Very Good
#324 of 2,000 schools in AZ
Top 16% in state
Keystone Montessori Charter School
School · Keystone Montessori Charter School Inc. (10878)
1025 E LIBERTY LN, Phoenix, AZ 85048
Enrollment
197
Score
7.7
Grades
1st – 9th
Enrollment
197
Score
7.7
Grades
1st – 9th
Updated
2022-23
Updated 2022-23
How this school compares
In Phoenix
#47 of 398
public schools
Arizona schools
#6 of 137
Academic performance
9.5 / 10
Exceptional
About Keystone Montessori Charter School
Keystone Montessori Charter School serves 197 students in grades 1-9 in Phoenix, offering a Montessori-based education approach within the public charter framework. The school has earned strong recognition, ranking #318 out of 2,029 Arizona schools and placing in the 84th percentile statewide with a MySchoolScout rating of 7.4 out of 10. Academically, Keystone Montessori demonstrates particular strength in English Language Arts, with 82% of students achieving proficiency or above across all grade levels.
Mathematics performance shows 52% of students meeting proficiency standards, indicating an area with room for continued growth and development. The school's location on East Liberty Lane places it within one of Phoenix's more affluent neighborhoods, where the median household income reaches $115,101 and home values average $487,200. This community shows strong educational values, with 58% of residents holding bachelor's degrees or higher and maintaining a low poverty rate of just 4.4%.
The Montessori philosophy typically emphasizes student-directed learning, mixed-age classrooms, and hands-on educational materials, though specific program details aren't detailed in available information. Keystone Montessori Charter School operates within Phoenix's dynamic urban environment, serving families in a well-established residential area that values educational excellence.
What Parents Should Know
With an enrollment of 197 students, Keystone Montessori Charter School is a smaller school where families often find a close-knit community atmosphere. Smaller settings can mean more individual attention from teachers and staff, though they may offer fewer extracurricular options than larger schools.
Keystone Montessori Charter School is a charter school — a publicly funded school that operates with more autonomy than traditional district schools. Charter schools often have distinct educational models or specialties. Parents should understand the school's specific mission, enrollment process, and how its approach differs from nearby district options.
Score Breakdown
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Keystone Montessori Charter School — Students at Keystone Montessori Charter School score 67% proficient, which is above what's typical for similar communities (expected: 38%).
Equity & Diversity
Shown separately, not included in overall scoreFree/Reduced Lunch
0.1%
Students qualifying for federal meal assistance
Test Scores AZ EDFACTS (2021-22)
Based on 6 test records from AZ state assessments. About our data
Proficiency Trend
↓ DecliningAverage proficiency (% at or above grade level) across Math & ELA over time.
* COVID-affected year — test participation was uneven nationwide. This data is weighted at 50% in the Growth score calculation.
Source: EdFacts (NCES) and state assessment data. Growth score: 5.4/10.
How Keystone Montessori Charter School Compares
See how Keystone Montessori Charter School performs across key quality dimensions compared to state benchmarks.
Performance Trends
Math proficiency has declined from 72% (2019) to 52% (2022). Reading/ELA proficiency has remained stable from 82% (2019) to 82% (2022).
Location
1025 E LIBERTY LN, Phoenix, AZ 85048
Nearby Alternatives
Families considering Keystone Montessori Charter School may also want to explore other schools in the area. Kyrene de las Lomas School (rated 8.4/10, 4.8 miles away), which scores slightly higher. Another option is Kyrene Monte Vista School (rated 7.8/10, 2.2 miles away), with a very similar rating. Additionally, Kyrene de la Sierra School (rated 7.2/10, 0.1 miles away), with a comparable rating. For more schools in Phoenix, see our Phoenix schools guide .
Nearby Schools
20 within 5.4 mi| School | Distance | Rating |
|---|---|---|
| Kyrene de la Sierra School Phoenix | 0.1 mi | 7.2 |
| Kyrene de los Cerritos School Phoenix | 1.2 mi | 6.8 |
| Kyrene Altadena Middle School Phoenix | 1.2 mi | 6.5 |
| Kyrene de la Estrella Elementary School Phoenix | 1.9 mi | 5.1 |
| Kyrene Akimel A-Al Middle School Phoenix | 2.1 mi | 6.7 |
| Kyrene Monte Vista School Phoenix | 2.2 mi | 7.8 |
| Desert Vista High School Phoenix | 2.6 mi | 6.9 |
| AHWATUKEE FOOTHILLS MONTESSORI Phoenix | 2.8 mi | — |
| Kyrene De Los Lagos School Phoenix | 3.0 mi | 6.8 |
| Kyrene Centennial Middle School Phoenix | 3.5 mi | 5.5 |
| Kyrene Digital Academy Tempe | 3.5 mi | 4.5 |
| Kyrene de la Colina School Phoenix | 3.6 mi | 5.9 |
| Kyrene de la Esperanza School Phoenix | 4.0 mi | 4.9 |
| Maxine O Bush Elementary School Phoenix | 4.9 mi | 6.3 |
| Southwest Elementary School Phoenix | 4.9 mi | 5.9 |
| Mountain Pointe High School Phoenix | 4.6 mi | 5.9 |
| South Pointe High School Phoenix | 5.3 mi | 5.2 |
| Kyrene del Milenio Phoenix | 4.5 mi | 5.7 |
| Kyrene de las Lomas School Phoenix | 4.8 mi | 8.4 |
| South Pointe Junior High School Phoenix | 5.4 mi | 6.1 |
Neighborhood Census ACS (2019-2023)
Census data for ZIP 85048 (ACS 2019-2023 5-Year Estimates) · Data sources
Median Income
$123,198
Median Home Value
$538,500
Median Rent
$1,995/mo
Population
34,113
College Educated
61.6%
Homeownership
74.3%
Avg Commute
24.1 min
Poverty Rate
4.1%
Median Age
42.5
Community Profile
The community surrounding Keystone Montessori Charter School has a median household income of $123,198. It is a well-educated community where 62% of adults hold a bachelor's degree or higher. The median home value in the area is $538,500, with a median rent of $1,995/month. The local poverty rate of 4.1% is relatively low. The average commute for residents is 24 minutes. Source: U.S. Census ACS 2022 5-Year Estimates.
Similar Schools
Schools in the same state with comparable level, size, and ratings
| School | Rating |
|---|---|
| CREO MONTESSORI SCHOOL Gilbert, AZ | 7.7 |
| 91ST PSALM CHRISTIAN SCHOOL Phoenix, AZ | 7.9 |
| VERITAS CHRISTIAN COMMUNITY SCHOOL Sierra Vista, AZ | 7.9 |
| NEW WAY ACADEMY Phoenix, AZ | 7.4 |
| THE JONES-GORDON SCHOOL Paradise Valley, AZ | 7.4 |
| TRI-CITY CHRISTIAN ACADEMY Chandler, AZ | 7.4 |
Frequently Asked Questions
Common questions about Keystone Montessori Charter School
What grades does Keystone Montessori Charter School serve?
Keystone Montessori Charter School serves students in grades 1st through 9th.
How many students attend Keystone Montessori Charter School?
Keystone Montessori Charter School has an enrollment of approximately 197 students.
How does Keystone Montessori Charter School rank in AZ?
Keystone Montessori Charter School is ranked #324 out of 2,000 schools in AZ.
What is Keystone Montessori Charter School's MySchoolScout rating?
Keystone Montessori Charter School has a composite rating of 7.7 out of 10 on MySchoolScout. This score combines academic performance, student growth, and school environment into a single score. Equity data is shown separately for context.
What are the test scores at Keystone Montessori Charter School?
Based on the most recent state assessment data, Keystone Montessori Charter School has 60.3% math proficiency and 77.0% reading/ELA proficiency.
Is Keystone Montessori Charter School a charter school?
Yes, Keystone Montessori Charter School is a charter school. Charter schools are publicly funded but independently operated, often with more flexibility in curriculum and teaching methods.
Is Keystone Montessori Charter School a Title I school?
No, Keystone Montessori Charter School is not currently a Title I school.
Neighborhood Context
- Walk Score
- 18 Car-Dependent
- Transit Score
- 20 Minimal Transit
- Bike Score
- 27 Somewhat Bikeable
- City Safety
- High (3,139/100K)
Powered by 
FBI UCR 2024. City-level (Phoenix). Data >1 year old.
Quick Facts NCES CCD (SY 2022-23)
- Grades
- 1st – 9th
- Enrollment
- 197
- Type
- regular
- Setting
- Large City
- County
- Maricopa County
- Phone
- (480) 460-7312
- Data Year
- 2023–2024
Resources & Links
District
Keystone Montessori Charter School Inc. (10878)- District Enrollment
- 197
- Schools in District
- 1
- Per-Pupil Spending
- $22,933
- District Rank
- #1 of 1
How We Rate Schools
Every school receives a composite score from 1 to 10 based on four pillars: Academic Performance (50%), Student Growth (20%), Equity (15%), and Learning Environment (15%). Scores are built from publicly available data including standardized test results, enrollment figures, and school climate indicators.
Read our full methodologyRelated reading
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