Enrollment
138
Arizona · 2024-25 NCES data
High school (grades 9-12) · Phoenix, AZ
Cornerstone Charter School
Federal NCES profile for Cornerstone Charter School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 42/100.
2024-25 NCES dataHigh school (grades 9-12)NCES 040040502053Charter school
📚 AP courses 10
🌟 Gifted program 30
🎓 Counselors 86
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Cornerstone Charter School earns 42/100 on the Resource Investment Index on federal resource data.
- #7 of 65
- high schools in Phoenix · Resource Index
- 42
- Resource Index · Typical
- 82.7%
- free-lunch eligible
- 138
- students enrolled
By Resource Investment Index, Cornerstone Charter School ranks #7 of 65 high schools in Phoenix, AZ.
School address
District: Cornerstone Charter Schoolinc (79077) · Arizona
NCES ID 040040502053 Verify on NCES CCD record →
Free-lunch eligible
82.7%
vs 48.3% Arizona avg
+71% vs state
What stands out at Cornerstone Charter School
Cornerstone Charter School is a high-poverty, mid-sized charter high school in Phoenix, Arizona, enrolling 138 students.
Economic need is high: 82.7% of students qualify for free meals, 71% above the Arizona average, a Title I-weighted population that federal funding formulas prioritise.
Enrollment of 138 puts it in the smaller third of Arizona schools by headcount.
Its Resource Investment Index outscores 93% of the 2,064 Arizona schools with a score on record, a top-tier result on this measure.
Among 59 similarly sized, similarly resourced-need Arizona schools statewide, it ranks #3, a top-tier result once campus size and economic need are matched.
Its student body is led by Hispanic or Latino (67%) and White (12%) (diversity index 53/100).
No Advanced Placement courses are reported for this campus in the federal data.
Counselor coverage is strong, about 69 students per counselor, inside the American School Counselor Association's recommended 250:1.
Its district draws 17.3% of revenue from federal sources, an above-typical federal share that tends to track a higher-need student population.
Among Phoenix's high schools, it stands alongside Madison Highland Prep (510 students): Cornerstone Charter School is smaller than that campus by headcount.
Cornerstone Charter Schoolinc (79077) is a single-school charter district, so Cornerstone Charter School operates independently rather than alongside district-mates.
Sourced from NCES CCD, CRDC, and F-33 (federal records, not a quality verdict). How we source and compute this.
Source: National Center for Education Statistics Common Core of Data + CRDC + F-33 · 2024-25
How Cornerstone Charter School compares
Cornerstone Charter School on the metrics families compare, against Arizona and U.S. means.
| Metric | This school | vs Arizona | Arizona avg | U.S. avg |
|---|---|---|---|---|
| Free-lunch eligible | 82.7% | ▲ 71% | 48.3% | 51.7% |
| Enrollment | 138 | top 78% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
138
Bigger than 13% of US schools by enrollment, a small campus.
Equity indicators (what these measure)
Economic need
82.7%
free-lunch eligible
- 71% above the Arizona average of 48.3%
Well above the 40% Title I schoolwide threshold, among the highest-need profiles in the state; federal funds support the whole school, not individual students.
Funding equity
$12,421
per pupil, district-wide
- below Arizona avg of $13,145
Well below the U.S. average per-pupil spend, a notably leaner funding position that 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
- Common Core of Data (June 2026): enrollment, staffing, and the student-teacher ratio above.
- Civil Rights Data Collection: discipline counts and program access (AP, gifted, special education).
- F-33 School District Finance Survey: the district-wide per-pupil spending figures below.
Three separate federal collections, each on its own reporting cadence - which is why this school's numbers line up on a consistent basis against every other school and state on this site, rather than mixing figures pulled from different survey years.
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.
Student-body diversity index 52.6/100
Simpson diversity index - at 52.6, Cornerstone Charter School is more mixed than the Arizona school average of 47.2.
Programs
AP program Not offered
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
Similar high schools statewide
Matched by enrollment size and by staffing ratio across all of Arizona, not just this city - a different peer set than the local comparisons above.
Next steps
Verify locally before acting on Cornerstone Charter School's federal record.
- Compare Cornerstone Charter School against another school. Compare schools
- Cornerstone Charter Schoolinc (79077)'s spending and staffing shape this school. District profile
- Confirm current enrollment and boundaries with the school. Choosing guide
Federal record (CCD 2024-25, CRDC 2021-22) - PlainSchools assigns no subjective rating; the composite quality score is a transparent, reproducible index computed from this cited federal data.
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% of enrollment, in Phoenix, AZ. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 52.6/100.
What is the Resource Investment Index for Cornerstone Charter School?
Cornerstone Charter School has a Resource Investment Index of 42/100 (typical reported resources relative to schools nationally) based on 3 factors: student-teacher ratio, counselor availability. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Cornerstone Charter School rank among high schools in Phoenix?
By Resource Investment Index, Cornerstone Charter School ranks #7 of 65 high schools in Phoenix, AZ. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all high schools in Phoenix on the city page.
Is Cornerstone Charter School a good school?
Cornerstone Charter School earns 42/100 on the Resource Investment Index on federal resource data. This is a resource snapshot, not an academic rating; see the Resource Investment Index question above for what the number does and doesn't measure.
What other schools are in Cornerstone Charter Schoolinc (79077)?
None; Cornerstone Charter Schoolinc (79077) is a single-school charter district, and Cornerstone Charter School is its only campus.
Related tools
Every figure on PlainSchools is rendered directly from the source NCES, CRDC and F-33 federal records, no number is typed in by an editor. Each school's figures reflect its most recent NCES/CRDC submission on file. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of June 2026.