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SCHOOL COMMUNITY·CLAREMONT UNIFIED·NCES 060876000894

Sumner Elementary

1770 Sumner Ave., Claremont, CA 91711 · (909) 398-0320 · Los Angeles County
GRADES KG–06ELEMENTARY21-SUBURBTITLE IREGULAR SCHOOL444 STUDENTS
Enrollment
444
Elementary
DISTRICT 379 · STATE 465
Student : Teacher
23.4:1
19 FTE teachers
DISTRICT 22.7:1 · STATE 22.3:1
Free / Reduced Lunch
46%
203 students
DISTRICT 41% · 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
Kindergarten7216%
Grade 14811%
Grade 25512%
Grade 35312%
Grade 45713%
Grade 56916%
Grade 69020%

This year's kindergarten class (72) is 20% smaller than its 6th grade class (90).

Student demographics
62%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 68% · STATE 62% · US 70%
White
11025%
DISTRICT 26% · STATE 20% · US 43%
Hispanic
24655%
DISTRICT 47% · STATE 56% · US 30%
Black
256%
DISTRICT 4% · STATE 5% · US 15%
Asian
368%
DISTRICT 13% · STATE 12% · US 6%
Two+
235%
DISTRICT 9% · STATE 6% · US 5%
Native American
20%
DISTRICT 0% · STATE 0% · US 1%
Pacific Islander
20%
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
24655%
Female
19845%

School pathway

Students here typically continue to
Sumner Elementary→El Roble Intermediate→Claremont High
Based on grade levels within Claremont Unified. 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
49.6%
CA avg 49.1% . -3.4pp since 2014
Math
44.9%
CA avg 37.7% . +8.9pp since 2014

What this means: On the CAASPP, California's statewide test, about 50 of every 100 students at this school read and write at grade level and about 45 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 3 points since 2014, while math scores are up about 9 points.

Performance levels, 2024-25

SubjectStandard ExceededStandard MetStandard Nearly MetStandard Not Met
English Language Arts21.7%27.9%25.8%24.6%
Math19.6%25.3%29.4%25.7%
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
2024-2549.6%44.9%
2023-2444.3%43.9%
2022-2344.1%44.0%
2021-2239.4%37.2%
2018-1949.2%43.3%
2017-1852.1%38.6%
2016-1749.8%38.6%
2015-1650.0%36.0%
2014-1553.0%36.0%
% 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
45.4%
composite math + reading, all grades
Predicted
52.8%
based on CA schools with similar FRL share
Beats by
-7.4pp
below demographic expectation

What this means: About 45% of students here test proficient in math and reading, compared with the roughly 53% 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 Sumner Elementary

Sumner Elementary's state test result (45.4% proficient) is higher than 2 of the 4 schools below with a result.

SchoolStudentsLow-incomeProficient
Sumner Elementary this school44445.7%45.4%
Vintage Parkway Elementary
Oakley
48144.3%39.4%
High Tech Elementary
San Diego
44448.6%N/A
Mountain View Elementary
Claremont
40844.1%44.6%
Carnelian Elementary
Alta Loma
44142.2%57.9%
Judson & Brown Elementary
Redlands
48450.6%50.6%
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 Sumner Elementary ranks

Among elementary schools
MeasureThis schoolIn CaliforniaIn Los Angeles County
State test proficiency
ranked highest first
45.4%#2,038 of 5,151#477 of 1,126
Math proficiency
ranked highest first
44.9%#1,934 of 5,172
▼ 30
#474 of 1,129
▼ 36
Reading proficiency
ranked highest first
49.6%#2,069 of 5,172
▲ 253
#472 of 1,129
▲ 58
3-year test score change
ranked biggest gain first
+9.0pp#752 of 5,116#267 of 1,116
Enrollment
ranked largest first
444#3,103 of 5,915#645 of 1,300
Students per teacher
ranked fewest first
23.4:1#3,263 of 5,352#780 of 1,213
Diversity index
ranked most diverse first
61.9%#1,631 of 5,354#246 of 1,214
Free and reduced lunch
ranked highest share first
45.7%#4,099 of 5,625#1,028 of 1,276
Enrollment change since 2017-18
ranked steepest decline first
-13.5%#2,214 of 3,837#649 of 947
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
444
+4 (+1%) vs 2020
-20% since 1990-91, when it was 555
Student : Teacher
23.4:1
was 24.4:1
Source: NCES Common Core of Data

Enrollment and staffing by year

School yearStudentsTeachers (FTE)Students per teacherFree and reduced lunch
2024-254441923.4:146% (203)
2023-244422022.1:144% (193)
2022-234281922.5:141% (175)
2020-214401824.4:140% (175)
2017-185132124.4:150% (259)
2015-165242026.2:149% (257)
2010-11612N/AN/A43% (263)
2000-015272422.0:140% (212)
1990-915552027.8:1N/A
Source: NCES Common Core of Data. Rows are the federal collections on file for Sumner Elementary.

Since 2017-18: students down 13% (513 to 444); teachers down 10% (21 to 19).

About Sumner Elementary

Sumner Elementary is a mid-sized elementary school in Claremont, California. Federal data show 444 students enrolled in kindergarten through 6 in 2024-25.

Claremont Unified, which runs Sumner Elementary, has 11 schools and 6,120 students.

More than half of the students at Sumner Elementary are Hispanic (55%). Next come 25% White, 8% Asian, 6% Black, and 5% multiracial. The diversity index for Sumner Elementary is 62%. For US public schools as a whole it is 70%.

The student-to-teacher ratio at Sumner Elementary is 23.4:1, based on 19 full-time-equivalent teachers. Compared with the 22.3:1 average for elementary schools in California, this school's ratio is higher. Lunch program data show 46% of students are eligible for free or reduced-price meals. It compares with 70% for public schools in Los Angeles County.

Based on its free or reduced-price lunch share, the BeatsExpectations model predicts an average proficiency rate across its state test results of 52.8% for Sumner Elementary. The school posts 45.4%, 7.4 points below the prediction.

The school's county is Los Angeles County. According to Census Bureau estimates, median household income comes to about $90,112, the share of adults with a bachelor's degree or higher is 36%, and roughly 10% of residents are in poverty. There are 2,244 public schools in the county, enrolling about 1,265,907, Sumner Elementary among them.

Danbury Special Education, less than a tenth of a mile away, is the closest public school. Counting only straight-line distance, at least 8 other public schools are within five miles. Of the 8 nearby schools with scores, including this one, Sumner Elementary is 6th on average proficiency.

In the federal locale system, Sumner Elementary is coded Suburb: Large, for schools in a suburban area outside a principal city, within an urbanized area with a population of 250,000 or more.

Enrollment in 2024-25 was 444, close to the 440 recorded in 2020-21. Staffing shifted too: the ratio moved from 24.4:1 to 23.4:1.

People can post here about homework, tutoring, and testing dates and other school topics. Members of the school community can share what they know.

Los Angeles County at a glance

View full county profile
Population
9,808,667
Census ACS
Median income
$90,112
Household, ACS
Bachelor's+
36%
Adults 25+
Poverty rate
10%
Below federal line
Schools in county
2,244
1,265,907 students

Quick facts

School name
Sumner Elementary
District
Claremont Unified
Address
1770 Sumner Ave., Claremont, CA 91711
Phone
(909) 398-0320
County
Los Angeles County
Level
Elementary
Grade range
KG–06
Total enrollment
444
Teachers (FTE)
19
Student–teacher ratio
23.4:1
Free and reduced lunch
203 (46%)
Locale
21-Suburb: Large
NCES ID
060876000894
Charter school
No
Virtual school
No

Related schools

Other schools in Claremont Unified
Other schools in Claremont
Other Sumner Elementary schools

3 other US public schools in 4 states are named Sumner Elementary. Sumner Elementary is the 3rd largest of the 4.

Nearby schools

Frequently asked questions

About Sumner Elementary
How large is Sumner Elementary?
Sumner Elementary enrolls approximately 444 students in grades KG-06.
Is Sumner Elementary an elementary, middle, or high school?
Sumner Elementary is an elementary school covering grades KG-06.
What is the student-teacher ratio at Sumner Elementary?
The student-to-teacher ratio at Sumner Elementary is approximately 23.4:1 (19 FTE teachers).
What is the racial breakdown of students at Sumner Elementary?
At Sumner Elementary, the student body is approximately 25% White, 55% Hispanic, 6% Black, 8% Asian, 5% Two or more.
Who oversees Sumner Elementary?
Sumner Elementary is overseen by Claremont Unified in Los Angeles County.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.
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