62%
2014	59%	41%	60%
2013	60%	42%	60%
2012	51%	42%	53%
2011	47%	42%	53%
2010	45%	44%	48%
2009	49%	44%	53%
2008	51%	44%	54%
2007	53%	45%	54%
2006	55%	47%	56%
2005	57%	48%	60%
2004	61%	48%	66%
2003	71%	49%	72%
2002	77%	50%	77%
2001	80%	52%	79%
2000	76%	53%	76%
1999	77%	54%	78%

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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	Montessori Day 51��s Chartered - Mountainside	Arizona	Montessori Day 51��s Chartered Inc. (4359)
2023	3%	4%	2%
2022	4%	4%	7%
2021	4%	4%	6%
2020	6%	3%	9%
2019	6%	3%	9%
2018	3%	3%	7%
2017	3%	3%	7%
2016	3%	3%	4%
2015	4%	2%	4%
2014	4%	2%	5%
2013	2%	2%	3%

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All Ethnic Groups

0.59

0.66

View Data

Diversity Score Comparison Over Years (1999-2023)
Year	Montessori Day 51��s Chartered - Mountainside	Arizona	Montessori Day 51��s Chartered Inc. (4359)
2023	0.51	0.65	0.51
2022	0.53	0.65	0.56
2021	0.52	0.66	0.54
2020	0.61	0.65	0.62
2019	0.61	0.65	0.62
2018	0.62	0.65	0.62
2017	0.62	0.65	0.62
2016	0.63	0.65	0.60
2015	0.58	0.64	0.56
2014	0.57	0.64	0.57
2013	0.56	0.64	0.58
2012	0.62	0.64	0.64
2011	0.59	0.65	0.61
2010	0.60	0.64	0.61
2009	0.58	0.64	0.59
2008	0.56	0.63	0.58
2007	0.55	0.63	0.57
2006	0.59	0.63	0.59
2005	0.56	0.62	0.56
2004	0.53	0.63	0.51
2003	0.45	0.63	0.45
2002	0.39	0.62	0.39
2001	0.34	0.62	0.36
2000	0.40	0.62	0.40
1999	0.38	0.60	0.36

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Eligible for

33%

40%

View Data

Free Lunch Eligibility Comparison Over Years (2004-2023)
Year	Montessori Day 51��s Chartered - Mountainside	Arizona	Montessori Day 51��s Chartered Inc. (4359)
2023	31%	39%	31%
2022	30%	29%	27%
2021	31%	42%	28%
2020	30%	43%	26%
2019	30%	43%	26%
2018	29%	42%	25%
2017	29%	42%	25%
2016	19%	33%	17%
2014	37%	36%	29%
2013	41%	37%	30%
2012	42%	36%	34%
2011	40%	36%	33%
2010	44%	38%	40%
2009	38%	39%	32%
2008	41%	29%	36%
2007	36%	32%	30%
2006	33%	37%	27%
2005	37%	40%	28%
2004	33%	37%	23%

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Eligible for

16%

10%

View Data

Reduced-Price Lunch Eligibility Comparison Over Years (2004-2023)
Year	Montessori Day 51��s Chartered - Mountainside	Arizona	Montessori Day 51��s Chartered Inc. (4359)
2023	15%	7%	15%
2022	15%	2%	14%
2021	15%	9%	14%
2020	15%	7%	13%
2019	15%	7%	13%
2018	14%	9%	12%
2017	14%	9%	12%
2016	9%	11%	7%
2014	17%	14%	16%
2013	19%	10%	17%
2012	18%	11%	16%
2011	18%	10%	17%
2010	14%	8%	14%
2009	16%	10%	17%
2008	14%	9%	13%
2007	17%	9%	14%
2006	11%	8%	10%
2005	15%	8%	14%
2004	10%	8%	8%

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School Statewide Testing

School District Name

Montessori Day 51��s Chartered Inc. (4359)

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

Frequently Asked Questions

What is Montessori Day 51��s Chartered - Mountainside's ranking?

Montessori Day 51��s Chartered - Mountainside is ranked #223 out of 1,921 schools, which ranks it among the top 20% of public schools in Arizona.

What schools are Montessori Day 51��s Chartered - Mountainside often compared to?

Montessori Day 51��s Chartered - Mountainsideis often viewed alongside schools like Franklin Phonetic Primary School-sunnyslope, Orangewood School by visitors of our site.

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

50-54% of students have achieved math proficiency (compared to the 34% AZ state average), while 65-69% of students have achieved reading proficiency (compared to the 40% AZ state average).

How many students attend Montessori Day 51��s Chartered - Mountainside?

175 students attend Montessori Day 51��s Chartered - Mountainside.

What is the racial composition of the student body?

53% of Montessori Day 51��s Chartered - Mountainside students are White, 36% of students are Hispanic, 6% of students are Two or more races, 2% of students are Asian, 1% of students are American Indian, 1% of students are Black, and 1% of students are Hawaiian.

What grades does Montessori Day 51��s Chartered - Mountainside offer ?

Montessori Day 51��s Chartered - Mountainside offers enrollment in grades Kindergarten-8 (No virtual instruction).

What school district is Montessori Day 51��s Chartered - Mountainside part of?

Montessori Day 51��s Chartered - Mountainside is part of Montessori Day 51��s Chartered Inc. (4359).

In what neighborhood is Montessori Day 51��s Chartered - Mountainside located?

Montessori Day 51��s Chartered - Mountainside is located in the North Mountain Village neighborhood of Phoenix, AZ. There are 34 other public schools located in North Mountain Village.

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Quick Facts (2025-26)

School Type: Charter School
Grades: Kindergarten-8
Enrollment: 175 students
Minority Enrollment: 47%
: Top 20%
: 50-54% (Top 20%)
: 65-69% (Top 10%)
: 20-29% (Top 50%)
Source: National Center for Education Statistics (NCES), AZ Dept. of Education