Enrollment
540
California · 2024-25 NCES data
Elementary school (grades K-5) · Los Alamitos, CA
Federal NCES profile for Rossmoor Elementary, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 36/100.
The verdict
Rossmoor Elementary earns 36/100 on the Resource Investment Index, with class sizes larger than 76% of California schools. It is also more racially and ethnically mixed than most California schools.
Rossmoor Elementary has class sizes larger than 76% of California schools. Computed live against every California school reporting to NCES.
By Resource Investment Index, Rossmoor Elementary ranks #3 of 5 elementary schools in Los Alamitos, CA.
NCES ID 062259007307 Verify on NCES CCD record →
Enrollment
540
California · 2024-25 NCES data
Teachers (FTE)
22.0
Federal CCD staff survey
Students per teacher
24.5:1
vs 21.5:1 California avg
+14% vs state
Free-lunch eligible
15.8%
vs 55.5% California avg
-72% vs state
How Rossmoor Elementary compares with California and U.S. medians
Slightly above state median
24.5:1 - 3.0 above the California state median of 21.5:1, indicating larger average class loads than typical schools in the state.
Rossmoor Elementary is a lower-poverty, mid-sized elementary school in Los Alamitos, California, enrolling 540 students.
Class loads run somewhat heavier than typical: 24.5:1 puts it in the larger third of California schools by student-teacher ratio.
Comparatively few students face economic hardship here, 15.8% free-meal eligibility runs 72% below the California average.
With 540 students, its enrollment sits close to the California median campus size.
Its Resource Investment Index lands in the upper third of 9,998 scored California schools.
Against 1,187 statewide peers matched on enrollment and economic need, it ranks mid-pack at #558.
Its student body is led by White (39%) and Hispanic or Latino (30%), more mixed than most schools in the state (diversity index 72/100).
Counselor access is stretched at roughly 900 students per counselor, well above the ASCA-recommended 250:1 ceiling.
10.6% of students were chronically absent in the 2021-22 collection, in line with the post-pandemic national range.
Among Los Alamitos's elementary schools, it stands alongside Francis Hopkinson Elementary (642 students): Rossmoor Elementary is smaller than that campus by headcount and runs leaner classes (24.5:1 vs 26.8:1).
Los Alamitos Unified also operates Los Alamitos High (2,915 students) and Sharon Christa Mcauliffe Middle (1,018 students) alongside Rossmoor Elementary.
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
Rossmoor Elementary on the metrics families compare, against California and U.S. means.
| Metric | This school | vs California | California avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 24.5:1 | ▲ 14% | 21.5:1 | 15.7:1 |
| Free-lunch eligible | 15.8% | ▼ 72% | 55.5% | 51.7% |
| Enrollment | 540 | top 40% | - | - |
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: White at 38.7% of enrollment.
Simpson diversity index - at 71.6, Rossmoor Elementary is more mixed than the California school average of 46.0.
District-wide per-pupil expenditure for Los Alamitos Unified, which includes Rossmoor Elementary.
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 |
|---|---|---|---|
| Los Alamitos High | Larger | Similar economic need | Similar S:T ratio |
| Sharon Christa Mcauliffe Middle | Larger | Similar economic need | Similar S:T ratio |
| Oak Middle | Larger | Similar economic need | Higher S:T ratio |
| J. H. Mcgaugh Elementary | Larger | Similar economic need | Lower S:T ratio |
| Francis Hopkinson Elementary | Similar size | Similar economic need | Higher S:T ratio |
Comparisons are relative to Rossmoor Elementary's own figures; each column derives from NCES Common Core of Data.
4 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 Rossmoor Elementary'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.
Rossmoor Elementary has 540 students enrolled. It is an elementary school in Los Alamitos, CA.
The student-teacher ratio at Rossmoor Elementary is 24.5:1, which is 14% higher than the California average of 21.5:1 and 56% higher than the national average of 15.7:1.
15.8% of students at Rossmoor Elementary are eligible for free lunch, compared to the California average of 55.5%.
The largest demographic group at Rossmoor Elementary is White at 38.7% of enrollment, in Los Alamitos, CA. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 71.6/100.
Rossmoor Elementary has a Resource Investment Index of 36/100 (typical reported resources relative to schools nationally) based on 4 factors: student-teacher ratio, counselor availability, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
By Resource Investment Index, Rossmoor Elementary ranks #3 of 5 elementary schools in Los Alamitos, 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 Los Alamitos on the city page.
Rossmoor Elementary earns 36/100 on the Resource Investment Index, with class sizes larger than 76% 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.
Besides Rossmoor Elementary, Los Alamitos Unified also operates Los Alamitos High (2,915 students), Sharon Christa Mcauliffe Middle (1,018 students), and Oak Middle (998 students). See the Los Alamitos Unified 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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PlainSchools, “Rossmoor Elementary, Los Alamitos 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/rossmoor-elementary-ca
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