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Colton Joint Unified

Walter Zimmerman Elementary

11050 Linden Avenue, Bloomington, CA 92316-3118

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Summary

Walter Zimmerman Elementary is badly underperforming.

Reading and math results average to the 19th percentile among comparable California schools.

Only 31.0% of students met California's reading standard, and it is trending down slightly.Trending down

Math is weaker: 18.4% of students met California's math standard, and it is trending down slightly.Trending down

Proficiency Stats
Current Reading Proficiency31.0%
Current Math Proficiency18.4%
Reading State Rank3506/4674 (25th percentile)
Math State Rank4071/4674 (13th percentile)
Other Stats
Student / Teacher Ratio21:1
Student Enrollment512
Low-Income Students476 (93.0%)
English Learners155 (30.3%)
Quick links
School WebsiteGreat SchoolsNicheEd-DataCAASPP
2-Year Trends
2023 - 2025
Reading -2.8%Trend down•Math -1.8%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 -3.2%Trend down•
Non-Low-Income +4.3%Trend up
English Learners vs English Native
English Learners
English Native
English Learners -5.1%Trend down•
English Native +5.0%Trend up

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 -2.7%Trend down•
Non-Low-Income +13.3%Trend up
English Learners vs English Native
English Learners
English Native
English Learners -1.7%Trend down•
English Native +3.5%Trend up
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