Top Rankings
Keystone Montessori Charter School Inc. (10878) School District ranks among the top 20% of public school district in Arizona for:
Category
Attribute
Overall Rank
Highest overall rank (Top 20%)
Math Proficiency
Highest math proficiency (Top 20%)
Reading/Language Arts Proficiency
Highest reading/language arts proficiency (Top 5%)
Science Proficiency
Highest science proficiency (Top 20%)
Diversity
Most diverse schools (Top 1%)
For the 2025-26 school year, there is 1 public school serving 197 students in Keystone Montessori Charter School Inc. (10878) School District. This district's average testing ranking is 9/10, which is in the top 20% of public schools in Arizona.
ºÚÁÏÍø¹ÙÍø School in Keystone Montessori Charter School Inc. (10878) School District have an average math proficiency score of 47% (versus the Arizona public school average of 34%), and reading proficiency score of 82% (versus the 41% statewide average).
Minority enrollment is 52% of the student body (majority Hispanic), which is less than the Arizona public school average of 66% (majority Hispanic).
Overview
This School District
This State (AZ)
# Schools
1 School
2,476 Schools
# Students
197 Students
1,123,989 Students
# Teachers
n/a
50,048 Teachers
Student-Teacher Ratio
n/a
n/a
Student By Grade
District Rank
Keystone Montessori Charter School Inc. (10878) School District, which is ranked within the top 20% of all 603 school districts in Arizona (based off of combined math and reading proficiency testing data) for the 2022-2023 school year.
Overall District Rank
#62 out of 618 school districts
(Top 20%)
(Top 20%)
Math Test Scores (% Proficient)
47%
34%
Reading/Language Arts Test Scores (% Proficient)
80-84%
40%
Science Test Scores (% Proficient)
40-49%
24%
Students by Ethnicity:
Diversity Score
0.66
0.66
% American Indian
n/a
5%
% Asian
6%
3%
% Hispanic
31%
48%
% Black
4%
6%
% White
48%
34%
% Hawaiian
n/a
n/a
% Two or more races
11%
4%
All Ethnic Groups
District Revenue and Spending
The revenue/student of $18,909 is higher than the state median of $11,421. The school district revenue/student has stayed relatively flat over four school years.
The school district's spending/student of $16,782 is higher than the state median of $11,323. The school district spending/student has stayed relatively flat over four school years.
Total Revenue
$4 MM
$12,837 MM
Spending
$3 MM
$12,727 MM
Revenue / Student
$18,909
$11,421
Spending / Student
$16,782
$11,323
Best Keystone Montessori Charter School Inc. (10878) School District ºÚÁÏÍø¹ÙÍø Schools (2025-26)
School
(Math and Reading Proficiency)
(Math and Reading Proficiency)
Location
Quick Facts
Rank: #11.
Keystone Montessori Charter School
Charter School
(Math: 45-49% | Reading: 80-84%)
Rank:
Rank:
9/
Top 20%10
1025 E Liberty Ln
Phoenix, AZ 85048
(480) 460-7312
Phoenix, AZ 85048
(480) 460-7312
Gr: 1-9 | 197 students Minority enrollment: 52%
Frequently Asked Questions
How many schools belong to Keystone Montessori Charter School Inc. (10878) School District?
Keystone Montessori Charter School Inc. (10878) School District manages 1 public schools serving 197 students.
What is the rank of Keystone Montessori Charter School Inc. (10878) School District?
Keystone Montessori Charter School Inc. (10878) School District is ranked #78 out of 603 school districts in Arizona (top 20%) based off of combined math and reading proficiency testing data for the 2022-2023 school year. This district ranks in the top 20% of Arizona school districts for: Highest overall rank (Top 20%), Highest math proficiency (Top 20%), Highest reading/language arts proficiency (Top 5%), Highest science proficiency (Top 20%) and Most diverse schools (Top 1%)
What is the racial composition of students in Keystone Montessori Charter School Inc. (10878) School District?
48% of Keystone Montessori Charter School Inc. (10878) School District students are White, 31% of students are Hispanic, 11% of students are Two or more races, 6% of students are Asian, and 4% of students are Black.
What is Keystone Montessori Charter School Inc. (10878) School District's spending/student ratio?
The school district's spending/student of $16,782 is higher than the state median of $11,323. The school district spending/student has stayed relatively flat over four school years.
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