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Schools in 91789 — Walnut, California: 91789 schools aren't just reaching proficiency — they're pushing students beyond it.

91789 has 10 ranked schools in Walnut, averaging a Scope Score of 66.8/100 — 21.9 points above the state average of 44.8 (CDE CAASPP 2025). Scores range from 53.9 to 78.3, a 24.4-point spread. 5 schools rank in the 90th percentile or above statewide.

Avg Scope Score
66.8
State avg: 44.8
SchoolScope composite
Score Range
24.4
53.9 – 78.3
Avg Exceeded %
44.5%
State avg: 21.3%
Chronic Absenteeism
7.7%
State avg: 17.9%
Schools Ranked
10
With Scope Scores

How 91789 schools perform

The top-ranked school is South Pointe Middle with a Scope Score of 78 and 55.5% of students exceeding standard.

These schools are pushing students past the bar, not just to it. Schools here average 44.5% exceeding standard — well above the statewide average of 21.3%.

Average proficiency falls 3.1 percentage points from grade 3 to grade 5 across 91789. This pattern in test scores may reflect a variety of factors and is worth examining school by school.

Chronic absenteeism across 91789 averages 7.7%, below the state average of 17.9%. CDE CAASPP 2025.

How 91789 compares to nearby zip codes

ZipCitySchoolsAvg Scorevs 91789
91789Walnut10Solid
66.8/100
91790West Covina9Developing
44.3/100
-22.5
91791West Covina9Solid
50.9/100
-15.9
91786Upland10Developing
43.1/100
-23.7
91780Temple City4Solid
54.9/100
-11.9

Source: CDE CAASPP 2025, analyzed by SchoolScope.

School archetypes in 91789

3 High Ceiling2 Strong All-Around1 Solid Base1 Growth Engine3 Building Momentum

Hidden gems: 1 school in 91789 is classified as Growth Engine — showing positive growth trajectories that raw proficiency scores alone don't capture. These are schools where students leave with more than they arrived with.

Archetypes are data-driven labels based on Scope Score dimensions. Learn more

For the data nerds

All schools in 91789

ranked by Scope Score · 2024–25 CAASPP

#SchoolExceededScore
1South Pointe Middle
Walnut Valley Unified High Ceiling
55.5%Strong
78/100
2Leonard G. Westhoff Elementary
Walnut Valley Unified High Ceiling
55.3%Strong
74/100
3Walnut Elementary
Walnut Valley Unified High Ceiling
52.5%Strong
73/100
4Walnut High
Walnut Valley Unified Strong All-Around
47.0%Strong
72/100
5Suzanne Middle
Walnut Valley Unified Strong All-Around
43.2%Strong
70/100
6Vejar Elementary
Walnut Valley Unified Building Momentum
40.4%Solid
66/100
7Cyrus J. Morris Elementary
Walnut Valley Unified Solid Base
43.3%Solid
63/100
8Ybarra Academy for the Arts and Technology
Rowland Unified Growth Engine
27.1%Solid
59/100
9Collegewood Elementary
Walnut Valley Unified Building Momentum
41.7%Solid
59/100
10Stanley G. Oswalt Academy
Rowland Unified Building Momentum
38.7%Solid
54/100
Source: CDE CAASPP 2025 · 10 schools in 91789Methodology · Explore all schools

Schools in 91789 on the map

Data source: California Department of Education · CAASPP 2024-25 · Methodology

Scores are SchoolScope's analysis of public data, not official CDE ratings. They represent one way of interpreting test results and should not be the sole basis for school decisions.

What Scope Scores can't tell you about 91789

Numbers tell you whether students are clearing the bar. A school visit tells you whether they're happy doing it. These metrics are intentionally missing from the Scope Score: class sizes and student-teacher interaction quality; arts, music, athletics, and enrichment programs; teacher experience and turnover; campus safety and social-emotional support; parent and community engagement; quality of special education and gifted programs; how school zones and enrollment boundaries affect access. Full methodology

Frequently asked questions

Are the schools in 91789 (Walnut) good?
91789 has 10 ranked schools in Walnut, averaging a Scope Score of 66.8/100 — 21.9 points above the state average. 44.5% of students exceed the state standard on average. Data source: California Department of Education CAASPP 2025, analyzed by SchoolScope.
What is the best school in 91789?
The highest-scoring school in zip code 91789 is South Pointe Middle with a Scope Score of 78/100 and 55.5% of students exceeding the state standard. See full methodology.
How do 91789 schools compare to the state average?
Schools in zip code 91789 average a Scope Score of 66.8/100 — 21.9 points above the state average of 44.8. The exceeded rate averages 44.5% vs. 21.3% statewide.
How many schools are in zip code 91789?
Zip code 91789 has 10 ranked schools with Scope Scores. Schools are ranked using a weighted composite of CAASPP test performance, growth trajectory, chronic absenteeism, and suspension rate. Schools with insufficient testing data are not ranked.
What does the Scope Score measure?
The Scope Score is SchoolScope's proprietary composite rating (0–100) based on seven dimensions of publicly available California school data: the exceeded-vs-met standard split, overall proficiency, grade 3–5 growth, chronic absenteeism, suspension rate, ELPAC English Learner proficiency, and baseline proficiency. Full methodology and weights.