Enrollment
598
California · 2024-25 NCES data
Elementary school (grades K-5) · Corona, CA
Federal NCES profile for William Mckinley Elementary, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 24/100.
The verdict
William Mckinley Elementary earns 24/100 on the Resource Investment Index, with class sizes larger than 70% of California schools.
William Mckinley Elementary has class sizes larger than 70% of California schools. Computed live against every California school reporting to NCES.
By Resource Investment Index, William Mckinley Elementary ranks #16 of 24 elementary schools in Corona, CA.
NCES ID 060985000932 Verify on NCES CCD record →
Enrollment
598
California · 2024-25 NCES data
Teachers (FTE)
25.0
Federal CCD staff survey
Students per teacher
23.9:1
vs 21.5:1 California avg
+11% vs state
Free-lunch eligible
56.5%
vs 55.5% California avg
+2% vs state
How William Mckinley Elementary compares with California and U.S. medians
Slightly above state median
23.9:1 - 2.4 above the California state median of 21.5:1, indicating larger average class loads than typical schools in the state.
William Mckinley Elementary is a higher-need, mid-sized elementary school in Corona, California, enrolling 598 students.
Class loads run somewhat heavier than typical: 23.9:1 puts it in the larger third of California schools by student-teacher ratio.
Its free-meal eligibility rate of 56.5% lands close to the California typical range, neither a high- nor low-need campus by this measure.
Enrollment of 598 puts it in the larger third of California schools by headcount.
Its Resource Investment Index lands in the lower third of 9,998 scored California schools.
Against 1,698 statewide peers matched on enrollment and economic need, it ranks mid-pack at #898.
Its student body is led by Hispanic or Latino (56%) and White (16%) (diversity index 64/100).
Counselor access is stretched at roughly 598 students per counselor, well above the ASCA-recommended 250:1 ceiling.
Chronic absenteeism is elevated: 30.8% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
Among Corona's elementary schools, it stands alongside Cesar Chavez Academy (1,024 students): William Mckinley Elementary is smaller than that campus by headcount and runs leaner classes (23.9:1 vs 26.9:1).
Corona-Norco Unified also operates Eleanor Roosevelt High (4,353 students) and Santiago High (3,577 students) alongside William Mckinley 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
William Mckinley 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 | 23.9:1 | ▲ 11% | 21.5:1 | 15.7:1 |
| Free-lunch eligible | 56.5% | ▲ 2% | 55.5% | 51.7% |
| Enrollment | 598 | top 33% | - | - |
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 55.7% of enrollment.
Simpson diversity index - at 63.9, William Mckinley Elementary is more mixed than the California school average of 46.0.
District-wide per-pupil expenditure for Corona-Norco Unified, which includes William Mckinley 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 |
|---|---|---|---|
| Eleanor Roosevelt High | Larger | Lower economic need | Similar S:T ratio |
| Santiago High | Larger | Lower economic need | Higher S:T ratio |
| Centennial High | Larger | Similar economic need | Lower S:T ratio |
| Corona High | Larger | Similar economic need | Similar S:T ratio |
| Norco High | Larger | Lower economic need | Similar S:T ratio |
Comparisons are relative to William Mckinley Elementary'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 William Mckinley 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.
William Mckinley Elementary has 598 students enrolled. It is an elementary school in Corona, CA.
The student-teacher ratio at William Mckinley Elementary is 23.9:1, which is 11% higher than the California average of 21.5:1 and 52% higher than the national average of 15.7:1.
56.5% of students at William Mckinley Elementary are eligible for free lunch, compared to the California average of 55.5%.
The largest demographic group at William Mckinley Elementary is Hispanic or Latino at 55.7% of enrollment, in Corona, CA. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 63.9/100.
William Mckinley Elementary has a Resource Investment Index of 24/100 (lower 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, William Mckinley Elementary ranks #16 of 24 elementary schools in Corona, 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 Corona on the city page.
William Mckinley Elementary earns 24/100 on the Resource Investment Index, with class sizes larger than 70% 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 William Mckinley Elementary, Corona-Norco Unified also operates Eleanor Roosevelt High (4,353 students), Santiago High (3,577 students), and Centennial High (2,712 students). See the Corona-Norco 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.
Published by
PlainSchools Editorial
Independent public-data reference that compiles, verifies, and contextualizes official datasets. We do not accept compensation from entities we cover, and every dataset cites its originating public source.
Last updated:
PlainSchools, “William Mckinley Elementary, Corona 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/william-mckinley-elementary-ca-3
You are welcome to quote these figures with attribution to PlainSchools and the underlying source. The URL above is stable.