Elementary school (grades K-5) · San Jose, CA
Alpha: Cornerstone Academy Preparatory
Federal NCES profile for Alpha: Cornerstone Academy Preparatory, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 37/100.
The verdict
Alpha: Cornerstone Academy Preparatory earns 37/100 on the Resource Investment Index, with class sizes near the California median.
- #39 of 154
- elementary schools in San Jose · Resource Index
- 37
- Resource Index · Typical
- 23.1:1
- students per teacher
- 44.8%
- free-lunch eligible
Alpha: Cornerstone Academy Preparatory has class sizes near the California median. Computed live against every California school reporting to NCES.
By Resource Investment Index, Alpha: Cornerstone Academy Preparatory ranks #39 of 154 elementary schools in San Jose, CA.
School address
NCES ID 060167112639 Verify on NCES CCD record →
CCD year-over-year · 2022-23 → 2023-24
+30 students YoY
Alpha: Cornerstone Academy Preparatory grew from 520 students in 2022-23 to 550 in 2023-24 (+5.8%).
Teacher FTE added 24.2 → 24.9 across the same CCD years.
Source: NCES Common Core of Data public-school universe (2022-23, 2023-24).
Growing CCD campus
+30 students YoY 060167112639 · San Jose, CA Elementary · MID · CHARTER
554 enr · 23.1:1 · 44.8% lunch · RII 37
Nearest enrollment peer: Arvada K-8 (554 students)
Alpha: Cornerstone Academy Preparatory grew from 520 students in 2022-23 to 550 in 2023-24 (+5.8%). Teacher FTE added 24.2 → 24.9 across the same CCD years. Read with this school → · District book → · California schools → · Find another →
How Alpha: Cornerstone Academy Preparatory compares
Alpha: Cornerstone Academy Preparatory is a growing campus on CCD: ratios and free-lunch share vs California and U.S. means.
| Metric | This school | vs California | California avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 23.1:1 | ▲ 7% | 21.5:1 | 15.7:1 |
| Free-lunch eligible | 44.8% | ▼ 19% | 55.5% | 51.7% |
| Enrollment | 554 | top 38% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
Equity indicators methodology
Student demographics
Largest group: Asian at 56.9% of enrollment.
Simpson diversity index - at 54.8, Alpha: Cornerstone Academy Preparatory is more mixed than the California school average of 46.0.
Programs
District finance for Alpha: Cornerstone Academy Preparatory District reports $15,060 per pupil (NCES F-33) - open the district page for the full revenue mix.
Similar elementary schools in San Jose
6 comparable elementary schools (grades K-5) serving the same city.
Nationwide elementary schools with similar size or staffing
Out-of-state peers matched by enrollment and by student-teacher ratio, not the same-city or same-district lists above.
Similar enrollment (~554 students)
Frequently asked questions about Alpha: Cornerstone Academy Preparatory
How many students attend Alpha: Cornerstone Academy Preparatory?
Alpha: Cornerstone Academy Preparatory has 554 students enrolled. It is an elementary school in San Jose, CA. CCD year-over-year: 520 (2022-23) → 550 (2023-24), up 30.
What is the student-teacher ratio at Alpha: Cornerstone Academy Preparatory?
The student-teacher ratio at Alpha: Cornerstone Academy Preparatory is 23.1:1, which is 7% higher than the California average of 21.5:1 and 47% higher than the national average of 15.7:1.
What percentage of students receive free lunch at Alpha: Cornerstone Academy Preparatory?
44.8% of students at Alpha: Cornerstone Academy Preparatory are eligible for free lunch, compared to the California average of 55.5%.
What is the racial and ethnic makeup of Alpha: Cornerstone Academy Preparatory?
The largest demographic group at Alpha: Cornerstone Academy Preparatory is Asian at 56.9% of enrollment, in San Jose, CA. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 54.8/100.
What is the Resource Investment Index for Alpha: Cornerstone Academy Preparatory?
Alpha: Cornerstone Academy Preparatory has a Resource Investment Index of 37/100 (typical reported resources relative to schools nationally) based on 3 factors: student-teacher ratio, gifted-program reporting, chronic absenteeism. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Alpha: Cornerstone Academy Preparatory rank among elementary schools in San Jose?
By Resource Investment Index, Alpha: Cornerstone Academy Preparatory ranks #39 of 154 elementary schools in San Jose, CA. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all elementary schools in San Jose on the city page.
What other schools are in Alpha: Cornerstone Academy Preparatory District?
None; Alpha: Cornerstone Academy Preparatory District is a single-school charter district, and Alpha: Cornerstone Academy Preparatory is its only campus.