The bulletin board for America's public schools. Parents, teachers, students, and staff. One community per school.
SCHOOL COMMUNITY·RIALTO UNIFIED·NCES 063237011103

Wilmer Amina Carter High

2630 North Linden Ave., Rialto, CA 92377 · (909) 854-4100 · San Bernardino County
GRADES 09–12HIGH21-SUBURBTITLE IREGULAR SCHOOL1,951 STUDENTS
A
allk12 Grade
Scored higher than 85% of California public high schools
  • BTest scores Share of students meeting the state standard in reading, math, and other tested subjects, 2023-24 and 2024-25.
  • ABeats expectations How far test scores land above or below what the share of low-income students predicts for a school in this state.
  • A+Three-year trend Change in reading and math proficiency over the last three test years.

Grades compare a school only with schools in the same state, because every state gives its own test. How grades work · Top-graded California public high schools

Enrollment
1,951
High
DISTRICT 1,386 · STATE 838
Student : Teacher
22.1:1
88 FTE teachers
DISTRICT 19.1:1 · STATE 18.2:1
Free / Reduced Lunch
78%
1,528 students
DISTRICT 84% · STATE 65%
Community
6
0 members
Enrollment and student:teacher ratio compared against other high schools. Free/Reduced Lunch and demographics compared against all schools.

Enrollment by grade, 2024-25

GradeStudentsShare
Grade 947424%
Grade 1048125%
Grade 1150426%
Grade 1249225%
Student demographics
33%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 24% · STATE 62% · US 70%
White
714%
DISTRICT 2% · STATE 20% · US 43%
Hispanic
1,57181%
DISTRICT 87% · STATE 56% · US 30%
Black
23612%
DISTRICT 8% · STATE 5% · US 15%
Asian
332%
DISTRICT 1% · STATE 12% · US 6%
Two+
261%
DISTRICT 1% · STATE 6% · US 5%
Native American
70%
DISTRICT 0% · STATE 0% · US 1%
Pacific Islander
30%
DISTRICT 0% · STATE 0% · US 0%
Student head counts by race/ethnicity from federal NCES enrollment data. District, state, and US figures are each group's share of all public school students in that area (US excludes territories). Very small groups may be suppressed in the source, so categories do not always sum exactly to total enrollment.
Gender split
Male
1,00552%
Female
94248%

Discussions

+ POST

Test scores

CAASPP 2024-25 . % met or exceeded standard
English Language Arts
69.0%
CA avg 49.1% . +18.0pp since 2014
Math
26.8%
CA avg 37.7% . +11.8pp since 2014

What this means: On the CAASPP, California's statewide test, about 69 of every 100 students at this school read and write at grade level and about 27 of 100 do math at grade level. Across all California schools, those numbers are about 49 and 38. Reading and writing scores are up about 18 points since 2014, while math scores are up about 12 points.

Performance levels, 2024-25

SubjectStandard ExceededStandard MetStandard Nearly MetStandard Not Met
English Language Arts33.6%35.4%18.1%12.8%
Math11.6%15.1%24.3%48.9%
Share of tested students at each CAASPP level. Each student counts in one level, so a row adds to about 100%.

CAASPP results by year

School yearEnglish Language ArtsMath
2024-2569.0%26.8%
2023-2461.3%23.5%
2022-2346.7%19.5%
2021-2243.3%17.3%
2020-2161.7%31.5%
2018-1955.6%29.7%
2017-1856.0%28.2%
2016-1743.9%17.1%
2015-1661.0%27.0%
2014-1551.0%15.0%
% met or exceeded standard, all students and all tested grades.
Source: CAASPP. All students, all grades. See all years and grades →

BeatsExpectations

Demographically-adjusted score · methodology
Tier
AS EXPECTED
Performing as predicted given the school's student profile
Actual proficiency
45.1%
composite math + reading, all grades
Predicted
33.6%
based on CA schools with similar FRL share
Beats by
+11.5pp
above demographic expectation

What this means: About 45% of students here test proficient in math and reading, compared with the roughly 34% typical for California schools with a similar share of low-income students. BeatsExpectations measures results against demographically similar schools rather than by raw scores, and this school falls within the typical range, neither among California's top nor bottom 10%.

BeatsExpectations runs a per-state regression of proficiency on free/reduced-lunch share, then scores each school by residual. How this is calculated →

Schools most like Wilmer Amina Carter High

Wilmer Amina Carter High's state test result (45.1% proficient) is higher than 5 of the 5 schools below with a result.

SchoolStudentsLow-incomeProficient
Wilmer Amina Carter High this school1,95178.3%45.1%
Hawthorne High
Hawthorne
1,67580.0%33.0%
Jordan High
Long Beach
2,27274.0%21.9%
Valley View High
Moreno Valley
2,69981.5%33.8%
Bellflower High
Bellflower
1,99784.2%32.2%
Canyon Springs High
Moreno Valley
2,25183.3%31.8%
Matched among California high schools on enrollment, the share of students from low-income families (eligible for free or reduced-price lunch), and racial and ethnic makeup. Proficient is the average share of students meeting the state standard across all of the school's state tests in 2023-24 and 2024-25, the same combined score our test-score rankings use. Online schools and schools serving specialized populations are not matched.

Where Wilmer Amina Carter High ranks

Among high schools
MeasureThis schoolIn CaliforniaIn San Bernardino County
State test proficiency
ranked highest first
45.1%#403 of 1,052#17 of 54
Math proficiency
ranked highest first
26.8%#493 of 1,056
▲ 20
#23 of 56
▼ 2
Reading proficiency
ranked highest first
69.0%#269 of 1,056
▲ 144
#13 of 56
▲ 7
3-year test score change
ranked biggest gain first
+17.6pp#23 of 1,044#2 of 56
Enrollment
ranked largest first
1,951#314 of 2,093#33 of 102
Students per teacher
ranked fewest first
22.1:1#883 of 1,352#44 of 78
Diversity index
ranked most diverse first
33.2%#945 of 1,351#51 of 77
Free and reduced lunch
ranked highest share first
78.3%#659 of 1,575#43 of 84
Enrollment change since 2017-18
ranked steepest decline first
-18.2%#208 of 802#7 of 46
Ranked against other public high schools. Online schools are left out of every list, and test-score lists leave out schools that serve specialized populations. Each rank links to the full list. Arrows under a test-score rank show places moved since the prior test year, among schools tested both years.

4-year change

SY 2020-21 vs SY 2024-25
Enrollment
1,951
-403 (-17%) vs 2020
-22% since 2010-11, when it was 2,498
Student : Teacher
22.1:1
was 24.3:1
Source: NCES Common Core of Data

Enrollment and staffing by year

School yearStudentsTeachers (FTE)Students per teacherFree and reduced lunch
2024-251,95188.122.1:178% (1,528)
2023-242,02790.822.3:181% (1,643)
2022-232,21293.323.7:174% (1,646)
2020-212,3549724.3:182% (1,936)
2017-182,385105.322.6:173% (1,752)
2015-162,41110123.9:171% (1,701)
2010-112,498N/AN/A67% (1,677)
Source: NCES Common Core of Data. Rows are the federal collections on file for Wilmer Amina Carter High.

Since 2017-18: students down 18% (2,385 to 1,951); teachers down 16% (105.3 to 88.1).

About Wilmer Amina Carter High

Wilmer Amina Carter High is a large high school. Its address is in Rialto, California. Enrollment totals 1,951 students across grades 9 through 12. On average, high schools in California enroll around 838, and this school is 133% larger than that mark.

Wilmer Amina Carter High is a school in Rialto Unified. The district has 29 schools and 23,067 students.

By race and ethnicity, Wilmer Amina Carter High is 81% Hispanic. Next come 12% Black and 4% White. The county population is about 55% Hispanic. On a 0 to 100 scale, the school's diversity index is 33, compared with 70 nationally.

The student-to-teacher ratio at Wilmer Amina Carter High is 22.1:1, based on 88.1 full-time-equivalent teachers. The average for high schools in California is 18.2:1, so this school has more students per teacher. Wilmer Amina Carter High counts 78% of students as eligible for free or reduced-price lunch.

Wilmer Amina Carter High earns an A on the allk12 Grade, which blends test scores, results against poverty-based expectations, and the three-year trend. It scored higher than 85% of California public high schools.

After adjusting for student poverty, Wilmer Amina Carter High lands between the top and bottom 10% of California schools. Its average proficiency rate across its state test results is 45.1%; the prediction is 33.6%.

Census data for San Bernardino County show the median household earns about $85,478 a year, 23% of adults hold a bachelor's degree or higher, and about 11% of residents live below the federal poverty line. Public schools in San Bernardino County number 583, with about 393,648 students.

The closest school to Wilmer Amina Carter High is W.J.C. Trapp Elementary, located about 0.7 miles away. In all, at least 8 other public schools sit within five miles of Wilmer Amina Carter High. In a group of 8 nearby schools with scores, Wilmer Amina Carter High ranks 2nd on average proficiency.

The school's setting, by NCES definition, is Suburb: Large: in a suburban area outside a principal city, within an urbanized area with a population of 250,000 or more.

Enrollment fell by 17% across 4 years, from 2,354 in 2020-21 to 1,951 in 2024-25. Staffing shifted too: the ratio moved from 24.3:1 to 22.1:1.

The allk12 page for Wilmer Amina Carter High lets the school community talk about pickup and drop-off, after-school programs, and teacher feedback. Current and former families are welcome to add their experience.

San Bernardino County at a glance

View full county profile
Population
2,197,104
Census ACS
Median income
$85,478
Household, ACS
Bachelor's+
23%
Adults 25+
Poverty rate
11%
Below federal line
Schools in county
583
393,648 students

Quick facts

School name
Wilmer Amina Carter High
District
Rialto Unified
Address
2630 North Linden Ave., Rialto, CA 92377
Phone
(909) 854-4100
County
San Bernardino County
Level
High
Grade range
09–12
Total enrollment
1,951
Teachers (FTE)
88
Student–teacher ratio
22.1:1
Free and reduced lunch
1,528 (78%)
Locale
21-Suburb: Large
NCES ID
063237011103
Charter school
No
Virtual school
No

Related schools

Other schools in Rialto Unified
Other schools in Rialto
Nearby schools

Frequently asked questions

About Wilmer Amina Carter High
How many students attend Wilmer Amina Carter High?
Wilmer Amina Carter High enrolls approximately 1,951 students in grades 09-12.
Is Wilmer Amina Carter High an elementary, middle, or high school?
Wilmer Amina Carter High is a high school covering grades 09-12.
What is the student-teacher ratio at Wilmer Amina Carter High?
The student-to-teacher ratio at Wilmer Amina Carter High is approximately 22.1:1 (88 FTE teachers).
What is the racial breakdown of students at Wilmer Amina Carter High?
At Wilmer Amina Carter High, the student body is approximately 4% White, 81% Hispanic, 12% Black, 2% Asian, 1% Two or more.
Is Wilmer Amina Carter High public or private?
Wilmer Amina Carter High is a public K-12 school, overseen by Rialto Unified.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.
+ Post