Serving 184 students in grades Kindergarten-6, Mountain School ranks in the top 5% of all schools in Arizona for overall test scores (math proficiency is top 10%, and reading proficiency is top 10%).
The percentage of students achieving proficiency in math is 60-64% (which is higher than the Arizona state average of 34%). The percentage of students achieving proficiency in reading/language arts is 75-79% (which is higher than the Arizona state average of 40%).
The student-teacher ratio of 10:1 is lower than the Arizona state level of 17:1.
Minority enrollment is 25% of the student body (majority Hispanic), which is lower than the Arizona state average of 67% (majority Hispanic).
Quick Facts (26-27)
- School Type: Charter School
- Grades: Kindergarten-6
- Enrollment: 184 students
- Student-Teacher Ratio: 10:1
- Minority Enrollment: 25%
- Overall Testing Rank: Top 5% in AZ
- Math Proficiency: 60-64% (Top 10%)
- Reading Proficiency: 75-79% (Top 5%)
- Science Proficiency: 40-59% (Top 20%)
- Source: National Center for Education Statistics (NCES), AZ Dept. of Education
Top Rankings
Mountain School ranks among the top 20% of public schools in Arizona for:
Category
Attribute
Overall Rank
Math Proficiency
Reading/Language Arts Proficiency
Science Proficiency
School Overview
Mountain School's student population of 184 students has stayed relatively flat over five school years.
The teacher population of 18 teachers has stayed relatively flat over five school years.
School Type
Grades Offered
Grades Kindergarten-6
(No virtual instruction)
(No virtual instruction)
Total Students
184 students
Showing 2014–2025. Full 27-year historical data available below ↓
Total Classroom Teachers
18 teachers
Year Founded
1980
School Calendar
School Motto
Caring, cohesive environment that has the best interests of students and staff at heart
School Rankings
Mountain School ranks within the top 5% of all 1,921 schools in Arizona (based off of combined math and reading proficiency testing data).
The diversity score of Mountain School is 0.42, 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.
Overall Testing Rank
#92 out of 1921 schools
(Top 5%)
(Top 5%)
Showing 2013–2023. Full 14-year historical data available below ↓
Math Test Scores (% Proficient)
60-64%
34%
Showing 2013–2023. Full 14-year historical data available below ↓
Reading/Language Arts Test Scores (% Proficient)
75-79%
40%
Showing 2012–2022. Full 13-year historical data available below ↓
Science Test Scores (% Proficient)
40-59%
24%
Student-Teacher Ratio
10:1
17:1
American Indian
5%
5%
Showing 2014–2025. Full 25-year historical data available below ↓
Asian
2%
3%
Showing 2014–2025. Full 22-year historical data available below ↓
Hispanic
12%
49%
Showing 2014–2025. Full 27-year historical data available below ↓
White
75%
33%
Showing 2014–2025. Full 27-year historical data available below ↓
Two or more races
6%
4%
All Ethnic Groups
Showing 2014–2025. Full 27-year historical data available below ↓
Chronically Absent Students
(22-23)35.3%
41.2%
Eligible for Free Lunch
8%
41%
Eligible for Reduced Lunch
4%
10%
School Statewide Testing
School District Name
Source: National Center for Education Statistics (NCES), AZ Dept. of Education
Frequently Asked Questions
What is Mountain School's ranking?
Mountain School is ranked #92 out of 1,921 schools, which ranks it among the top 5% of public schools in Arizona.
What schools are Mountain School often compared to?
Mountain Schoolis often viewed alongside schools like Haven Montessori Charter School, Montessori Charter School Of Flagstaff - Campus, Basis Flagstaff by visitors of our site.
What percent of students have achieved state testing proficiency in math and reading?
60-64% of students have achieved math proficiency (compared to the 34% AZ state average), while 75-79% of students have achieved reading proficiency (compared to the 40% AZ state average).
How many students attend Mountain School?
184 students attend Mountain School.
What is the racial composition of the student body?
75% of Mountain School students are White, 12% of students are Hispanic, 6% of students are Two or more races, 5% of students are American Indian, and 2% of students are Asian.
What is the student-teacher ratio of Mountain School?
Mountain School has a student ration of 10:1, which is lower than the Arizona state average of 17:1.
What grades does Mountain School offer ?
Mountain School offers enrollment in grades Kindergarten-6 (No virtual instruction).
What school district is Mountain School part of?
Mountain School is part of Mountain School Inc. (4203) School District.
School Reviews
Review Mountain School. Reviews should be a few sentences in length. Please include any comments on:
- Quality of academic programs, teachers, and facilities
- Availability of music, art, sports and other extracurricular activities
Recent Articles
Can Your Child Get Into School Clubs and Activities?
Discover whether your child can access advertised school clubs and activities, including enrollment limits, tryouts, fees, transportation, scheduling conflicts, and essential questions parents should ask before choosing schools today.
Who Supervises Students When Their Teacher Is Out?
Discover who supervises students when regular teachers are absent, how schools arrange classroom coverage, what qualifications substitutes need, and which questions parents should ask about safety and learning continuity.
When the School Nurse Isn't There: Parent Guide
Learn what happens when school nurses are absent, how public schools handle medications and emergencies, and which essential questions parents should ask to protect their children's health and safety daily.
