Enrollment
433
California · 2024-25 NCES data
Elementary school (grades K-5) · El Cajon, CA
Kidinnu Academy
Federal NCES profile for Kidinnu Academy, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 15/100.
2024-25 NCES dataElementary school (grades K-5)NCES 060249514409Charter school
👥 S:T ratio 0
🌟 Gifted program 30
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Kidinnu Academy earns 15/100 on the Resource Investment Index, with class sizes larger than 99% of California schools. It is also less racially and ethnically mixed than most California schools.
- #23 of 24
- elementary schools in El Cajon · Resource Index
- 15
- Resource Index · Lower
- 39.4:1
- large classes for California
- 89.4%
- free-lunch eligible
Kidinnu Academy has class sizes larger than 99% of California schools. Computed live against every California school reporting to NCES.
By Resource Investment Index, Kidinnu Academy ranks #23 of 24 elementary schools in El Cajon, CA.
School address
District: Kidinnu Academy District · California
NCES ID 060249514409 Verify on NCES CCD record →
Teachers (FTE)
11.0
Federal CCD staff survey
Students per teacher
39.4:1
vs 21.5:1 California avg
+83% vs state
Free-lunch eligible
89.4%
vs 55.5% California avg
+61% vs state
Student-teacher ratio in context
How Kidinnu Academy compares with California and U.S. medians
What stands out at Kidinnu Academy
Kidinnu Academy is a high-poverty, mid-sized charter elementary school in El Cajon, California, enrolling 433 students.
Class loads run heavy: 39.4:1 is larger than about 99% of California schools and 83% above the 21.5:1 state mean, so each teacher carries more students than is typical.
Economic need is high: 89.4% of students qualify for free meals, 61% above the California average, a Title I-weighted population that federal funding formulas prioritise.
With 433 students, its enrollment sits close to the California median campus size.
Its Resource Investment Index trails 91% of the 9,998 California schools with a score on record, one of the lower results on this measure.
Among 1,422 similarly sized, similarly resourced-need California schools statewide, it ranks #1,220, in the lower tier once campus size and economic need are matched.
Its student body is predominantly White (98% of enrollment), among the less diverse in the state (diversity index 3/100).
The surrounding Kidinnu Academy District spends $9,486 per pupil, 43% below the California average, a leaner-resourced district than most.
Among El Cajon's elementary schools, it stands alongside Naranca Elementary (985 students): Kidinnu Academy is smaller than that campus by headcount and runs heavier classes (39.4:1 vs 30.8:1).
Kidinnu Academy District is a single-school charter district, so Kidinnu Academy 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 Kidinnu Academy compares
Kidinnu Academy on the metrics families compare, against California and U.S. means.
| Metric | This school | vs California | California avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 39.4:1 | ▲ 83% | 21.5:1 | 15.7:1 |
| Free-lunch eligible | 89.4% | ▲ 61% | 55.5% | 51.7% |
| Enrollment | 433 | top 55% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
39.4:1
Leaner classes than 1% of US schools, heavier class loads than most.
433
Bigger than 52% of US schools by enrollment, mid-sized for the country.
Equity indicators (what these measure)
Economic need
89.4%
free-lunch eligible
- 61% above the California average of 55.5%
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.
Staffing depth
39.4:1
students per teacher
- 83% above state mean
Top 99% in California - lower ratio than 1% of state schools
Well above 20:1, one of the more stretched staffing loads nationally relative to enrollment.
Funding equity
$9,486
per pupil, district-wide
- below California avg of $16,509
Well below the U.S. average per-pupil spend, a notably leaner funding position that may affect programs, facilities, and staffing.
Support staff
Counselors0.0 FTE
Student-support staffing from the Civil Rights Data Collection.
Discipline context
0
in-school suspensions + 0 out-of-school
Suspension rate: 0.0 per 100 students. Combined in-school and out-of-school rate: 0.0 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
White 98.4%
Hispanic or Latino 1.6%
Largest group: White at 98.4% of enrollment.
Student-body diversity index 3.1/100
Simpson diversity index - at 3.1, Kidinnu Academy is less mixed than the California school average of 46.0.
Programs
Funding & spending
District-wide per-pupil expenditure for Kidinnu Academy District, which includes Kidinnu Academy.
$9,486
Per student
-43%
vs California
Avg $16,509
-43%
vs U.S.
Avg $16,593
Revenue mix
Local 15.7%
State 75.1%
Federal 9.2%
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 elementary schools in El Cajon
6 comparable elementary schools (grades K-5) serving the same city.
Naranca Elementary
Standard public school
985 students 30.8:1 students per teacher
Lexington Elementary
Standard public school
878 students 27.4:1 students per teacher
Johnson Elementary
Standard public school
766 students 28.4:1 students per teacher
Chase Avenue Elementary
Standard public school
757 students 24.4:1 students per teacher
Flying Hills School of Arts
Standard public school
742 students 26.5:1 students per teacher
Magnolia Elementary
Standard public school
703 students 29.3:1 students per teacher
Similar elementary schools statewide
Matched by enrollment size and by staffing ratio across all of California, not just this city - a different peer set than the local comparisons above.
Similar enrollment (~433 students)
Next steps
Verify locally before acting on Kidinnu Academy's federal record.
- Compare Kidinnu Academy against another school. Compare schools
- Kidinnu Academy District'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 Kidinnu Academy
How many students attend Kidinnu Academy?
Kidinnu Academy has 433 students enrolled. It is an elementary school in El Cajon, CA.
What is the student-teacher ratio at Kidinnu Academy?
The student-teacher ratio at Kidinnu Academy is 39.4:1, which is 83% higher than the California average of 21.5:1 and 151% higher than the national average of 15.7:1.
What percentage of students receive free lunch at Kidinnu Academy?
89.4% of students at Kidinnu Academy are eligible for free lunch, compared to the California average of 55.5%.
What is the racial and ethnic makeup of Kidinnu Academy?
The largest demographic group at Kidinnu Academy is White at 98.4% of enrollment, in El Cajon, CA.
What is the Resource Investment Index for Kidinnu Academy?
Kidinnu Academy has a Resource Investment Index of 15/100 (lower reported resources relative to schools nationally) based on 2 factors: student-teacher ratio. Not a test-score or academic measure (national median ~41/100, see methodology). Limited indicators were available, so the index reflects partial data.
How does Kidinnu Academy rank among elementary schools in El Cajon?
By Resource Investment Index, Kidinnu Academy ranks #23 of 24 elementary schools in El Cajon, 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 El Cajon on the city page.
Is Kidinnu Academy a good school?
Kidinnu Academy earns 15/100 on the Resource Investment Index, with class sizes larger than 99% of California schools. It is also less racially and ethnically mixed than most California schools. 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 Kidinnu Academy District?
None; Kidinnu Academy District is a single-school charter district, and Kidinnu Academy 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.