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D

Cornerstone Charter School

PublicHighGrades 9–12CharterAlternative Education School

7107 N Black Canyon Hwy, Phoenix, AZ 85021 · (602) 595-2198

Phoenix’s School Grade B+ better than 73% of Arizona school districts

Directions
Students
138
Students per teacher
23:1
Setting
City
Grades
9–12
The gist

What stands out about Cornerstone Charter School

  • Its own letter, D: reading and math results near the bottom of Arizona’s public schools
  • Math proficiency 21 pts below the state
  • Reading / language arts 29 pts below the state
  • Larger classes: 23 students per teacher
  • Enrollment down 32.4% since 2020–21

Test scores

2020–21
Math proficiency10%
State average 31.2%
Reading / language arts10%
State average 38.5%

Its own letter, D, places these results among Arizona’s 1,781 public schools with results. Source: EDFacts via Urban Institute Education Data Portal (SY2020-21).

Location

Directions ↗

7107 N Black Canyon Hwy, Phoenix

Students

Enrollment by grade
Grade 915
Grade 1027
Grade 1129
Grade 1267
Enrollment over time
204’20
178’21
150’22
140’23
138’24

Down 32.4% since 2020–21.

Who goes here
Hispanic 67%White 12%American Indian/Alaska Native 10%Black 7%Two or more races 3%Asian 2%

As reported to NCES, share of students with a reported race or ethnicity.

Parents talk

Questions and answers about Cornerstone Charter School from Phoenix families.

School facts: U.S. Department of Education (NCES), 2024–2025 school year. Test scores: EDFacts via Urban Institute Education Data Portal (SY2020-21). A school’s letter is our own summary of its reading and math results against Arizona’s other public schools; Phoenix’s School Grade is built from its districts’ results. Map: © OpenStreetMap contributors.