Serving 442 students in grades Kindergarten-6, Sumner Elementary School ranks in the top 50% of all schools in California for overall test scores (math proficiency is top 50%, and reading proficiency is top 50%).
The percentage of students achieving proficiency in math is 36% (which is higher than the California state average of 33%). The percentage of students achieving proficiency in reading/language arts is 39% (which is lower than the California state average of 47%).
The student:teacher ratio of 22:1 is higher than the California state level of 21:1.
Minority enrollment is 75% of the student body (majority Hispanic), which is lower than the California state average of 80% (majority Hispanic).
Quick Stats (2025)
- Grades: Kindergarten-6
- Enrollment: 442 students
- Student:Teacher Ratio: 22:1
- Minority Enrollment: 75%
- Overall Testing Rank: Top 50% in CA
- Math Proficiency: 36% (Top 50%)
- Reading Proficiency: 39% (Btm 50%)
- Science Proficiency: 35-39% (Top 30%)
- Source: National Center for Education Statistics (NCES), CA Dept. of Education
School Overview
Sumner Elementary School's student population of 442 students has declined by 8% over five school years.
The teacher population of 20 teachers has stayed relatively flat over five school years.
Grades Offered
Grades Kindergarten-6
Total Students
442 students
Gender %
Total Classroom Teachers
20 teachers
Students by Grade
School Rankings
Sumner Elementary School ranks within the top 50% of all 9,602 schools in California (based off of combined math and reading proficiency testing data).
The diversity score of Sumner Elementary School is 0.61, which is less than the diversity score at state average of 0.63. The school's diversity has stayed relatively flat over five school years.
Overall Testing Rank
#4395 out of 9602 schools
(Top 50%)
(Top 50%)
Math Test Scores (% Proficient)
36%
33%
Reading/Language Arts Test Scores (% Proficient)
39%
47%
Science Test Scores (% Proficient)
35-39%
29%
Student : Teacher Ratio
22:1
21:1
American Indian
n/a
1%
Asian
8%
12%
Hispanic
57%
56%
Black
5%
5%
White
25%
20%
Hawaiian
n/a
n/a
Two or more races
5%
6%
All Ethnic Groups
Eligible for Free Lunch
39%
54%
Eligible for Reduced Lunch
5%
8%
School Statewide Testing
School District Name
Source: National Center for Education Statistics (NCES), CA Dept. of Education
Frequently Asked Questions
What is Sumner Elementary School's ranking?
Sumner Elementary School is ranked #4395 out of 9,602 schools, which ranks it among the top 50% of public schools in California.
What schools are Sumner Elementary School often compared to?
Sumner Elementary Schoolis often viewed alongside schools like Mountain View Elementary School, Condit Elementary School by visitors of our site.
What percent of students have achieved state testing proficiency in math and reading?
36% of students have achieved math proficiency (compared to the 33% CA state average), while 39% of students have achieved reading proficiency (compared to the 47% CA state average).
How many students attend Sumner Elementary School?
442 students attend Sumner Elementary School.
What is the racial composition of the student body?
57% of Sumner Elementary School students are Hispanic, 25% of students are White, 8% of students are Asian, 5% of students are Black, and 5% of students are Two or more races.
What is the student:teacher ratio of Sumner Elementary School?
Sumner Elementary School has a student ration of 22:1, which is higher than the California state average of 21:1.
What grades does Sumner Elementary School offer ?
Sumner Elementary School offers enrollment in grades Kindergarten-6
What school district is Sumner Elementary School part of?
Sumner Elementary School is part of Claremont Unified School District.
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