Walter Zimmerman Elementary

Summary:

Walter Zimmerman Elementary is a public elementary school in Bloomington, California, serving 559 students in grades K-6 as part of the Colton Joint Unified School District. However, the school faces significant challenges, including high chronic absenteeism, low academic performance, and disparities in student subgroup outcomes.

Walter Zimmerman Elementary has seen a sharp increase in chronic absenteeism, rising from 9.7% in 2017-2018 to 31.8% in 2022-2023, which is notably higher than nearby schools like Palmetto Elementary and Dolores Huerta International Academy. Academically, the school's proficiency rates in English Language Arts and Mathematics are consistently lower than the Colton Joint Unified School District and the state of California averages, with only 34.87% of students proficient or better in ELA and 18.69% in Mathematics in 2023-2024.

The school's student subgroups, such as English Language Learners, Special Education students, and Disabled students, also perform significantly worse than their peers across the state. Additionally, Walter Zimmerman Elementary has an extremely high percentage of students from low socioeconomic backgrounds, with 94.99% of students qualifying for free or reduced-price lunch in 2022-2023, which is much higher than the nearby schools. Addressing these challenges will require a comprehensive, data-driven approach that leverages the strengths of higher-performing schools in the area and targets the specific needs of the school's student population.


Detail:

Public K-6

 11050 Linden Ave.
       Bloomington, CA  92316-3118


(909) 580-5019

District: Colton Joint Unified

SchoolDigger Rank:
4206th of 5,862 California Elementary Schools

Per Pupil Expenditures:  $6,339 Help


Students who attend Walter Zimmerman Elementary usually attend:

Middle:    Ruth O. Harris Middle
High:    Bloomington High

Student/teacher ratio:  22.8 Help
Number of students:  526

Racial breakdown:

Hispanic:
98.1%
White:
0.8%
African American:
0.4%
more

Free/discounted lunch recipients:  93.3% Help


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Performance Trends
Help
Compare Details Walter Zimmerman Elementary ranks worse than 71.8% of elementary schools in California. It also ranks 9th among 18 ranked elementary schools in the Colton Joint Unified School District. (See more...)
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Compare Details In 2024 the calculated Average Standard Score was 26.92. (See more...)
Help
Chronic absenteeism in a school refers to a situation where students repeatedly miss school, with the threshold often defined as missing 10% or more of school days for any reason, excused or unexcused.
Student Body
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Compare Details Racial makeup is: Hispanic (98.1%), White (0.8%), Asian (0.4%). (See more...)
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Compare Details 93.3% of students are receiving a free or discounted lunch. (See more...)
Teachers
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Compare Details The student/teacher ratio at Walter Zimmerman Elementary is 22.8, which is the 7th best among 18 elementary schools in the Colton Joint Unified School District. (See more...)
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Compare Walter Zimmerman Elementary employs 23 full-time teachers.
Finance
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Compare Details The average total spent per student at Walter Zimmerman Elementary is $6,339. 11 elementary schools in the Colton Joint Unified School District spend more per student.
Schooldigger 2024 Rankings:

Walter Zimmerman Elementary:

SchoolDigger ranks Walter Zimmerman Elementary 4206th of 5862 California public elementary schools. (See Walter Zimmerman Elementary in the ranking list.)

Elementary School Test Score Ratings by Student Subgroup:


English Language Learner students:
Special Education students:
Low Socio Economic Status students:
Female students:
Male students:
Hispanic students:


Colton Joint Unified:

SchoolDigger ranks Colton Joint Unified 1219th of 1568 California school districts. (See district ranking list.)


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Rank History for Walter Zimmerman Elementary

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Rank History for all students at Walter Zimmerman Elementary

Year Avg Standard Score Statewide Rank Total # Ranked Elementary Schools CA State Percentile SchoolDigger Rating
2004 13.76 4431st 4809 7.9%
2005 12.02 4519th 4822 6.3%
2006 12.35 4519th 4818 6.2%
2007 12.37 4805th 5113 6.0%
2008 10.41 4907th 5113 4.0%
2009 7.80 5086th 5193 2.1%
2010 15.06 4895th 5314 7.9%
2011 28.69 4079th 5377 24.1%
2012 34.36 3637th 5390 32.5%
2013 38.50 3422nd 5530 38.1%
2015 21.76 4451st 5611 20.7%
2016 27.35 3983rd 5614 29.1%
2017 31.80 3694th 5692 35.1%
2018 30.42 3789th 5662 33.1%
2019 34.49 3573rd 5789 38.3%
2022 29.52 3905th 5883 33.6%
2023 26.59 4220th 5874 28.2%
2024 26.92 4206th 5862 28.2%
See the entire list of California Elementary School Rankings!

Rank History for English Language Learner students at Walter Zimmerman Elementary

Year Avg Standard Score Statewide Rank Total # Ranked Elementary Schools CA State Percentile SchoolDigger Rating
2018 44.04 1568th 3246 51.7%
2019 44.54 1519th 3275 53.6%
2022 44.62 1497th 3311 54.8%
2023 39.97 1828th 3250 43.8%
2024 34.22 2233rd 3160 29.3%
See the entire list of Best California Elementary Schools for English Language Learner Students!

Rank History for Special Education students at Walter Zimmerman Elementary

Year Avg Standard Score Statewide Rank Total # Ranked Elementary Schools CA State Percentile SchoolDigger Rating
2023 27.21 1785th 2420 26.2%
2024 18.63 2468th 2634 6.3%
See the entire list of Best California Elementary Schools for Special Education Students!

Rank History for Low Socio Economic Status students at Walter Zimmerman Elementary

Year Avg Standard Score Statewide Rank Total # Ranked Elementary Schools CA State Percentile SchoolDigger Rating
2018 44.56 2706th 5084 46.8%
2019 43.54 2858th 5173 44.8%
2022 39.97 3009th 5264 42.8%
2023 36.77 3336th 5374 37.9%
2024 36.43 3419th 5511 38.0%
See the entire list of Best California Elementary Schools for Low Socio Economic Status Students!

Rank History for Female students at Walter Zimmerman Elementary

Year Avg Standard Score Statewide Rank Total # Ranked Elementary Schools CA State Percentile SchoolDigger Rating
2018 30.13 3756th 5413 30.6%
2019 37.43 3268th 5492 40.5%
2022 31.09 3641st 5635 35.4%
2023 28.16 3950th 5617 29.7%
2024 32.72 3587th 5605 36.0%
See the entire list of Best California Elementary Schools for Female Students!

Rank History for Disabled students at Walter Zimmerman Elementary

Year Avg Standard Score Statewide Rank Total # Ranked Elementary Schools CA State Percentile SchoolDigger Rating
2018 18.72 2023rd 2128 4.9%
2022 18.67 2063rd 2227 7.4%
See the entire list of Best California Elementary Schools for Disabled Students!

Rank History for Male students at Walter Zimmerman Elementary

Year Avg Standard Score Statewide Rank Total # Ranked Elementary Schools CA State Percentile SchoolDigger Rating
2018 32.04 3549th 5431 34.7%
2019 32.91 3553rd 5510 35.5%
2022 29.16 3860th 5663 31.8%
2023 25.35 4217th 5650 25.4%
2024 22.22 4508th 5636 20.0%
See the entire list of Best California Elementary Schools for Male Students!

Rank History for Hispanic students at Walter Zimmerman Elementary

Year Avg Standard Score Statewide Rank Total # Ranked Elementary Schools CA State Percentile SchoolDigger Rating
2018 42.78 2685th 4830 44.4%
2019 48.36 2394th 4963 51.8%
2022 42.46 2713th 5084 46.6%
2023 38.28 3045th 5098 40.3%
2024 38.12 3106th 5102 39.1%
See the entire list of Best California Elementary Schools for Hispanic Students!

Data source: test scores: California Department of Education, rankings: SchoolDigger.com

As you review the school rankings data, please be aware that some of the information from certain demographics is missing. The reason for this omission is that the data has been redacted from the source data itself due to low population samples in these specific demographic groups.

Redacting data from low population samples is a necessary step to ensure the reliability and accuracy of the results, as small sample sizes may not be representative of the broader population. Additionally, this measure helps protect the privacy of individuals belonging to these demographic groups.

Walter Zimmerman Elementary Test Scores
Tests: 
  
Grades: 
  
Years: 
  
Group by: 
District Scores:
State Scores:    
  
Subgroup: 







Data source: California Department of Education

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Enrollment information for Walter Zimmerman Elementary

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Year White African American Asian Hispanic American Indian Pacific Islander Two or More Races Not Specified Total
1988 359 20 12 309 5 n/a n/a 0 705
1989 337 21 8 328 6 n/a n/a 0 700
1990 333 21 4 400 5 n/a n/a 0 763
1991 279 35 12 420 17 n/a n/a 0 763
1992 263 27 7 441 9 n/a n/a 0 747
1993 237 29 9 438 8 n/a n/a 0 721
1994 180 28 13 488 11 n/a n/a 0 720
1995 160 23 20 548 9 n/a n/a 0 760
1996 160 23 20 548 9 n/a n/a 0 760
1997 155 30 9 573 5 n/a n/a 0 772
1998 128 39 7 595 7 n/a n/a 0 776
1999 110 29 5 630 5 n/a n/a 46 825
2000 120 31 6 674 6 n/a n/a 2 839
2001 126 33 6 713 4 n/a n/a 0 882
2002 86 28 14 738 4 n/a n/a 0 870
2003 86 28 14 738 4 n/a n/a 0 870
2004 64 36 14 780 4 n/a n/a 0 898
2005 71 28 14 815 5 n/a n/a 0 933
2006 57 28 11 801 5 n/a n/a 0 902
2007 44 20 17 730 5 n/a n/a 0 816
2008 25 14 13 760 5 n/a n/a 0 817
2009 31 12 6 754 2 5 3 0 813
2010 30 10 4 762 2 6 0 0 814
2011 31 5 6 743 2 4 0 0 791
2012 29 3 6 723 2 2 1 0 766
2013 22 5 5 709 1 1 0 0 743
2014 14 5 4 751 1 1 0 0 776
2015 17 6 2 727 1 0 0 0 753
2016 13 9 3 727 1 1 1 0 755
2017 10 10 3 689 1 2 1 0 716
2018 8 8 2 663 0 4 0 0 685
2019 10 4 2 611 0 4 1 0 632
2020 11 1 3 580 0 7 1 0 603
2021 5 3 2 563 1 3 1 0 578
2022 3 5 2 546 0 1 1 0 558
2023 5 2 2 548 0 2 0 0 559
2024 4 2 2 516 0 0 2 0 526

Data source: National Center for Education Statistics, U.S. Dept of Education.

About Enrollment/Ethnicity

For more information about how the Department of Education defines ethnicity, see Defining Race and Ethnicity Data, National Center for Education Statistics

Students eligible for free or discounted lunch at Walter Zimmerman Elementary

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Compare
Year # Students Full-time Teachers Student/Teacher ratio % Free/Discounted Lunch
1988 705 24.0 29.3 n/a
1989 700 25.0 28.0 n/a
1990 763 27.0 28.2 n/a
1991 763 33.0 23.1 n/a
1992 747 33.5 22.2 58.2
1993 721 29.0 24.9 60.7
1994 720 27.5 26.2 65.8
1995 760 28.5 26.7 73.6
1996 760 28.5 26.7 73.6
1997 772 34.0 22.7 74.2
1998 776 38.0 20.4 77.2
1999 825 41.0 20.1 84.9
2000 839 40.5 20.7 82.9
2001 882 42.3 20.9 77.8
2002 870 40.6 21.4 67.5
2003 870 40.6 21.4 67.5
2004 898 41.6 21.6 76.1
2005 933 42.5 22.0 75.6
2006 902 44.5 20.3 70
2007 816 42.0 19.4 86.8
2008 817 44.0 18.6 90
2009 813 39.5 19.1 89.7
2010 814 39.0 20.8 88.8
2011 791 n/a n/a 91.4
2012 766 33.0 23.2 n/a
2013 743 33.0 22.5 93.7
2014 776 32.0 24.2 95.5
2015 753 30.0 25.1 95.1
2016 755 30.0 25.1 94.2
2017 716 30.0 23.8 92.6
2018 685 27.0 25.3 94.3
2019 632 26.0 24.3 82.1
2020 603 n/a n/a 94
2021 578 23.1 24.9 92.9
2022 558 23.0 24.2 74.6
2023 559 23.0 24.3 95
2024 526 23.0 22.8 93.3

Data source: National Center for Education Statistics, U.S. Dept of Education.

About Students eligible for discounted/free lunch:

The National School Lunch Program (NSLP) provides low-cost or free meals to students in U.S. public and nonprofit private schools based on household income. Those with incomes below 130% of the poverty line receive free lunch, while those between 130% and 185% qualify for reduced-price lunch. The percentage of students receiving free or reduced-price lunch serves as a marker for poverty, as it reflects the socioeconomic status of families in a given school or district. A higher FRPL rate typically indicates a higher concentration of low-income families, suggesting that the school or district may face additional challenges in providing adequate resources and support for student success.

Student/Teacher Ratio Walter Zimmerman Elementary

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Compare
Year # Students Full-time Teachers Student/Teacher ratio % Free/Discounted Lunch
1988 705 24.0 29.3 n/a
1989 700 25.0 28.0 n/a
1990 763 27.0 28.2 n/a
1991 763 33.0 23.1 n/a
1992 747 33.5 22.2 58.2
1993 721 29.0 24.9 60.7
1994 720 27.5 26.2 65.8
1995 760 28.5 26.7 73.6
1996 760 28.5 26.7 73.6
1997 772 34.0 22.7 74.2
1998 776 38.0 20.4 77.2
1999 825 41.0 20.1 84.9
2000 839 40.5 20.7 82.9
2001 882 42.3 20.9 77.8
2002 870 40.6 21.4 67.5
2003 870 40.6 21.4 67.5
2004 898 41.6 21.6 76.1
2005 933 42.5 22.0 75.6
2006 902 44.5 20.3 70
2007 816 42.0 19.4 86.8
2008 817 44.0 18.6 90
2009 813 39.5 19.1 89.7
2010 814 39.0 20.8 88.8
2011 791 n/a n/a 91.4
2012 766 33.0 23.2 n/a
2013 743 33.0 22.5 93.7
2014 776 32.0 24.2 95.5
2015 753 30.0 25.1 95.1
2016 755 30.0 25.1 94.2
2017 716 30.0 23.8 92.6
2018 685 27.0 25.3 94.3
2019 632 26.0 24.3 82.1
2020 603 n/a n/a 94
2021 578 23.1 24.9 92.9
2022 558 23.0 24.2 74.6
2023 559 23.0 24.3 95
2024 526 23.0 22.8 93.3

Data source: National Center for Education Statistics, U.S. Dept of Education.

About Student-Teacher Ratio

Student/teacher ratio is calculated by dividing the total number of students by the total number of full-time equivalent teachers. Please note that a smaller student/teacher ratio does not necessarily translate to smaller class size. In some instances, schools hire teachers part time, and some teachers are hired for specialized instruction with very small class sizes. These and other factors contribute to the student/teacher ratio. Note: For private schools, Student/teacher ratio may not include Pre-Kindergarten.

Kindergarten Immunization Rates

Walter Zimmerman Elementary

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Compare
YearCompletely ImmunizedReligious ExemptionMedical ExemptionConditionalPolioHepatitis BVaricellaDTPMMR
201293.0%0.0%0.0%7.0%96.0%99.0%99.0%96.0%95.0%
201399.0%0.0%0.0%1.0%99.0%100.0%100.0%99.0%100.0%
201494.0%0.0%0.0%6.0%94.0%99.0%99.0%94.0%97.0%
201592.0%0.0%2.0%6.0%95.0%98.0%97.0%92.0%92.0%
201698.0%0.0%0.0%2.0%98.0%99.0%99.0%98.0%98.0%
201798.0%0.0%0.0%2.0%98.0%≥99.0%≥99.0%98.0%98.0%
2018≥98.0%≤2.0%≤2.0%≤2.0%≥98.0%≥98.0%≥98.0%≥98.0%≥98.0%
201996.0%0.0%4.0%≥98.0%≥98.0%≥98.0%≥98.0%≥98.0%
202189.7%0.0%0.0%94.1%95.6%94.1%94.1%89.7%
202296.5%0.0%0.0%

Data source: California Department of Public Health
Finances

Per Pupil Expenditures for Walter Zimmerman Elementary

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YearTotal Expenditures Per Pupil
2018 $6,339

Data source: California Department of Education
Pre and Post Pandemic Data

Impact of COVID-19 on Walter Zimmerman Elementary

The coronavirus has had a profound impact on education in America. Learning shifted online overnight, attendance numbers dwindled, and enrollment decreased. SchoolDigger.com is making it easier for you to better assess how COVID-19 has impacted your school. Through the collection of pre-pandemic (2019) and current data, SchoolDigger.com is sharing test scores, enrollment numbers and school demographics from schools across the country – and we make it easy to see how impacted schools compare locally and statewide.

Rankings

Rank
Pre-pandemic (2018-2019)
Rank
Post pandemic (2022-2023)
Change (%)
Ranks 3573rd of 5789 Elementary schoolsRanks 4220th of 5874 Elementary schools
 10.1%

Test Scores

% proficient
Pre-pandemic (2018-2019)
% proficient
Post pandemic (2022-2023)
Change (%)
3rd Grade English Language Arts/Literacy (Walter Zimmerman Elementary)48.425
 23.4%
   3rd Grade English Language Arts/Literacy (Colton Joint Unified)40.327.9
 12.4%
   3rd Grade English Language Arts/Literacy (California)48.543
 5.6%
3rd Grade Mathematics (Walter Zimmerman Elementary)4426
 18%
   3rd Grade Mathematics (Colton Joint Unified)41.332
 9.3%
   3rd Grade Mathematics (California)50.245.1
 5.1%
4th Grade English Language Arts/Literacy (Walter Zimmerman Elementary)33.346.3
 12.9%
   4th Grade English Language Arts/Literacy (Colton Joint Unified)39.831.4
 8.4%
   4th Grade English Language Arts/Literacy (California)49.543.7
 5.7%
4th Grade Mathematics (Walter Zimmerman Elementary)26.325
 1.3%
   4th Grade Mathematics (Colton Joint Unified)31.526.7
 4.8%
   4th Grade Mathematics (California)44.940.8
 4.1%
5th Grade English Language Arts/Literacy (Walter Zimmerman Elementary)4231.9
 10.1%
   5th Grade English Language Arts/Literacy (Colton Joint Unified)41.729.9
 11.8%
   5th Grade English Language Arts/Literacy (California)51.746.7
 5%
5th Grade Mathematics (Walter Zimmerman Elementary)26.115.8
 10.3%
   5th Grade Mathematics (Colton Joint Unified)23.315
 8.3%
   5th Grade Mathematics (California)3833.4
 4.6%
5th Grade Science (Walter Zimmerman Elementary)17.712.6
 5%
   5th Grade Science (Colton Joint Unified)20.714.5
 6.2%
   5th Grade Science (California)31.731.9
 0.1%
6th Grade English Language Arts/Literacy (Walter Zimmerman Elementary)47.233.7
 13.5%
   6th Grade English Language Arts/Literacy (Colton Joint Unified)38.634.7
 3.8%
   6th Grade English Language Arts/Literacy (California)48.544.2
 4.3%
6th Grade Mathematics (Walter Zimmerman Elementary)27.416.5
 10.9%
   6th Grade Mathematics (Colton Joint Unified)25.722.6
 3.1%
   6th Grade Mathematics (California)38.533.2
 5.3%

Student Body

Number of students
Pre-pandemic (2018-2019)
Number of students
Post pandemic (2022-2023)
Change (%)
Total Students632559
 11.6%
African American42
 50%
American Indian00
Asian22
Hispanic611548
 10.3%
Pacific Islander42
 50%
White105
 50%
Two or More Races10
 100%
% Free/Discounted Lunch Recipients82.1%95%
 12.9%


Schools Near Walter Zimmerman Elementary









Frequently Asked Questions about Walter Zimmerman Elementary

Walter Zimmerman Elementary ranks 4206th of 5862 California elementary schools. SchoolDigger rates this school 1 star out of 5.

Students who attend Walter Zimmerman Elementary usually go on to attend:

Middle : Ruth O. Harris Middle
High : Bloomington High

Students at Walter Zimmerman Elementary are 98% Hispanic.

In the 2023-24 school year, 526 students attended Walter Zimmerman Elementary.


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SchoolDigger data sources: National Center for Education Statistics, U.S. Department of Education, the U.S. Census Bureau and the California Department of Education.

IMPORTANT DISCLAIMERS: Not all boundaries are included. We make every effort to ensure that boundaries are up-to-date. But it's important to note that these are approximations and are for general informational purposes only. To verify legal descriptions of boundaries or school locations, contact your local tax assessor's office and/or school district.





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