Enrollment
463
California · 2024-25 NCES data
Elementary school (grades K-5) · Altadena, CA
Odyssey Charter
Federal NCES profile for Odyssey Charter, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 29/100.
2024-25 NCES dataElementary school (grades K-5)NCES 060191508012Charter school
👥 S:T ratio 0
🌟 Gifted program 30
📋 Attendance 58
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Odyssey Charter earns 29/100 on the Resource Investment Index, with class sizes larger than 84% of California schools. It is also more racially and ethnically mixed than most California schools.
- #4 of 7
- elementary schools in Altadena · Resource Index
- 29
- Resource Index · Lower
- 25.7:1
- large classes for California
- 21.3%
- free-lunch eligible
Odyssey Charter has class sizes larger than 84% of California schools. Computed live against every California school reporting to NCES.
By Resource Investment Index, Odyssey Charter ranks #4 of 7 elementary schools in Altadena, CA.
School address
District: Odyssey Charter District · California
NCES ID 060191508012 Verify on NCES CCD record →
Teachers (FTE)
18.0
Federal CCD staff survey
Students per teacher
25.7:1
vs 21.5:1 California avg
+20% vs state
Free-lunch eligible
21.3%
vs 55.5% California avg
-62% vs state
Student-teacher ratio in context
How Odyssey Charter compares with California and U.S. medians
What stands out at Odyssey Charter
Odyssey Charter is a mid-sized charter elementary school in Altadena, California, enrolling 463 students.
Class loads run somewhat heavier than typical: 25.7:1 puts it in the larger third of California schools by student-teacher ratio.
Comparatively few students face economic hardship here, 21.3% free-meal eligibility runs 62% below the California average.
With 463 students, its enrollment sits close to the California median campus size.
Its Resource Investment Index sits near the middle of the pack among 9,998 scored California schools.
Against 1,200 statewide peers matched on enrollment and economic need, it ranks mid-pack at #824.
Its student body is led by White (45%) and Hispanic or Latino (27%), more mixed than most schools in the state (diversity index 69/100).
16.8% of students were chronically absent in the 2021-22 collection, in line with the post-pandemic national range.
The surrounding Odyssey Charter District spends $11,257 per pupil, 32% below the California average, a leaner-resourced district than most.
Its district draws 15.1% of revenue from federal sources, an above-typical federal share that tends to track a higher-need student population.
Among Altadena's elementary schools, it stands alongside Jackson Elementary (658 students): Odyssey Charter is smaller than that campus by headcount and runs leaner classes (25.7:1 vs 26.3:1).
Odyssey Charter District is a single-school charter district, so Odyssey Charter 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 Odyssey Charter compares
Odyssey Charter on the metrics families compare, against California and U.S. means.
| Metric | This school | vs California | California avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 25.7:1 | ▲ 20% | 21.5:1 | 15.7:1 |
| Free-lunch eligible | 21.3% | ▼ 62% | 55.5% | 51.7% |
| Enrollment | 463 | top 51% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
25.7:1
Leaner classes than 4% of US schools, heavier class loads than most.
463
Bigger than 57% of US schools by enrollment, mid-sized for the country.
Equity indicators (what these measure)
Economic need
21.3%
free-lunch eligible
- 62% below the California average of 55.5%
Below the 40% Title I threshold, among the lower-need profiles in the state; federal aid targets individual qualifying students rather than schoolwide programs.
Staffing depth
25.7:1
students per teacher
- 20% above state mean
Top 84% in California - lower ratio than 16% of state schools
Well above 20:1, one of the more stretched staffing loads nationally relative to enrollment.
Engagement
16.8%
chronically absent (missed 10%+ of school days)
In the 15-20% range, nearing the "high" absenteeism threshold.
Funding equity
$11,257
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 + 16 out-of-school
Suspension rate: 0.0 per 100 students. Combined in-school and out-of-school rate: 3.5 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 45.1%
Hispanic or Latino 26.6%
Two or More 15.3%
African American 6.7%
Asian 6.3%
Largest group: White at 45.1% of enrollment.
Student-body diversity index 69.4/100
Simpson diversity index - at 69.4, Odyssey Charter is more mixed than the California school average of 46.0.
Programs
Funding & spending
District-wide per-pupil expenditure for Odyssey Charter District, which includes Odyssey Charter.
$11,257
Per student
-32%
vs California
Avg $16,509
-32%
vs U.S.
Avg $16,593
Revenue mix
Local 26.0%
State 58.9%
Federal 15.1%
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 Altadena
6 comparable elementary schools (grades K-5) serving the same city.
Jackson Elementary
Standard public school
658 students 26.3:1 students per teacher
Altadena Elementary
Standard public school
527 students 31:1 students per teacher
Ocs - South
Standard public school
392 students 23.1:1 students per teacher
Aveson School of Leaders
Standard public school
279 students 17.4:1 students per teacher
Alma Fuerte Public
Standard public school
227 students 28.4:1 students per teacher
Pasadena Rosebud Academy
Standard public school
169 students 16.9:1 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 (~463 students)
Next steps
Verify locally before acting on Odyssey Charter's federal record.
- Compare Odyssey Charter against another school. Compare schools
- Odyssey Charter 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 Odyssey Charter
How many students attend Odyssey Charter?
Odyssey Charter has 463 students enrolled. It is an elementary school in Altadena, CA.
What is the student-teacher ratio at Odyssey Charter?
The student-teacher ratio at Odyssey Charter is 25.7:1, which is 20% higher than the California average of 21.5:1 and 64% higher than the national average of 15.7:1.
What percentage of students receive free lunch at Odyssey Charter?
21.3% of students at Odyssey Charter are eligible for free lunch, compared to the California average of 55.5%.
What is the racial and ethnic makeup of Odyssey Charter?
The largest demographic group at Odyssey Charter is White at 45.1% of enrollment, in Altadena, CA. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 69.4/100.
What is the Resource Investment Index for Odyssey Charter?
Odyssey Charter has a Resource Investment Index of 29/100 (lower reported resources relative to schools nationally) based on 3 factors: student-teacher ratio, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Odyssey Charter rank among elementary schools in Altadena?
By Resource Investment Index, Odyssey Charter ranks #4 of 7 elementary schools in Altadena, 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 Altadena on the city page.
Is Odyssey Charter a good school?
Odyssey Charter earns 29/100 on the Resource Investment Index, with class sizes larger than 84% of California schools. It is also more 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 Odyssey Charter District?
None; Odyssey Charter District is a single-school charter district, and Odyssey Charter 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.