Enrollment
138
Arizona · 2024-25 NCES data
2024-25 NCES data High school (grades 9-12) NCES 040040502053 Charter school
Cornerstone Charter School — Phoenix, AZ
Federal NCES profile for Cornerstone Charter School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators — Resource Investment Index 42/100.
📚 AP courses 10
🌟 Gifted program 30
🎓 Counselors 86
How this works: Each indicator above is scored 0–100 from federal NCES and CRDC data, then averaged into the Resource Investment Index. This measures resource allocation — staffing, programs, and support services — not standardized test scores or academic outcomes. Full methodology →
The verdict
Cornerstone Charter School earns a D Resource Investment Index (42/100) on federal resource data.
- D
- Resource Index · 42/100
- 82.7%
- free-lunch eligible
- 138
- students enrolled
School address
District: Cornerstone Charter Schoolinc (79077) · Arizona
Public location data per NCES (National Center for Education Statistics) Common Core of Data. Verify the school's current address on the NCES CCD record.
Free-lunch eligible
82.7%
vs 48.3% Arizona avg
+71% vs state
The federal record — no proprietary index, no editorial formula.
PlainSchools publishes the actual federal measurements — enrollment, staffing, demographics, discipline, and finance — straight from the NCES Common Core of Data, CRDC, and F-33 surveys. No composite rating, no opinion-based score on top. You get the same raw numbers researchers and policymakers use, with benchmarks, spending context, and equity indicators computed from the same federal datasets. Full methodology linked below.
What this school's NCES data tells you
Cornerstone Charter School reports 138 enrolled students to the National Center for Education Statistics (NCES).
Title I and federal lunch eligibility offer another window into the student body: 82.7% of pupils qualify for free meals, a proxy for household income that federal programs use to direct funding. The free-lunch share is 71% above the Arizona average and 60% above the national baseline. Counselor coverage works out to roughly 69 students per counselor, meeting the American School Counselor Association recommendation of 250:1.
On the finance side, the surrounding Cornerstone Charter Schoolinc (79077) spends $12,421 per pupil district-wide, below the Arizona average of $13,145 and below the national average of $16,593. Revenue comes 0.3% from local sources (property taxes), 82.4% from the state, and 17.3% from federal programs per the NCES F-33 finance survey. Taken together, these measurements produce a Resource Investment Index of 42/100 (D), calculated from 3 distinct NCES and CRDC indicators measuring resource allocation rather than academic outcomes.
Source: National Center for Education Statistics Common Core of Data + CRDC + F-33 · 2024-25
How Cornerstone Charter School compares
Cross-validating school-level NCES values against Arizona state and U.S. national means lets readers see whether this school is an outlier or in line with peers.
| Metric | This school | vs Arizona | Arizona avg | U.S. avg |
|---|---|---|---|---|
| Free-lunch eligible | 82.7% | ▲ 71% | 48.3% | 51.8% |
| Enrollment | 138 | top 22% | — | — |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
School size vs. every US school
Total enrollment — where this school sits by size (neither large nor small is 'better')
138 larger than 13% of 95,891 US schools
Each bar is a band; taller bars hold more US schools. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
Source U.S. Department of Education — NCES Common Core of Data · 2024-25
What the federal data reveals about equity at this school
Federal measurements — not ratings — surface the resource and opportunity picture. Below are the indicators that researchers, civil-rights monitors, and funding formulas use to assess equity.
Economic need
82.7%
free-lunch eligible
— 71% above the Arizona average of 48.3%
Above the 40% Title I schoolwide threshold — federal funds support the whole school, not individual students.
Funding equity
$12,421
per pupil, district-wide
— below Arizona avg of $13,145
Below the U.S. average per-pupil spend — funding constraints may affect programs, facilities, and staffing.
Support staff
Counselors2.0 FTE
Per 69 students — the combined health-and-guidance staffing load for this school.
Discipline context
0
in-school suspensions + 15 out-of-school
Suspension rate: 0.0 per 100 students. Combined in-school and out-of-school rate: 10.9 per 100 students. Reported via the Civil Rights Data Collection.
Overview
Enrollment 138 Top 22% in Arizona — larger than 78% of 2,186 state schools
Teachers (FTE) —
Students per teacher —
Free-lunch eligible 82.7% +71% vs state
NCES ID 040040502053
Student demographics
Hispanic or Latino 66.7%
White 11.6%
American Indian / Alaska Native 10.1%
African American 6.5%
Two or More 2.9%
Asian 2.2%
Largest group: Hispanic or Latino at 66.7% of enrollment.
Programs & staff
AP program Not offered
Counselors (FTE) 2.0
Students per counselor 69:1
Discipline & special education
In-school suspensions 0
Out-of-school suspensions 15
Funding & spending
District-wide per-pupil expenditure for Cornerstone Charter Schoolinc (79077), which includes Cornerstone Charter School.
$12,421
Per student
-6%
vs Arizona
Avg $13,145
-25%
vs U.S.
Avg $16,593
Revenue mix
Local 0.3%
State 82.4%
Federal 17.3%
Source: NCES F-33 School District Finance Survey District-level finance · FY 2021-22 Per-pupil expenditure reflects the district-wide average. Individual school budgets are not reported at the federal level.
Similar high schools in Phoenix
6 comparable high schools (grades 9-12) serving the same city.
Madison Highland Prep
Standard public school
510 students
Arizona Preparatory Academy
Alternative education program
233 students
Ombudsman - Charter West
Alternative education program
176 students
Skyline Prep High School
Alternative education program
167 students
Intelli-School - Paradise Valley
Alternative education program
63 students
Think Through Academy
Standard public school
61 students
Educator & family resources
In-depth guides on understanding NCES data, school choice, and education funding.
Understanding NCES data
How CCD, CRDC and EDFacts feed every public-school number you see.
Choose a school district
Eight signals that matter more than the overall ranking number.
How schools are funded
Title I, F-33, state aid formulas and what per-pupil spending really means.
Chronic absenteeism
Why missing 10% of school matters and how it varies by district.
Magnet vs charter vs traditional
Three school types, three funding models, three sets of trade-offs.
School discipline data
What CRDC suspension and expulsion records do and don't reveal.
Before you act on this record
Treat this page as the federal baseline — then verify locally.
- Compare Cornerstone Charter School side-by-side with another school you're considering on the same NCES measures. Compare schools
- Read the district context — spending per pupil, staffing, and equity ranking are district-level decisions that shape this school. District profile
- Confirm current enrollment windows, programs, and boundaries with the school directly — federal data lags the current school year. Choosing guide
Figures are the school's reported federal record (CCD 2024-25, CRDC 2021-22) — coverage varies by entity type, and PlainSchools does not rate or rank schools.
Frequently asked questions about Cornerstone Charter School
How many students attend Cornerstone Charter School?
Cornerstone Charter School has 138 students enrolled. It is a high school in Phoenix, AZ.
What percentage of students receive free lunch at Cornerstone Charter School?
82.7% of students at Cornerstone Charter School are eligible for free lunch, compared to the Arizona average of 48.3%.
What is the racial and ethnic makeup of Cornerstone Charter School?
The largest demographic group at Cornerstone Charter School is Hispanic or Latino at 66.7%. The school serves a diverse student body in Phoenix, AZ.
What is the Resource Investment Index for Cornerstone Charter School?
Cornerstone Charter School has a Resource Investment Index of 42/100 (D) based on 3 factors: student-teacher ratio, counselor availability. This index measures federal resource allocation — staffing levels, program availability, and support services — not standardized test scores or academic outcomes.
Is Cornerstone Charter School a good school?
Cornerstone Charter School earns a D Resource Investment Index (42/100) on federal resource data. The Resource Investment Index reflects staffing, counselor access, gifted programs, and attendance reported to NCES, not test scores or academic outcomes, so treat it as a resource snapshot rather than an overall rating.