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Very Good

#2343 of 9,533 schools in CA

Top 25% in state

Walnut High

High School · Walnut Valley Unified

400 North Pierre Rd., Walnut, CA 91789

Enrollment

2,138

Student-Teacher

23.2:1

Score

7.5

Grades

9th – 12th

Updated 2022-23

How this school compares

In Walnut

#3 of 10

public schools

California high schools

#412 of 1,892

In district

#4 of 15

Walnut Valley Unified

Equity

9.2 / 10

Exceptional

About Walnut High

Walnut High serves 2,138 students in grades 9-12 in the affluent community of Walnut, California. With 92 full-time equivalent teachers, the school maintains a student-teacher ratio of 23.2:1. This large suburban high school has earned strong recognition, ranking in the 90th percentile statewide at #985 out of 9,566 California schools and receiving a MySchoolScout rating of 8.2 out of 10.

Academically, Walnut High demonstrates solid performance with an impressive 9.1 out of 10 academic score. Students show particularly strong literacy skills, with 78% achieving proficiency or above in English Language Arts and Reading. Math performance is also noteworthy, with 61% of students reaching proficiency or above across grade levels.

The school serves a well-educated community where 53% of residents hold bachelor's degrees or higher, and the median household income reaches $123,555. With a low poverty rate of just 7.2% and median home values of $910,400, the surrounding ZIP code of 91789 reflects the economic stability that often supports educational achievement. Located at 400 North Pierre Road, Walnut High sits in the heart of this prosperous Los Angeles County suburb, serving families in a community known for its commitment to education and family-oriented lifestyle.

What Parents Should Know

Walnut High is a large school with 2,138 students enrolled. Larger schools typically offer a wider range of academic programs, electives, and extracurricular activities. Parents may want to ask about how the school maintains a sense of community and ensures students don't get lost in the crowd.

The student-teacher ratio at Walnut High is 23.2:1, 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 · 4/4 metrics
Student Progress5.7Average25%
Year-over-year improvement in student test scores.
View breakdown
Years of Data3
Annual Change-1.18 pts/yr
Data Period2019–2024
TrendDeclining
Academics9.0Exceptional25%
Student proficiency on state tests, adjusted for community poverty levels.
View breakdown
Math Proficiency61.3%
Reading/ELA Proficiency78.2%
Math vs. State Avg+33.3 pts
Reading vs. State Avg+22.3 pts
Overall Proficiency70%
Expected (poverty-adj.)60%
vs. Expected+9.3 pts
Adjusted Percentile84th
College Readiness9.8Exceptional30%
Graduation rates, AP course participation, and IB availability.
View breakdown
AP Participation33.9%
IB ProgramYes
Resources & Environment4.2Below Average20%
Student-teacher ratio, per-pupil spending, and attendance.
View breakdown
Student-Teacher Ratio23.2:1
Per-Pupil Spending$12,990

Walnut High — Students at Walnut High score 70% proficient, which is above what's typical for similar communities (expected: 60%).

How we calculate scores →

Equity & Diversity

Shown separately, not included in overall score

Free/Reduced Lunch

26.2%

Students qualifying for federal meal assistance

Test Scores CA CAASPP (2023-24)

Math Proficiency 65.9%
School
State
31.8%
ELA Proficiency 79.4%
School
State
51.5%

Based on 8 test records from CA state assessments. About our data

Proficiency Trend

↓ Declining

Average proficiency (% at or above grade level) across Math & ELA over time.

2019
Math
70%
ELA
81%
2021*
Math
71%
ELA
80%
2024
Math
61.3%
ELA
78.2%

* COVID-affected year — test participation was uneven nationwide. This data is weighted at 50% in the Growth score calculation.

Source: EdFacts (NCES) and state assessment data. Growth score: 5.7/10.

How Walnut High Compares

See how Walnut High performs across key quality dimensions compared to state benchmarks.

Overall Score
7.5/10
75th percentile in CA
Academic
9.0/10
9.0/10
Growth
5.7/10
Above average
Environment
4.2/10
Below average

Funding & Resources

Free/Reduced Lunch
Students eligible for subsidized meals
26%
Teaching Staff
23:1 student-teacher ratio
92 teachers

Programs & Offerings

AP/IB Programs IB Programme
33.9% participation·68 IB enrolled·CRDC 2020-21

Data as of 2020-21 · Source: CRDC via Urban Institute · Learn more

Location

400 North Pierre Rd., Walnut, CA 91789

Nearby Alternatives

Families considering Walnut High may also want to explore other high schools in the area. Stanley G. Oswalt Academy (rated 8.2/10, 1.7 miles away), which scores slightly higher. Another option is Walnut Elementary (rated 7.6/10, 1.4 miles away), with a very similar rating. Additionally, South Pointe Middle (rated 7.3/10, 2.1 miles away), with a very similar rating. For more schools in Walnut, see our Walnut schools guide .

Nearby Schools

20 within 2.3 mi
School Distance Rating
Suzanne Middle Walnut 0.2 mi 6.3
THE CROSS SCHOOL OF EDUCATION Walnut 0.2 mi
ALLAIS SCHOOL Walnut 0.8 mi 6.5
Vejar Elementary Walnut 0.7 mi 6.5
Ron Hockwalt Academies (Continuation) Walnut 1.0 mi 6.4
DISCOVERY WORLD MONTESSORI Walnut 1.4 mi
Cyrus J. Morris Elementary Walnut 1.2 mi 5.9
Walnut Elementary Walnut 1.4 mi 7.6
Leonard G. Westhoff Elementary Walnut 1.4 mi 6.4
LEARNING TREE WALNUT EDUCATION CENTER Walnut 1.5 mi
Learning Tree Walnut Education Center Walnut 1.5 mi
KID JUNCTION Walnut 1.6 mi
Institute of Knowledge Diamond Bar 1.7 mi
Collegewood Elementary Walnut Valley 1.9 mi 5.1
ST CHRISTOPHER-JOSEPH-AQUINAS ACADEMIC ACADEMY Diamond Bar 1.9 mi 5.2
Stanley G. Oswalt Academy Walnut 1.7 mi 8.2
South Pointe Middle Walnut 2.1 mi 7.3
Armstrong Elementary Diamond Bar 1.8 mi 6.2
Hollingworth Elementary West Covina 1.9 mi 5.8
Maple Hill Elementary Diamond Bar 2.3 mi 7.2

Neighborhood Census ACS (2019-2023)

Census data for ZIP 91789 (ACS 2019-2023 5-Year Estimates) · Data sources

Median Income

$125,742

Median Home Value

$936,800

Median Rent

$2,868/mo

Population

40,933

College Educated

53.2%

Homeownership

82.4%

Avg Commute

35.4 min

Poverty Rate

7.7%

Median Age

46.3

Community Profile

The community surrounding Walnut High has a median household income of $125,742. It is a well-educated community where 53% of adults hold a bachelor's degree or higher. The median home value in the area is $936,800, with a median rent of $2,868/month. The local poverty rate of 7.7% is relatively low. The average commute in the area is 35 minutes, which is above the national average. Source: U.S. Census ACS 2022 5-Year Estimates.

Similar Schools

Schools in the same state with comparable level, size, and ratings

School Rating
Alameda High Alameda, CA 7.5
Arroyo High El Monte, CA 7.5
Bell Senior High Bell, CA 7.5
Citrus Hill High Perris, CA 7.5
Claremont High Claremont, CA 7.5
Davis Senior High Davis, CA 7.5

Frequently Asked Questions

Common questions about Walnut High

What grades does Walnut High serve?

Walnut High serves students in grades 9th through 12th.

How many students attend Walnut High?

Walnut High has an enrollment of approximately 2,138 students.

What is the student-teacher ratio at Walnut High?

The student-teacher ratio at Walnut High is 23.2:1. A lower ratio generally means more individual attention per student. The national average is approximately 16:1 for public schools.

How does Walnut High rank in CA?

Walnut High is ranked #2343 out of 9,533 schools in CA.

What is Walnut High's MySchoolScout rating?

Walnut High has a composite rating of 7.5 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 Walnut High?

Based on the most recent state assessment data, Walnut High has 65.9% math proficiency and 79.4% reading/ELA proficiency.

Is Walnut High a charter school?

No, Walnut High is not a charter school. It is a traditional public school operated by the local school district.

Is Walnut High a Title I school?

No, Walnut High is not currently a Title I school.

What does the Free & Reduced Lunch percentage mean for Walnut High?

26.2% of students at Walnut High qualify for free or reduced-price lunch. This is a commonly used indicator of economic need and provides important context when interpreting test scores.

11 schools nearby View map →

Neighborhood Context

Walk Score
43 Car-Dependent
Transit Score
31 Some Transit
Bike Score
52 Bikeable
City Safety
High (2,022/100K)

Powered by Walk Score

FBI UCR 2024. City-level (Walnut). Data >1 year old.

Quick Facts NCES CCD (SY 2022-23)

Grades
9th – 12th
Enrollment
2,138
Student-Teacher Ratio
23.2:1
Teachers (FTE)
92
Free/Reduced Lunch
26.2%
Type
regular
Setting
Large Suburb
County
Los Angeles County
Data Year
2023–2024

District

Walnut Valley Unified
District Enrollment
13,815
Schools in District
15
Per-Pupil Spending
$13,971
District Rank
#4 of 15

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 methodology

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