Very Good
#560 of 2,006 schools in AZ
Top 28% in state
Keystone Montessori Charter School
School · Keystone Montessori Charter School Inc. (10878) · Phoenix, AZ
A charter school in Phoenix, AZ where students score 29 points above what's typical for similar communities.
1025 E LIBERTY LN, Phoenix, AZ 85048
- Math 52% proficient (2022)
- Reading 82% proficient (2022)
- 2/5 advanced STEM subjects
Academics
Full Profile · 4/4 metricsView breakdown
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Students at Keystone Montessori Charter School score 67% proficient, which is above what's typical for similar communities (expected: 38%).
2022 EdFacts proficiency
Most recent published year. School vs. AZ average.
Trend
↓ DecliningProficiency has fallen 10 points since 2019, to 67% in 2022, across a 14-year record (2009–2022).
Show all 14 years
Multi-year averages used by the rating model: math 75% (multi-year average, 2009-2022) · reading/ELA 85% (multi-year average, 2009-2022)
* COVID-affected year — test participation was uneven nationwide. This data is weighted at 50% in the Growth score calculation.
Based on 28 test records from AZ state assessments and EdFacts (NCES).
How we rate schools
A clear 1–10 score built from public data — growth, academics, and learning environment. No hidden criteria, no pay-to-play.
See how we rateThe neighborhood
Where Keystone Montessori Charter School sits, and what the surrounding area looks like.
Nearby same-level schools are colored by their score. Pins are locations, not attendance boundaries. Open the Phoenix map →
Getting around & local context
- Walk 18Car-Dependent
- Transit 20Minimal Transit
- Bike 27Somewhat Bikeable
- City Safety: High3,139/100K
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FBI Uniform Crime Reporting · 2024 · city context (Phoenix), not school-level safety or attendance eligibility. Source details
Source period: 2024. Freshness not available.
Area profileU.S. Census ACS 5-year estimates (ACS 2019–2023 5-year estimates)
Median income
$123,198
Median home value
$538,500
Median rent
$1,995/mo
College educated
61.6%
Homeownership
74.3%
Poverty rate
4.1%
ACS 2019–2023 5-year estimates for the ZCTA associated with school ZIP 85048; this is area context, not an attendance boundary.
Programs & students
Programs & Offerings
Compare nearby
Nearby same-level schools
0 from verified nearby records
No verified same-level alternatives
The available nearby set has no same-level school with a verified grade span.
Keystone Montessori Charter School Inc. (10878)
- Schools in district
- 1
- Rank in district
- #1 of 1
- District spending per student
- $22,933NCES F-33 · FY 2023 · This annual source is three years behind the current year.
- District child poverty rate
- The source release did not match this district identifier.
Keystone Montessori Charter School is listed in Keystone Montessori Charter School Inc. (10878); a district label does not verify attendance for an address.
About Keystone Montessori Charter School
Keystone Montessori Charter School is a public school in Phoenix, AZ, part of Keystone Montessori Charter School Inc. (10878), serving approximately 197 students in grades 1st-9th. It holds a MySchoolScout rating of 7.4 out of 10 and ranks #560 of 2,006 schools in AZ. State assessment records show 75% math proficiency (multi-year average, 2009-2022) and 85% reading/ELA proficiency (multi-year average, 2009-2022).
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 ranks #560 of 2,006 schools in AZ.
What is Keystone Montessori Charter School's MySchoolScout rating?
Keystone Montessori Charter School has a current MySchoolScout rating of 7.4 out of 10. This score combines the level-appropriate components shown in the rating breakdown; equity data is shown separately for context.
What are the test scores at Keystone Montessori Charter School?
Based on loaded state assessment records, Keystone Montessori Charter School has 75% math proficiency (multi-year average, 2009-2022) and 85% reading/ELA proficiency (multi-year average, 2009-2022).
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.
School factsNCES Common Core of Data (CCD) (SY 2023–24)
- Grades
- 1st – 9th
- Enrollment
- 197
- Type
- regular
- Setting
- Large City
- County
- Maricopa County
- Phone
- (480) 460-7312
- Area population (ZIP 85048)
- 34,113
- Area average commute
- 24.1 min
- Area median age
- 42.5
Official sources & links
About this school's data
Every number on this page comes from a published source with a stated period. Where a source is partial, aging, or describes a surrounding area rather than the school, that limitation is named below.
- School directory (enrollment, grades, staff, contact)
- NCES Common Core of Data (CCD) · SY 2023–24 · Medium confidence
- Source period: SY 2023–24. A newer release may be available.
- MySchoolScout rating and rank
- MySchoolScout ranking model · Low confidence
- Vintage not available. Do not use this measure alone.
- Derived as a weighted blend of the component scores shown in Academics from state assessment, EdFacts growth, and NCES resource records.
- Math proficiency
- State department of education · 2022 EdFacts · Low confidence
- Older source: 2022 EdFacts. Use as historical context.
- Available for part of the eligible units; results may not represent the full area.
- Derived from source records rather than read directly from one field.
- Reading/ELA proficiency
- State department of education · 2022 EdFacts · Low confidence
- Older source: 2022 EdFacts. Use as historical context.
- Available for part of the eligible units; results may not represent the full area.
- Derived from source records rather than read directly from one field.
- Student progress (growth)
- NCES EdFacts · Mixed source periods · Low confidence
- Vintage not available. Do not use this measure alone.
- Available for part of the eligible units; results may not represent the full area.
- Derived as the fitted year-over-year slope of proficiency from multi-year assessment records.
- Neighborhood (income, housing, education)
- U.S. Census ACS 5-year estimates · ACS 2019–2023 5-year estimates · Low confidence
- Older source: ACS 2019–2023 5-year estimates. Use as historical context.
- Reported for the ZCTA for ZIP 85048; this does not measure the attendance area.
- Programs (AP/IB, athletics, gifted)
- CRDC via Urban Institute · SY 2021–22 · Medium confidence
- Available for part of the eligible units; results may not represent the full area.
- Source period: SY 2021–22. A newer release may be available.
Evidence periods: Rating mixed/unknown input periods; assessments multi-year average, 2009-2022; directory SY 2023–24
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