Armstrong Elementary
PublicElementaryGrades K–6
22750 Beaverhead Dr., Diamond Bar, CA 91765 · (909) 397-4563 · Part of Pomona Unified School District
Students
251
Students per teacher
19:1
Free or reduced lunch
67%
Setting
Suburb
Grades
K–6
What stands out about Armstrong Elementary
- Enrollment down 13.7% since 2020
- No state test scores published for this school yet
Location
Directions ↗
22750 Beaverhead Dr., Diamond Bar
Students
Enrollment by grade
Kindergarten67
Grade 131
Grade 235
Grade 331
Grade 437
Grade 526
Grade 624
Enrollment over time
291’20
260’21
257’22
249’23
251’24
Down 13.7% since 2020.
Who goes here
Hispanic 60%Asian 15%White 10%Two or more races 9%Black 6%
As reported to NCES, share of students with a reported race or ethnicity.
What neighbors say
No ratings yet. Be the first neighbor to rate it.
Parents talk
Conversations in Town Square that mention Armstrong Elementary.
Other schools in Pomona Unified School District
School facts: U.S. Department of Education (NCES), 2024-2025 school year. Scores: EDFacts. The School Grade is our own summary of state test results. Neighbor ratings are opinions, not an official measure of school quality.