Enrollment
125
California · 2024-25 NCES data
Elementary school (grades K-5) · Ontario, CA
Federal NCES profile for Online Academy, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 62/100.
The verdict
Online Academy earns 62/100 on the Resource Investment Index, with class sizes smaller than 96% of California schools.
Online Academy has class sizes smaller than 96% of California schools. Computed live against every California school reporting to NCES.
By Resource Investment Index, Online Academy ranks #1 of 26 elementary schools in Ontario, CA.
NCES ID 062847014641 Verify on NCES CCD record →
Enrollment
125
California · 2024-25 NCES data
Teachers (FTE)
13.0
Federal CCD staff survey
Students per teacher
9.6:1
vs 21.5:1 California avg
-55% vs state
Free-lunch eligible
71.2%
vs 55.5% California avg
+28% vs state
How Online Academy compares with California and U.S. medians
Smaller classes than state median
9.6:1 - 11.9 below the California state median of 21.5:1, indicating smaller average class loads than typical schools in the state.
Online Academy is a higher-need, small elementary school in Ontario, California, enrolling 125 students.
Classes run notably small here: at 9.6:1, Online Academy is leaner than roughly 96% of California schools and 55% under the state's 21.5:1 norm, more adult attention per pupil than most peers.
Economic need runs somewhat above the state's typical profile, with 71.2% of students eligible for free meals.
Enrollment of 125 puts it in the smaller third of California schools by headcount.
Its Resource Investment Index outscores 98% of the 9,998 California schools with a score on record, a top-tier result on this measure.
Among 324 similarly sized, similarly resourced-need California schools statewide, it ranks #30, a top-tier result once campus size and economic need are matched.
Its student body is predominantly Hispanic or Latino (80% of enrollment) (diversity index 35/100).
Among Ontario's elementary schools, it stands alongside Park View Elementary (844 students): Online Academy is smaller than that campus by headcount and runs leaner classes (9.6:1 vs 25.6:1).
Ontario-Montclair also operates Edison Elementary (736 students) and Central Language Academy (736 students) alongside Online Academy.
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
Online 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 | 9.6:1 | ▼ 55% | 21.5:1 | 15.7:1 |
| Free-lunch eligible | 71.2% | ▲ 28% | 55.5% | 51.7% |
| Enrollment | 125 | top 88% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
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.
Largest group: Hispanic or Latino at 80.0% of enrollment.
Simpson diversity index - at 34.8, Online Academy is less mixed than the California school average of 46.0.
District-wide per-pupil expenditure for Ontario-Montclair, which includes Online Academy.
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.
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Edison Elementary | Larger | Lower economic need | Higher S:T ratio |
| Central Language Academy | Larger | Lower economic need | Higher S:T ratio |
| Ray Wiltsey Middle | Larger | Higher economic need | Higher S:T ratio |
| Oaks Middle | Larger | Similar economic need | Higher S:T ratio |
| Serrano Middle | Larger | Similar economic need | Higher S:T ratio |
Comparisons are relative to Online Academy's own figures; each column derives from NCES Common Core of Data.
6 comparable elementary schools (grades K-5) serving the same city.
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.
Next steps
Verify locally before acting on Online Academy's federal record.
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.
Online Academy has 125 students enrolled. It is an elementary school in Ontario, CA.
The student-teacher ratio at Online Academy is 9.6:1, which is 55% lower than the California average of 21.5:1 and 39% lower than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
71.2% of students at Online Academy are eligible for free lunch, compared to the California average of 55.5%.
The largest demographic group at Online Academy is Hispanic or Latino at 80.0% of enrollment, in Ontario, CA.
Online Academy has a Resource Investment Index of 62/100 (higher reported resources relative to schools nationally) based on 1 factor: 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.
By Resource Investment Index, Online Academy ranks #1 of 26 elementary schools in Ontario, 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 Ontario on the city page.
Online Academy earns 62/100 on the Resource Investment Index, with class sizes smaller than 96% of 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.
Besides Online Academy, Ontario-Montclair also operates Edison Elementary (736 students), Central Language Academy (736 students), and Ray Wiltsey Middle (727 students). See the Ontario-Montclair district page for the complete list.
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.
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Last updated:
PlainSchools, “Online Academy, Ontario CA.” Compiled from NCES Common Core of Data, Civil Rights Data Collection, and the NCES F-33 finance survey; data as of June 2026. https://plainschools.com/schools/online-academy-ca
You are welcome to quote these figures with attribution to PlainSchools and the underlying source. The URL above is stable.