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CA Regular School Elementary School

Armstrong Elementary

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22750 Beaverhead Dr., Diamond Bar, CA 91765 • Los Angeles County
(909) 397-4563
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Student Enrollment & Staffing Overview

NCES 2024-2025
Total Students
251
Teachers (FTE)
13.5
Student-Teacher Ratio
18.6:1
FRPL Eligible
168
(66.9%)
National School Lunch Program (FRPL) Eligibility Total Eligible: 168 of 251 (66.9%)
Free Lunch: 123 (49%)
Reduced-Price: 45 (17.9%)
Paid / Not Eligible: 83 (33.1%)

Multi-Year Enrollment Trends & Growth (2020-2021 – 2024-2025)

0 200 400 2020-2021: 291 students 291 2020-2021 2021-2022: 260 students 260 -10.7% 2021-2022 2022-2023: 257 students 257 -1.2% 2022-2023 2023-2024: 249 students 249 -3.1% 2023-2024 2024-2025: 251 students 251 +0.8% 2024-2025

Student Diversity Distribution

Demographic composition of enrolled students across racial & ethnic backgrounds.

NCES 2024-2025
Hispanic / Latino: 150 (59.8%) Asian: 37 (14.7%) White: 25 (10%) Two or More Races (Multiracial): 23 (9.2%) Black or African American: 16 (6.4%)
251 Students
Hispanic / Latino 150 59.8%
Asian 37 14.7%
White 25 10%
Two or More Races (Multiracial) 23 9.2%
Black or African American 16 6.4%

Grade-Level Enrollment Distribution

Distribution of student body across reported grade cohorts.

Total: 251 Students
Grade 1: 31 (12.4%) Grade 2: 35 (13.9%) Grade 3: 31 (12.4%) Grade 4: 37 (14.7%) Grade 5: 26 (10.4%) Grade 6: 24 (9.6%) Kindergarten: 67 (26.7%)
251 Students
Grade 1 31 12.4%
Grade 2 35 13.9%
Grade 3 31 12.4%
Grade 4 37 14.7%
Grade 5 26 10.4%
Grade 6 24 9.6%
Kindergarten 67 26.7%

Student Gender Distribution

Reported enrollment counts by gender cohort.

NCES 2024-2025
M
Male Students
143
57%
F
Female Students
108
43%