SA
Elementary SchoolsGrades P-6

Armstrong Elementary

Pomona Unified · Los Angeles County · 22750 Beaverhead Drive, Diamond Bar, CA 91765-1566

(909) 397-4563 · www.pusd.org

6/10
#2805
Rank 2805 out of 5,722
Top 49%
English Language Arts7/10 · #2284 · 60th percentile
Mathematics5/10 · #3158 · 45th percentile
Science5/10 · #3276 · 42nd percentile

English Language Arts

Math Trend

Science Trend

School Overview

Armstrong Elementary sits in Diamond Bar, one of the more family-friendly pockets of the eastern San Gabriel Valley, where well-kept neighborhoods and a strong sense of community make it a popular landing spot for families putting down roots. The school shows particular strength in English, and while math and science scores are closer to average, it sits comfortably in the middle of the pack statewide — a solid neighborhood option in an area where parents tend to be engaged and involved. Families drawn to Diamond Bar's suburban feel, good parks, and relatively easy freeway access to both LA and the Inland Empire will find Armstrong a reasonable fit for the early grades.

Student Demographics

114 students tested · 2024-25 school year

Ethnicity

Hispanic
69 (61%)
White
12 (11%)
African American
8 (7%)
Filipino
8 (7%)
Multiple Races
6 (5%)
Asian
5 (4%)
Other
6 (5%)

Key Indicators

English Learners12 (11%)
Socioeconomically Disadvantaged80 (70%)
Students with Disabilities26 (23%)

Staff & Teachers(2024-25)

251
Enrollment
13.5
Teachers (FTE)
18.6:1
Student-Staff Ratio
1
Administrators (FTE)
20.8
Avg Class Size*(2023-24)

Community Enrichment Programs

This supplementary score measures the availability of enrichment programs — such as tutoring, music, dance, sports, and arts — within 3 miles of the school. Schools in communities with more diverse and accessible programs score higher.

Nearby Programs6/10 · #2626 · 57th percentile

122 programs within 3 miles. Ranked among Elementary Schools in California.

Nearby Libraries

No programs found