Enrollment
1,951
California · 2024-25 NCES data
High school (grades 9-12) · Rialto, CA
Wilmer Amina Carter High
Federal NCES profile for Wilmer Amina Carter High, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 41/100.
2024-25 NCES dataHigh school (grades 9-12)NCES 063237011103
👥 S:T ratio 16
📚 AP courses 75
🌟 Gifted program 70
🎓 Counselors 44
📋 Attendance 0
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Wilmer Amina Carter High earns 41/100 on the Resource Investment Index, with class sizes near the California median. It is also one of the largest schools in California.
- #3 of 4
- high schools in Rialto · Resource Index
- 41
- Resource Index · Typical
- 21:1
- students per teacher
- 62.6%
- free-lunch eligible
Wilmer Amina Carter High has class sizes near the California median. Computed live against every California school reporting to NCES.
By Resource Investment Index, Wilmer Amina Carter High ranks #3 of 4 high schools in Rialto, CA.
School address
District: Rialto Unified · California
NCES ID 063237011103 Verify on NCES CCD record →
Teachers (FTE)
93.0
Federal CCD staff survey
Students per teacher
21:1
vs 21.5:1 California avg
-2% vs state
Free-lunch eligible
62.6%
vs 55.5% California avg
+13% vs state
Student-teacher ratio in context
How Wilmer Amina Carter High compares with California and U.S. medians
What stands out at Wilmer Amina Carter High
Wilmer Amina Carter High is a higher-need, large high school in Rialto, California, enrolling 1,951 students.
At 21:1, its student-teacher ratio sits close to the California median, within a few percentage points of the 21.5:1 state norm, neither notably crowded nor notably small.
Its free-meal eligibility rate of 62.6% lands close to the California typical range, neither a high- nor low-need campus by this measure.
By headcount it is one of the larger campuses in California, bigger than 97% of state schools at 1,951 students.
Its Resource Investment Index sits near the middle of the pack among 9,998 scored California schools.
Against 322 statewide peers matched on enrollment and economic need, it ranks in the upper tier at #126.
Its student body is predominantly Hispanic or Latino (81% of enrollment) (diversity index 33/100).
On the academic-pipeline side it reports 15 Advanced Placement courses.
Counselor coverage runs a bit thin, about 279 students per counselor, somewhat past the ASCA-recommended 250:1 benchmark.
Chronic absenteeism is elevated: 40.7% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
The federal civil-rights collection also records 5 expulsions at this campus for 2021-22.
Among Rialto's high schools, it stands alongside Rialto High (2,623 students): Wilmer Amina Carter High is smaller than that campus by headcount and runs leaner classes (21:1 vs 22.2:1).
Rialto Unified also operates Rialto High (2,623 students) and Eisenhower High (2,075 students) alongside Wilmer Amina Carter High.
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 Wilmer Amina Carter High compares
Wilmer Amina Carter High on the metrics families compare, against California and U.S. means.
| Metric | This school | vs California | California avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 21:1 | ▼ 2% | 21.5:1 | 15.7:1 |
| Free-lunch eligible | 62.6% | ▲ 13% | 55.5% | 51.7% |
| Enrollment | 1,951 | top 3% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
21:1
Leaner classes than 13% of US schools, heavier class loads than most.
1,951
Bigger than 98% of US schools by enrollment, a large campus nationally.
Equity indicators (what these measure)
Economic need
62.6%
free-lunch eligible
- 13% above the California average of 55.5%
Above the 40% Title I schoolwide threshold; federal funds support the whole school, not individual students.
Staffing depth
21:1
students per teacher
- 2% below state mean
Top 43% in California - lower ratio than 57% of state schools
Above 20:1, running heavier than the typical U.S. public school; staffing is comparatively stretched.
Engagement
40.7%
chronically absent (missed 10%+ of school days)
At or above 20%, the commonly used threshold for "high" chronic absenteeism, signaling significant barriers to regular attendance.
Funding equity
$15,995
per pupil, district-wide
- below California avg of $16,509
Close to the U.S. public-school average per-pupil spend.
Support staff
Counselors7.0 FTE
Per 279 students, the combined health-and-guidance staffing load for this school.
Discipline context
2
in-school suspensions + 152 out-of-school
Suspension rate: 0.1 per 100 students. Combined in-school and out-of-school rate: 7.9 per 100 students. Reported via the Civil Rights Data Collection. Includes 5 expulsions.
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
Hispanic or Latino 80.7%
African American 12.1%
White 3.6%
Asian 1.7%
Two or More 1.3%
American Indian / Alaska Native 0.4%
Native Hawaiian / Pacific Islander 0.2%
Largest group: Hispanic or Latino at 80.7% of enrollment.
Student-body diversity index 33.2/100
Simpson diversity index - at 33.2, Wilmer Amina Carter High is less mixed than the California school average of 46.0.
Programs
AP courses offered 15
Gifted & talented Yes
Funding & spending
District-wide per-pupil expenditure for Rialto Unified, which includes Wilmer Amina Carter High.
$15,995
Per student
-3%
vs California
Avg $16,509
-4%
vs U.S.
Avg $16,593
Revenue mix
Local 16.4%
State 72.8%
Federal 10.9%
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.
How Wilmer Amina Carter High Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Rialto High | Larger | Similar economic need | Similar S:T ratio |
| Eisenhower High | Similar size | Higher economic need | Similar S:T ratio |
| William G. Jehue Middle | Smaller | Similar economic need | Higher S:T ratio |
| Rialto Middle | Smaller | Similar economic need | Higher S:T ratio |
| Warren F. Frisbie Middle | Smaller | Higher economic need | Higher S:T ratio |
Comparisons are relative to Wilmer Amina Carter High's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 2,623
- Students per teacher
- 22.2:1
- Resource Index
- 39/100
- Enrollment
- 2,075
- Students per teacher
- 20.8:1
- Resource Index
- 32/100
- Enrollment
- 1,444
- Students per teacher
- 25.8:1
- Resource Index
- 23/100
- Enrollment
- 1,017
- Students per teacher
- 23.1:1
- Resource Index
- 27/100
- Enrollment
- 1,000
- Students per teacher
- 25:1
- Resource Index
- 29/100
Similar high schools in Rialto
3 comparable high schools (grades 9-12) serving the same city.
Similar high 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 (~1,951 students)
Similar student-teacher ratio (~21:1)
Next steps
Verify locally before acting on Wilmer Amina Carter High's federal record.
- Compare Wilmer Amina Carter High against another school. Compare schools
- Rialto Unified'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 Wilmer Amina Carter High
How many students attend Wilmer Amina Carter High?
Wilmer Amina Carter High has 1,951 students enrolled. It is a high school in Rialto, CA.
What is the student-teacher ratio at Wilmer Amina Carter High?
The student-teacher ratio at Wilmer Amina Carter High is 21:1, which is 2% lower than the California average of 21.5:1 and 34% higher than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
What percentage of students receive free lunch at Wilmer Amina Carter High?
62.6% of students at Wilmer Amina Carter High are eligible for free lunch, compared to the California average of 55.5%.
What is the racial and ethnic makeup of Wilmer Amina Carter High?
The largest demographic group at Wilmer Amina Carter High is Hispanic or Latino at 80.7% of enrollment, in Rialto, CA.
What is the Resource Investment Index for Wilmer Amina Carter High?
Wilmer Amina Carter High has a Resource Investment Index of 41/100 (typical reported resources relative to schools nationally) based on 5 factors: student-teacher ratio, AP course offerings, counselor availability, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Wilmer Amina Carter High rank among high schools in Rialto?
By Resource Investment Index, Wilmer Amina Carter High ranks #3 of 4 high schools in Rialto, CA. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all high schools in Rialto on the city page.
Is Wilmer Amina Carter High a good school?
Wilmer Amina Carter High earns 41/100 on the Resource Investment Index, with class sizes near the California median. It is also one of the largest schools in California. 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 Rialto Unified?
Besides Wilmer Amina Carter High, Rialto Unified also operates Rialto High (2,623 students), Eisenhower High (2,075 students), and William G. Jehue Middle (1,444 students). See the Rialto Unified district page for the complete list.
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.