Top Rankings
Walnut Valley Unified School District ranks among the top 20% of public school district in California for:
Category
Attribute
Overall Rank
Highest overall rank (Top 5%)
Math Proficiency
Highest math proficiency (Top 5%)
Reading/Language Arts Proficiency
Highest reading/language arts proficiency (Top 5%)
Science Proficiency
Highest science proficiency (Top 5%)
Graduation Rate
Highest graduation rate (Top 5%)
Community Size
Largest student body (number of students) (Top 1%)
For the 2026 school year, there are 12 public elementary schools serving 9,245 students in Walnut Valley Unified School District. This district's average elementary testing ranking is 10/10, which is in the top 5% of public elementary schools in California.
Public Elementary Schools in Walnut Valley Unified School District have an average math proficiency score of 72% (versus the California public elementary school average of 36%), and reading proficiency score of 75% (versus the 46% statewide average).
The top-ranked public elementary schools in Walnut Valley Unified School District are Maple Hill Elementary School, Quail Summit Elementary School and Leonard G. Westhoff Elementary School. Overall testing rank is based on a school's combined math and reading proficiency test score ranking. Minority enrollment is 97% of the student body (majority Asian), which is more than the California public elementary school average of 80% (majority Hispanic).
Overview
This School District
This State (CA)
# Schools
15 Schools
7,677 Schools
# Students
13,992 Students
3,817,118 Students
# Teachers
554 Teachers
173,969 Teachers
Student-Teacher Ratio
25:1
25:1
Student By Grade
District Rank
Walnut Valley Unified School District, which is ranked #59 of all 1,904 school districts in California (based off of combined math and reading proficiency testing data) for the 2022-2023 school year.
The school district's graduation rate of 97% has decreased from 98% over five school years.
Overall District Rank
#62 out of 1932 school districts
(Top 5%)
(Top 5%)
Math Test Scores (% Proficient)
71%
34%
Reading/Language Arts Test Scores (% Proficient)
76%
47%
Science Test Scores (% Proficient)
57%
29%
Graduation Rate
97%
87%
Students by Ethnicity:
Diversity Score
0.47
0.64
% American Indian
n/a
n/a
% Asian
70%
12%
% Hispanic
21%
56%
% Black
1%
5%
% White
4%
20%
% Hawaiian
n/a
n/a
% Two or more races
4%
7%
All Ethnic Groups
District Revenue and Spending
The revenue/student of $14,210 in this school district is less than the state median of $20,100. The school district revenue/student has grown by 9% over four school years.
The school district's spending/student of $14,506 is less than the state median of $18,511. The school district spending/student has grown by 10% over four school years.
Total Revenue
$199 MM
$116,387 MM
Spending
$203 MM
$107,188 MM
Revenue / Student
$14,210
$20,100
Spending / Student
$14,506
$18,511
Best Walnut Valley Unified School District Public Elementary Schools (2026)
School
(Math and Reading Proficiency)
(Math and Reading Proficiency)
Location
Quick Facts
Rank: #11.
Maple Hill Elementary School
(Math: 86% | Reading: 82%)
Rank:
Rank:
10/
Top 5%10
1350 Maple Hill Rd.
Diamond Bar, CA 91765
(909) 861-6224
Diamond Bar, CA 91765
(909) 861-6224
Gr: K-5 | 556 students Student-teacher ratio: 26:1 Minority enrollment: 97%
Rank: #22.
Quail Summit Elementary School
(Math: 83% | Reading: 79%)
Rank:
Rank:
10/
Top 5%10
23330 East Quail Summit Dr.
Diamond Bar, CA 91765
(909) 861-3004
Diamond Bar, CA 91765
(909) 861-3004
Gr: K-5 | 696 students Student-teacher ratio: 25:1 Minority enrollment: 97%
Rank: #33.
Leonard G. Westhoff Elementary School
(Math: 81% | Reading: 77%)
Rank:
Rank:
10/
Top 5%10
1323 Country Hollow
Walnut, CA 91789
(909) 594-6483
Walnut, CA 91789
(909) 594-6483
Gr: K-5 | 654 students Student-teacher ratio: 26:1 Minority enrollment: 96%
Rank: #44.
Walnut Elementary School
(Math: 78% | Reading: 77%)
Rank:
Rank:
10/
Top 5%10
841 South Glenwick
Walnut, CA 91789
(909) 594-1820
Walnut, CA 91789
(909) 594-1820
Gr: K-5 | 706 students Student-teacher ratio: 26:1 Minority enrollment: 99%
Rank: #55.
Chaparral Middle School
(Math: 74% | Reading: 80%)
Rank:
Rank:
10/
Top 5%10
1405 South Spruce Tree Dr.
Diamond Bar, CA 91765
(909) 861-6227
Diamond Bar, CA 91765
(909) 861-6227
Gr: 6-8 | 1,349 student Student-teacher ratio: 28:1 Minority enrollment: 96%
Rank: #66.
South Pointe Middle School
(Math: 75% | Reading: 78%)
Rank:
Rank:
10/
Top 5%10
20671 Larkstone Dr.
Walnut, CA 91789
(909) 595-8171
Walnut, CA 91789
(909) 595-8171
Gr: 6-8 | 979 students Student-teacher ratio: 26:1 Minority enrollment: 98%
Rank: #77.
Evergreen Elementary School
(Math: 69% | Reading: 74%)
Rank:
Rank:
10/
Top 10%10
2450 South Evergreen Springs
Diamond Bar, CA 91765
(909) 594-1041
Diamond Bar, CA 91765
(909) 594-1041
Gr: K-5 | 709 students Student-teacher ratio: 25:1 Minority enrollment: 97%
Rank: #88.
Castle Rock Elementary School
(Math: 69% | Reading: 71%)
Rank:
Rank:
10/
Top 10%10
2975 Castle Rock Rd.
Diamond Bar, CA 91765
(909) 598-5006
Diamond Bar, CA 91765
(909) 598-5006
Gr: K-5 | 684 students Student-teacher ratio: 26:1 Minority enrollment: 97%
Rank: #9 - 109. - 10.
Collegewood Elementary School
(Math: 67% | Reading: 70%)
Rank:
Rank:
9/
Top 20%10
20725 East Collegewood Dr.
Walnut, CA 91789
(909) 598-5308
Walnut, CA 91789
(909) 598-5308
Gr: K-5 | 606 students Student-teacher ratio: 25:1 Minority enrollment: 97%
Rank: #9 - 109. - 10.
Cyrus J. Morris Elementary School
(Math: 67% | Reading: 70%)
Rank:
Rank:
9/
Top 20%10
19875 East Calle Baja
Walnut, CA 91789
(909) 594-0053
Walnut, CA 91789
(909) 594-0053
Gr: K-5 | 485 students Student-teacher ratio: 27:1 Minority enrollment: 98%
Rank: #1111.
Suzanne Middle School
(Math: 62% | Reading: 72%)
Rank:
Rank:
9/
Top 20%10
525 Suzanne Rd.
Walnut, CA 91789
(909) 594-1657
Walnut, CA 91789
(909) 594-1657
Gr: 6-8 | 1,190 student Student-teacher ratio: 26:1 Minority enrollment: 96%
Rank: #1212.
Vejar Elementary School
(Math: 61% | Reading: 65%)
Rank:
Rank:
9/
Top 20%10
20222 Vejar Rd.
Walnut, CA 91789
(909) 594-1434
Walnut, CA 91789
(909) 594-1434
Gr: K-5 | 631 students Student-teacher ratio: 23:1 Minority enrollment: 96%
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