Keystone Montessori Charter School

Other Charter No virtual instruction PHOENIX, AZ Grades 01–09 City: Large Phoenix-Mesa-Chandler, AZ SchoolScore™ A (80.5)
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Keystone Montessori Charter School
PHOENIX, AZ 85048
Other ★ Charter No virtual instruction Grades 01–09 SchoolScore™ A (80.5)
203
Students
13.0
Teachers
15.6:1
Student:Teacher
(480)460-7312
Phone
http://www.keystonemontessori.com/
Website

Keystone Montessori Charter School is a public charter school administered by the Keystone Montessori Charter School Inc. (10878) district in PHOENIX, ARIZONA, providing education at the Other level for students in grades 01–09.

Key statistics: 203 students enrolled; a 15.6:1 student-to-teacher ratio.

The school is classified as City: Large by the NCES locale classification system.

Data sourced from the National Center for Education Statistics (NCES) Common Core of Data (CCD), the definitive federal database of U.S. public schools, updated annually.

vs Arizona Other School Average
Enrollment
203.0
State avg: 636.0
▼ 68% worse
Student:Teacher Ratio
15.62:1
State avg: 21.8:1
▼ 28% better
School Details
School Name
Keystone Montessori Charter School
NCESSCH ID
040016501755
State School ID
AZ-10878-10884
School Type
Regular School
Level
Other
Status
Open
Charter
Yes
Charter Auth
CHARTER BOARD (CSB)
Virtual
No virtual instruction
NSLP Status
No
Shared Time
No
School Year
2024-2025
Location
Address
1025 E LIBERTY LN
City
PHOENIX
State
Arizona
ZIP Code
85048
County
Maricopa County
Metro Area
Phoenix-Mesa-Chandler, AZ
Metro Type
Metropolitan
Locale
City: Large
Cong. District
0404
State Leg. Upper
04012
State Leg. Lower
04012
Latitude
33.2957
Longitude
-112.0606
Grades Offered
1st 2nd 3rd 4th 5th 6th 7th 8th 9th
👥
203
Total Students
👩‍🏫
13.0
Teachers FTE
📐
15.6:1
Student:Teacher
Enrollment by Grade
13.0
Teachers (FTE)
Full Staff Breakdown
MetricValue
Teachers (FTE)13.0
🍽️
Lunch program data not available
District Info
District Name
Keystone Montessori Charter School Inc. (10878)
LEAID
0400165
State LEA ID
AZ-10878
Phone
(480)460-7312
Website
http://www.keystonemontessori.com/
Type
Independent charter district
Status
Open
City
PHOENIX
View All District Schools
District Finance (F-33)
Total Revenue
$5,223K
Federal Revenue
$503K
State Revenue
$2,358K
Local Revenue
$2,362K
Total Expenditure
$4,391K
Instruction Exp.
$2,813K
Support Services
$1,292K
Other Current Exp.
–
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© 2026 SchoolFinderUSA. All rights reserved. Data from NCES.
Geographic

Nearby Schools

Public schools within ~12 miles of Keystone Montessori Charter School

1
Kyrene de la Sierra School
PHOENIX · Elementary
0.1 mi
2
Kyrene de los Cerritos School
PHOENIX · Elementary
1.2 mi
3
Kyrene Altadena Middle School
Phoenix · Middle
1.2 mi
4
Kyrene de la Estrella Elementary School
PHOENIX · Elementary
1.9 mi
5
Kyrene Akimel A-Al Middle School
PHOENIX · Middle
2.1 mi
6
Kyrene Monte Vista School
PHOENIX · Elementary
2.2 mi
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Public other in Arizona with similar enrollment to Keystone Montessori Charter School

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Students
18.87:1
Ratio
–
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Students
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Ratio
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New World Educational Center
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Students
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Ratio
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NUSD Online
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Students
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Ratio
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Leading Edge Academy at East Mesa
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Students
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Westland School
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Students
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Ratio
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Aspire Deer Valley's Online Academy
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Students
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Ratio
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Southside Community School
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FAQ

Frequently Asked Questions

Common questions about Keystone Montessori Charter School, answered using official NCES data.

How many students attend Keystone Montessori Charter School?
203 students are enrolled at Keystone Montessori Charter School, according to NCES Common Core of Data.
How many teachers does Keystone Montessori Charter School have?
Keystone Montessori Charter School has 13.0 full-time equivalent (FTE) teachers. The student-to-teacher ratio is 15.6:1.
What grades does Keystone Montessori Charter School serve?
Keystone Montessori Charter School serves grades 01 through 09.
Is Keystone Montessori Charter School a charter school?
Keystone Montessori Charter School is a charter school.
What metro area is Keystone Montessori Charter School located in?
Keystone Montessori Charter School is located in the Phoenix-Mesa-Chandler, AZ metropolitan area.
What school district does Keystone Montessori Charter School belong to?
Keystone Montessori Charter School is part of the Keystone Montessori Charter School Inc. (10878) school district.
How much does Keystone Montessori Charter School Inc. (10878) spend per student?
The Keystone Montessori Charter School Inc. (10878) district spends approximately $21,630,542 per student annually, based on F-33 finance survey data.
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