Keystone Montessori Charter School serves 185 students in grades 1-9.
Keystone Montessori Charter School placed in the top 10% of all schools in Arizona for overall test scores (math proficiency is top 10%, and reading proficiency is top 10%) for the 2020-21 school year.
The percentage of students achieving proficiency in math is 55-59% (which is higher than the Arizona state average of 32%) for the 2020-21 school year. The percentage of students achieving proficiency in reading/language arts is 65-69% (which is higher than the Arizona state average of 39%) for the 2020-21 school year.
Minority enrollment is 45% of the student body (majority Hispanic), which is lower than the Arizona state average of 65% (majority Hispanic).
- School Type: Charter School
- Grades: 1-9
- Enrollment: 185 students
- Minority Enrollment: 45%
- Overall Testing Rank: Top 10% in AZ
- Math Proficiency: 55-59% (Top 10%)
- Reading Proficiency: 65-69% (Top 10%)
- Source: National Center for Education Statistics (NCES), AZ Dept. of Education
Keystone Montessori Charter School ranks among the top 20% of public schools in Arizona for:
Reading/Language Arts Proficiency
Keystone Montessori Charter School's student population of 185 students has declined by 20% over five school years.
Total Classroom Teachers
Students by Grade
Keystone Montessori Charter School is ranked within the top 10% of all 1,854 schools in Arizona (based off of combined math and reading proficiency testing data) for the 2020-21 school year.
The diversity score of Keystone Montessori Charter School is 0.62, which is less than the diversity score at state average of 0.65. The school's diversity has stayed relatively flat over five school years.
Definition of Terms 2021-2022 School Year Data
State Level (AZ)
Overall Testing Rank
#149 out of 1854 schools
Math Test Scores (% Proficient)
Reading/Language Arts Test Scores (% Proficient)
Student : Teacher Ratio
Two or more races
All Ethnic Groups
School Statewide Testing
School District Name
Source: 2021-2022 (latest school year available) National Center for Education Statistics (NCES), AZ Dept. of Education
Frequently Asked Questions
What is Keystone Montessori Charter School's ranking?
Keystone Montessori Charter School is ranked #149 out of 1,854 schools, which ranks it among the top 10% of public schools in Arizona.
What percent of students have achieved state testing proficiency in math and reading?
55-59% of students have achieved math proficiency (compared to the 32% AZ state average), while 65-69% of students have achieved reading proficiency (compared to the 39% AZ state average).
How many students attend Keystone Montessori Charter School?
185 students attend Keystone Montessori Charter School.
What is the racial composition of the student body?
55% of Keystone Montessori Charter School students are White, 26% of students are Hispanic, 9% of students are Asian, 5% of students are Black, and 5% of students are Two or more races.
What grades does Keystone Montessori Charter School offer ?
Keystone Montessori Charter School offers enrollment in grades 1-9
What school district is Keystone Montessori Charter School part of?
Keystone Montessori Charter School is part of Keystone Montessori Charter School Inc. (10878) School District.
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