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Pomona Unified

Armstrong Elementary

22750 Beaverhead Drive, Diamond Bar, CA 91765-1566

Summary

Armstrong Elementary is underperforming.

Only 47.4% of students are reading at grade level in Armstrong Elementary, and it is trending down.Trending down

Math is weaker at 29.3%; most students are not yet at grade level, and it is quickly trending down.Trending down

Proficiency Stats
Current Reading Proficiency47.4%
Current Math Proficiency29.3%
Reading State Rank2025/4674 (57th percentile)
Math State Rank3041/4674 (35th percentile)
Other Stats
Student / Teacher Ratio19:1
Student Enrollment251
Low-Income Students165 (67.3%)
English Learners26 (10.6%)
Quick links
School WebsiteGreat SchoolsNicheEd-DataCAASPP
2-Year Trends
2023 - 2025
Reading -6.9%Trend down•Math -10.5%Trend down
Showing school-level proficiency for the last three years

Reading Proficiency Scores

Race, economic status, English learner status, and distribution of scores by grade.

Race and Ethnicity
Distribution of Scores by Grade
Low-Income vs Non-Low-Income
Low-Income
Non-Low-Income
Low-Income -5.0%Trend down•
Non-Low-Income -12.7%Trend down
Showing subgroup proficiency for the last three years
English Learners vs English Native
English Learners
English Native
English Learners -3.3%Trend down•
English Native -8.6%Trend down
Showing subgroup proficiency for the last three years

Math Proficiency Scores

Race, economic status, English learner status, and distribution of scores by grade.

Race and Ethnicity
Distribution of Scores by Grade
Low-Income vs Non-Low-Income
Low-Income
Non-Low-Income
Low-Income -7.9%Trend down•
Non-Low-Income -18.8%Trend down
Showing subgroup proficiency for the last three years
English Learners vs English Native
English Learners
English Native
English Learners +10.6%Trend up•
English Native -17.5%Trend down
Showing subgroup proficiency for the last three years
Markdown Version