Armstrong Elementary
#602
Best Student:Teacher Ratio in California
257
Students
18.4:1
S:T Ratio
School Snapshot
Key metrics at a glanceStudent-Teacher Ratiostudents per teacher
18:1
B-
Average
Graduation Rate
86%
A
Excellent
This Week at Armstrong – April 8, 2026
42 students practicing on Varsity Tutors
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School Details
Address
22750 Beaverhead Dr., Diamond Bar, CA 91765
Phone
(909)397-4563
Website
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District
Pomona Unified School District
Academic Calendar
2025-2026
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