Average
#3701 of 9,533 schools in CA
Top 39% in state
Sumner Elementary
Elementary School · Claremont Unified
1770 Sumner Ave., Claremont, CA 91711
Enrollment
442
Student-Teacher
22.1:1
Score
6.8
Grades
Kindergarten – 6th
Enrollment
442
Student-Teacher
22.1:1
Score
6.8
Grades
Kindergarten – 6th
Updated
2022-23
Updated 2022-23
How this school compares
In Claremont
#5 of 11
public schools
California elementary schools
#2,386 of 5,817
In district
#5 of 11
Claremont Unified
Academic growth
7.3 / 10
Strong
About Sumner Elementary
Sumner Elementary is a regular public school located in Claremont, California, nestled within a large suburban area. Serving students from kindergarten through sixth grade, the school has an enrollment of 442 students and maintains a student-teacher ratio of 22.1:1 with 20 full-time equivalent teachers on staff. Sumner Elementary's academic performance reflects its commitment to fostering a supportive learning environment for all students.
With MySchoolScout ranking it at 6.4 out of 10, the school is in the 66th percentile among California schools, showing that there is room for growth and improvement in student outcomes. In terms of proficiency rates, 45% of students are proficient or above in English Language Arts/Reading, while 44% meet or exceed standards in Math. Sumner Elementary provides a solid foundation for young learners within its suburban setting, offering resources and support to help each child succeed.
The school is part of the larger Claremont community, where families can engage with local parks, cultural institutions, and nearby colleges.
What Parents Should Know
The student-teacher ratio at Sumner Elementary is 22.1:1, which is higher than the national average. This may mean larger class sizes, so parents should ask about classroom support, teaching assistants, and how the school differentiates instruction for students who need extra help.
Score Breakdown
Full Profile · 3/3 metricsView breakdown
View breakdown
Data not available for this school
View breakdown
Sumner Elementary — Students at Sumner Elementary score 44% proficient, which is below what's typical for similar communities (expected: 50%).
Equity & Diversity
Shown separately, not included in overall scoreFree/Reduced Lunch
43.7%
Students qualifying for federal meal assistance
Test Scores CA CAASPP (2023-24)
Based on 12 test records from CA state assessments. About our data
Proficiency Trend
→ StableAverage proficiency (% at or above grade level) across Math & ELA over time.
Source: EdFacts (NCES) and state assessment data. Growth score: 7.3/10.
How Sumner Elementary Compares
See how Sumner Elementary performs across key quality dimensions compared to state benchmarks.
Funding & Resources
Performance Trends
Math proficiency has remained stable from 43% (2019) to 43.88% (2024). Reading/ELA proficiency has declined from 49% (2019) to 44.3% (2024).
Location
1770 Sumner Ave., Claremont, CA 91711
Nearby Alternatives
Families considering Sumner Elementary may also want to explore other elementary schools in the area. FOOTHILL COUNTRY DAY SCHOOL (rated 6.9/10, 1.2 miles away), with a very similar rating. Another option is Condit Elementary (rated 6.6/10, 0.8 miles away), with a very similar rating. Additionally, Danbury Special Education (rated 4.7/10, 0.1 miles away), a more accessible option. For more schools in Claremont, see our Claremont schools guide .
Nearby Schools
20 within 1.7 mi| School | Distance | Rating |
|---|---|---|
| Danbury Special Education Claremont | 0.1 mi | 4.7 |
| The Webb Schools Claremont | 0.5 mi | — |
| THE WEBB SCHOOLS Claremont | 0.5 mi | 8.6 |
| ICC Community School Pomona | 0.7 mi | — |
| LEROY HAYNES EDUCATIONAL CENTER La Verne | 0.7 mi | 6.6 |
| HAYNES EDUCATION CENTER La Verne | 0.7 mi | 6.3 |
| Haynes Family of Programs dba Bliss Academy La Verne | 0.7 mi | — |
| City of Knowledge Pomona | 0.8 mi | — |
| CITY OF KNOWLEDGE SCHOOL Pomona | 0.8 mi | 7.7 |
| Academy of Sports Science Claremont | 0.8 mi | — |
| Condit Elementary Claremont | 0.8 mi | 6.6 |
| Mountain View Elementary Claremont | 1.0 mi | 4.7 |
| Harrison Elementary Pomona | 1.2 mi | 4.4 |
| FOOTHILL COUNTRY DAY SCHOOL Claremont | 1.2 mi | 6.9 |
| Foothill Country Day School Claremont | 1.2 mi | — |
| LUTHERAN HIGH SCHOOL La Verne | 1.1 mi | 8.2 |
| El Roble Intermediate Claremont | 1.3 mi | 7.3 |
| Claremont High Claremont | 1.2 mi | 7.5 |
| Bonita High San Dimas | 1.5 mi | 7.7 |
| American Christian Military Academy Of Excellence Claremont | 1.7 mi | — |
Neighborhood Census ACS (2019-2023)
Census data for ZIP 91711 (ACS 2019-2023 5-Year Estimates) · Data sources
Median Income
$121,970
Median Home Value
$870,300
Median Rent
$2,135/mo
Population
37,538
College Educated
59.3%
Homeownership
66%
Avg Commute
27.4 min
Poverty Rate
5.7%
Median Age
40.4
Community Profile
The community surrounding Sumner Elementary has a median household income of $121,970. It is a well-educated community where 59% of adults hold a bachelor's degree or higher. The median home value in the area is $870,300, with a median rent of $2,135/month. The local poverty rate of 5.7% is relatively low. The average commute for residents is 27 minutes. Source: U.S. Census ACS 2022 5-Year Estimates.
Similar Schools
Schools in the same state with comparable level, size, and ratings
| School | Rating |
|---|---|
| ALL SOULS WORLD LANGUAGE CATHOLIC SCHOOL Alhambra, CA | 6.8 |
| Allen (Decima M.) Elementary San Bruno, CA | 6.8 |
| Anna Hause Elementary Beaumont, CA | 6.8 |
| Antelope Elementary Red Bluff, CA | 6.8 |
| Aurelia Pennekamp Elementary Manhattan Beach, CA | 6.8 |
| Barfield Elementary Pomona, CA | 6.8 |
Frequently Asked Questions
Common questions about Sumner Elementary
What grades does Sumner Elementary serve?
Sumner Elementary serves students in grades Kindergarten through 6th.
How many students attend Sumner Elementary?
Sumner Elementary has an enrollment of approximately 442 students.
What is the student-teacher ratio at Sumner Elementary?
The student-teacher ratio at Sumner Elementary is 22.1:1. A lower ratio generally means more individual attention per student. The national average is approximately 16:1 for public schools.
How does Sumner Elementary rank in CA?
Sumner Elementary is ranked #3701 out of 9,533 schools in CA.
What is Sumner Elementary's MySchoolScout rating?
Sumner Elementary has a composite rating of 6.8 out of 10 on MySchoolScout. This score combines academic performance, student growth, and school environment into a single score. Equity data is shown separately for context.
What are the test scores at Sumner Elementary?
Based on the most recent state assessment data, Sumner Elementary has 43.7% math proficiency and 44.6% reading/ELA proficiency.
Is Sumner Elementary a charter school?
No, Sumner Elementary is not a charter school. It is a traditional public school operated by the local school district.
Is Sumner Elementary a Title I school?
No, Sumner Elementary is not currently a Title I school.
What does the Free & Reduced Lunch percentage mean for Sumner Elementary?
43.7% of students at Sumner Elementary qualify for free or reduced-price lunch. This is a commonly used indicator of economic need and provides important context when interpreting test scores.
Explore More Schools
Neighborhood Context
- City Safety
- High (2,433/100K)
FBI UCR 2024. City-level (Claremont). Data >1 year old.
Quick Facts NCES CCD (SY 2022-23)
- Grades
- Kindergarten – 6th
- Enrollment
- 442
- Student-Teacher Ratio
- 22.1:1
- Teachers (FTE)
- 20
- Free/Reduced Lunch
- 43.7%
- Type
- regular
- Setting
- Large Suburb
- County
- Los Angeles County
- Phone
- (909) 398-0320
- Data Year
- 2023–2024
Resources & Links
District
Claremont Unified- District Enrollment
- 6,261
- Schools in District
- 11
- Per-Pupil Spending
- $16,065
- District Rank
- #5 of 11
Other Schools in This District
How We Rate Schools
Every school receives a composite score from 1 to 10 based on four pillars: Academic Performance (50%), Student Growth (20%), Equity (15%), and Learning Environment (15%). Scores are built from publicly available data including standardized test results, enrollment figures, and school climate indicators.
Read our full methodologyRelated reading
- Best Elementary Schools in America: 2026 Rankingsbest schools
- Best Public Schools in California 2026: Top-Ranked Elementary, Middle & High Schoolsbest schools
- Best School Districts to Move To in 2026: A Data-Driven Guidebest schools
- Best Schools in Los Angeles, CA — 2026 Rankingsbest schools
- Best Schools in San Diego, CA — 2026 Rankingsbest schools
Get school insights in your inbox
New rankings, best-schools lists, and parent guides — delivered free. No spam, unsubscribe anytime.
We respect your privacy. Unsubscribe at any time.