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SCHOOL COMMUNITY·CUCAMONGA ELEMENTARY·NCES 061630009841

Ontario Center

835 North Center Ave., Ontario, CA 91764 · (909) 948-3044 · San Bernardino County
GRADES KG–05ELEMENTARY12-CITYTITLE IREGULAR SCHOOL585 STUDENTS
C-
allk12 Grade
Scored higher than 18% of California public elementary schools
  • C-Test scores Share of students meeting the state standard in reading, math, and other tested subjects, 2023-24 and 2024-25.
  • DBeats 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 elementary schools

Enrollment
585
Elementary
DISTRICT 529 · STATE 465
Student : Teacher
19.9:1
29 FTE teachers
DISTRICT 19.7:1 · STATE 22.3:1
Free / Reduced Lunch
75%
441 students
DISTRICT 76% · STATE 65%
Community
6
0 members
Enrollment and student:teacher ratio compared against other elementary schools. Free/Reduced Lunch and demographics compared against all schools.

Enrollment by grade, 2024-25

GradeStudentsShare
Kindergarten10518%
Grade 19416%
Grade 29416%
Grade 39015%
Grade 49616%
Grade 510618%

This year's kindergarten class (105) is about the same size as its 5th grade class (106).

Student demographics
65%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 52% · STATE 62% · US 70%
White
6211%
DISTRICT 7% · STATE 20% · US 43%
Hispanic
30452%
DISTRICT 67% · STATE 56% · US 30%
Black
13924%
DISTRICT 17% · STATE 5% · US 15%
Asian
366%
DISTRICT 5% · STATE 12% · US 6%
Two+
387%
DISTRICT 4% · STATE 6% · US 5%
Pacific Islander
61%
DISTRICT 1% · 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
31253%
Female
27347%

School pathway

Students here typically continue to
Ontario Center→Rancho Cucamonga Middle
Based on grade levels within Cucamonga Elementary. Attendance zones can vary; confirm enrollment with the district.

Discussions

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Test scores

CAASPP 2024-25 . % met or exceeded standard
English Language Arts
25.4%
CA avg 49.1% . -4.6pp since 2014
Math
27.7%
CA avg 37.7% . +9.7pp since 2014

What this means: On the CAASPP, California's statewide test, about 25 of every 100 students at this school read and write at grade level and about 28 of 100 do math at grade level. Across all California schools, those numbers are about 49 and 38. Reading and writing scores are down about 5 points since 2014, while math scores are up about 10 points.

Performance levels, 2024-25

SubjectStandard ExceededStandard MetStandard Nearly MetStandard Not Met
English Language Arts8.3%17.0%26.8%47.8%
Math5.4%22.3%28.8%43.5%
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
2024-2525.4%27.7%
2023-2422.8%20.1%
2022-2325.0%19.4%
2021-2222.3%18.1%
2018-1942.3%30.9%
2017-1842.7%30.8%
2016-1735.8%23.5%
2015-1636.0%18.0%
2014-1530.0%18.0%
% 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
24.1%
composite math + reading, all grades
Predicted
35.4%
based on CA schools with similar FRL share
Beats by
-11.3pp
below demographic expectation

What this means: About 24% of students here test proficient in math and reading, compared with the roughly 35% 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 Ontario Center

Ontario Center's state test result (24.1% proficient) is higher than 3 of the 4 schools below with a result.

SchoolStudentsLow-incomeProficient
Ontario Center this school58575.4%24.1%
Nancy Cory Elementary
Lancaster
72879.1%29.4%
Stoneman Elementary
Pittsburg
60281.2%20.1%
West Creek Elementary
Victorville
50571.7%13.5%
Marsh Elementary
Antioch
52281.4%6.9%
Capitol Collegiate Academy
Sacramento
51879.9%N/A
Matched among California elementary 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 Ontario Center ranks

Among elementary schools
MeasureThis schoolIn CaliforniaIn San Bernardino County
State test proficiency
ranked highest first
24.1%#4,178 of 5,151#223 of 318
Math proficiency
ranked highest first
27.7%#3,454 of 5,172
▲ 702
#160 of 321
▲ 57
Reading proficiency
ranked highest first
25.4%#4,453 of 5,172
▲ 47
#258 of 321
▼ 1
3-year test score change
ranked biggest gain first
+6.3pp#1,292 of 5,116#92 of 318
Enrollment
ranked largest first
585#1,529 of 5,915#122 of 340
Students per teacher
ranked fewest first
19.9:1#902 of 5,352#32 of 328
Diversity index
ranked most diverse first
65.4%#1,202 of 5,354#38 of 328
Free and reduced lunch
ranked highest share first
75.4%#2,589 of 5,625#207 of 331
Enrollment change since 2017-18
ranked steepest decline first
-7.6%#2,985 of 3,837#187 of 246
Ranked against other public elementary 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
585
+44 (+8%) vs 2020
+5% since 1990-91, when it was 557
Student : Teacher
19.9:1
was 21.6:1
Source: NCES Common Core of Data

Enrollment and staffing by year

School yearStudentsTeachers (FTE)Students per teacherFree and reduced lunch
2024-2558529.319.9:175% (441)
2023-2456326.321.4:171% (402)
2022-2354825.721.4:163% (343)
2020-215412521.6:159% (320)
2017-186332921.8:167% (421)
2015-167112924.5:169% (492)
2010-11725N/AN/A62% (448)
2000-016283219.6:157% (355)
1990-915572126.5:1N/A
Source: NCES Common Core of Data. Rows are the federal collections on file for Ontario Center.

Since 2017-18: students down 8% (633 to 585); teachers up 1% (29 to 29.3).

About Ontario Center

A medium-sized elementary school in Ontario, California, Ontario Center is part of Cucamonga Elementary. The school's enrollment of 585 students covers kindergarten through 5. Enrollment is 26% higher than the average for elementary schools in California, which is about 465.

Cucamonga Elementary has 2,357 students in 4 schools, and Ontario Center is one of those schools.

By race and ethnicity, Ontario Center is 52% Hispanic. The school is also 24% Black, 11% White, 7% multiracial, and 6% Asian. For comparison, San Bernardino County is about 55% Hispanic. By the diversity index, Ontario Center comes in at 65%.

Teachers at Ontario Center total 29.3 full-time equivalents, and the ratio is 19.9:1. For comparison, elementary schools in California average 22.3:1. Federal records put free or reduced-price lunch eligibility at 75%. That is close to the 74% average for public schools in San Bernardino County.

The allk12 Grade for Ontario Center is C-. Compared with California public elementary schools, the school scored higher than 18% on a mix of test scores, poverty-adjusted results, and recent trend.

On a poverty-adjusted basis, Ontario Center falls in the middle 80% of California schools: 24.1% actual against 35.4% predicted.

In San Bernardino County (population about 2,197,104), median household income is about $85,478, 23% of adults hold a bachelor's degree or higher, and about 11% of residents live below the federal poverty line. A total of 583 public schools operate in San Bernardino County, serving about 393,648 students.

The next-closest public school is Inland Empire Springs Charter, about 1.4 miles away. In all, at least 8 other public schools sit within five miles of Ontario Center. In a group of 5 nearby schools with scores, Ontario Center ranks 4th on average proficiency.

Its location is classified as City: Mid-size by the National Center for Education Statistics.

The student count in 2024-25 was 585, 8% above the 541 of 2020-21. By 2024-25, the school had 19.9 students per teacher, compared with 21.6 in 2020-21.

The Ontario Center community page is open for posts about enrollment questions, class placement, and PTA news. Anyone with firsthand experience at this school can post or comment.

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
Ontario Center
District
Cucamonga Elementary
Address
835 North Center Ave., Ontario, CA 91764
Phone
(909) 948-3044
County
San Bernardino County
Level
Elementary
Grade range
KG–05
Total enrollment
585
Teachers (FTE)
29
Student–teacher ratio
19.9:1
Free and reduced lunch
441 (75%)
Locale
12-City: Mid-size
NCES ID
061630009841
Charter school
No
Virtual school
No

Related schools

Other schools in Cucamonga Elementary
Other schools in Ontario
Nearby schools

Frequently asked questions

About Ontario Center
How many students attend Ontario Center?
Ontario Center enrolls approximately 585 students in grades KG-05.
What age range does Ontario Center serve?
Ontario Center serves students from grade KG through grade 05.
How many teachers does Ontario Center have?
Ontario Center employs 29 FTE teachers, for a student-to-teacher ratio of 19.9:1.
What is the racial breakdown of students at Ontario Center?
At Ontario Center, the student body is approximately 11% White, 52% Hispanic, 24% Black, 6% Asian, 7% Two or more.
Is Ontario Center public or private?
Ontario Center is a public K-12 school, overseen by Cucamonga Elementary.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.
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