1
What's the one class at Walter Zimmerman Elementary every student should take?
Community prompt from u/allk12. Replies below.
Enrollment
512
Elementary
DISTRICT 549 · STATE 465
SCHOOL COMMUNITY·COLTON JOINT UNIFIED·NCES 060939000959
Walter Zimmerman Elementary
11050 Linden Ave., Bloomington, CA 92316 · (909) 580-5019 · San Bernardino County
GRADES KG–06ELEMENTARY21-SUBURBTITLE IREGULAR SCHOOL512 STUDENTS
C-
allk12 Grade
Scored higher than 24% of California public elementary schools
- C-Test scores Share of students meeting the state standard in reading, math, and other tested subjects, 2023-24 and 2024-25.
- B-Beats expectations How far test scores land above or below what the share of low-income students predicts for a school in this state.
- C-Three-year trend Change in reading and math proficiency over the last three test years.
Grades compare a school only with schools in the same state, because every state gives its own test. How grades work · Top-graded California public elementary schools
Student : Teacher
22.3:1
23 FTE teachers
DISTRICT 22.8:1 · STATE 22.3:1
Free / Reduced Lunch
92%
471 students
DISTRICT 85% · STATE 65%
Community
6
0 members
Enrollment and student:teacher ratio compared against other elementary schools. Free/Reduced Lunch and demographics compared against all schools.
Enrollment by grade, 2024-25
| Grade | Students | Share |
|---|---|---|
| Kindergarten | 106 | 21% |
| Grade 1 | 55 | 11% |
| Grade 2 | 66 | 13% |
| Grade 3 | 62 | 12% |
| Grade 4 | 82 | 16% |
| Grade 5 | 68 | 13% |
| Grade 6 | 73 | 14% |
This year's kindergarten class (106) is 45% larger than its 6th grade class (73).
Student demographics
4%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 22% · STATE 62% · US 70%
Student head counts by race/ethnicity from federal NCES enrollment data. District, state, and US figures are each group's share of all public school students in that area (US excludes territories). Very small groups may be suppressed in the source, so categories do not always sum exactly to total enrollment.
Gender split
Test scores
CAASPP 2024-25 . % met or exceeded standardEnglish Language Arts
31.0%
CA avg 49.1% . -0.0pp since 2014
Math
18.4%
CA avg 37.7% . +7.4pp since 2014
What this means: On the CAASPP, California's statewide test, about 31 of every 100 students at this school read and write at grade level and about 18 of 100 do math at grade level. Across all California schools, those numbers are about 49 and 38. Reading and writing scores have held steady since 2014, while math scores are up about 7 points.
Performance levels, 2024-25
| Subject | Standard Exceeded | Standard Met | Standard Nearly Met | Standard Not Met |
|---|---|---|---|---|
| English Language Arts | 10.6% | 20.4% | 25.0% | 44.0% |
| Math | 3.1% | 15.3% | 25.0% | 56.6% |
Share of tested students at each CAASPP level. Each student counts in one level, so a row adds to about 100%.
CAASPP results by year
| School year | English Language Arts | Math |
|---|---|---|
| 2024-25 | 31.0% | 18.4% |
| 2023-24 | 34.9% | 18.7% |
| 2022-23 | 33.7% | 20.2% |
| 2021-22 | 37.6% | 16.1% |
| 2018-19 | 43.0% | 31.0% |
| 2017-18 | 39.3% | 25.6% |
| 2016-17 | 37.5% | 24.5% |
| 2015-16 | 37.0% | 17.0% |
| 2014-15 | 31.0% | 11.0% |
% met or exceeded standard, all students and all tested grades.
Source: CAASPP. All students, all grades. See all years and grades →
BeatsExpectations
Demographically-adjusted score · methodologyTier
AS EXPECTED
Performing as predicted given the school's student profile
Actual proficiency
25.9%
composite math + reading, all grades
Predicted
25.6%
based on CA schools with similar FRL share
Beats by
+0.2pp
above demographic expectation
What this means: About 26% of students here test proficient in math and reading, compared with the roughly 26% typical for California schools with a similar share of low-income students. BeatsExpectations measures results against demographically similar schools rather than by raw scores, and this school falls within the typical range, neither among California's top nor bottom 10%.
BeatsExpectations runs a per-state regression of proficiency on free/reduced-lunch share, then scores each school by residual. How this is calculated →
Schools most like Walter Zimmerman Elementary
Walter Zimmerman Elementary's state test result (25.9% proficient) is higher than 2 of the 5 schools below with a result.
| School | Students | Low-income | Proficient |
|---|---|---|---|
| Walter Zimmerman Elementary this school | 512 | 92.0% | 25.9% |
| Woodlawn Avenue Elementary Bell | 523 | 92.2% | 33.0% |
| Thurgood Marshall Elementary Lynwood | 511 | 93.2% | 27.9% |
| Telfair Avenue Elementary Pacoima | 534 | 92.3% | 30.7% |
| San Vicente Elementary Soledad | 501 | 92.8% | 17.6% |
| John Kelley Elementary Thermal | 505 | 93.3% | 23.1% |
Matched among California elementary schools on enrollment, the share of students from low-income families (eligible for free or reduced-price lunch), and racial and ethnic makeup. Proficient is the average share of students meeting the state standard across all of the school's state tests in 2023-24 and 2024-25, the same combined score our test-score rankings use. Online schools and schools serving specialized populations are not matched.
Where Walter Zimmerman Elementary ranks
Among elementary schools| Measure | This school | In California | In San Bernardino County |
|---|---|---|---|
| State test proficiency ranked highest first | 25.9% | #3,981 of 5,151 | #202 of 318 |
| Math proficiency ranked highest first | 18.4% | #4,449 of 5,172 ▼ 134 | #241 of 321 ▼ 14 |
| Reading proficiency ranked highest first | 31.0% | #3,880 of 5,172 ▼ 640 | #202 of 321 ▼ 48 |
| 3-year test score change ranked biggest drop first | -2.2pp | #1,147 of 5,116 | #45 of 318 |
| Enrollment ranked largest first | 512 | #2,276 of 5,915 | #189 of 340 |
| Students per teacher ranked fewest first | 22.3:1 | #2,387 of 5,352 | #117 of 328 |
| Diversity index ranked most diverse first | 3.9% | #5,248 of 5,354 | #328 of 328 |
| Free and reduced lunch ranked highest share first | 92.0% | #837 of 5,625 | #52 of 331 |
| Enrollment change since 2017-18 ranked steepest decline first | -25.3% | #876 of 3,837 | #42 of 246 |
Ranked against other public elementary schools. Online schools are left out of every list, and test-score lists leave out schools that serve specialized populations. Each rank links to the full list. Arrows under a test-score rank show places moved since the prior test year, among schools tested both years.
4-year change
SY 2020-21 vs SY 2024-25Enrollment
512
-66 (-11%) vs 2020
-33% since 1990-91, when it was 763
Student : Teacher
22.3:1
was 25.1:1
Source: NCES Common Core of Data
Enrollment and staffing by year
| School year | Students | Teachers (FTE) | Students per teacher | Free and reduced lunch |
|---|---|---|---|---|
| 2024-25 | 512 | 23 | 22.3:1 | 92% (471) |
| 2023-24 | 526 | 23 | 22.9:1 | 93% (491) |
| 2022-23 | 559 | 23 | 24.3:1 | 95% (531) |
| 2020-21 | 578 | 23 | 25.1:1 | 93% (537) |
| 2017-18 | 685 | 27 | 25.4:1 | 94% (646) |
| 2015-16 | 755 | 30 | 25.2:1 | 94% (711) |
| 2010-11 | 791 | N/A | N/A | 91% (723) |
| 2000-01 | 882 | 42 | 21.0:1 | 78% (686) |
| 1990-91 | 763 | 33 | 23.1:1 | N/A |
Source: NCES Common Core of Data. Rows are the federal collections on file for Walter Zimmerman Elementary.
Since 2017-18: students down 25% (685 to 512); teachers down 15% (27 to 23).
About Walter Zimmerman Elementary
Walter Zimmerman Elementary is a medium-sized elementary school serving families in Bloomington, California. The school's enrollment of 512 students covers kindergarten through 6.
The 27 schools in Colton Joint Unified enroll 18,397 students altogether, Walter Zimmerman Elementary among them.
The large majority of students at Walter Zimmerman Elementary, 98%, are Hispanic. The Hispanic share of the county population is lower, at 55%. Walter Zimmerman Elementary has a diversity index of 4%, compared with 70% for all US public school students.
Walter Zimmerman Elementary operates with 23 full-time-equivalent teachers, a ratio of about 22.3:1. Elementary schools in California have a similar average ratio of 22.3:1. About 92% of students at the school meet free or reduced-price lunch income limits. The gap from the 74% average for public schools in San Bernardino County is 18 points.
allk12 grades Walter Zimmerman Elementary a C-. The grade compares the school only with California public elementary schools, because each state gives its own test.
Walter Zimmerman Elementary scores 25.9% on state tests, averaged across results. The predicted figure, based on its student poverty level, is 25.6%.
Census estimates describe San Bernardino County this way: median household income is about $85,478, the share of adults with a bachelor's degree or higher is 23%, and roughly 11% of residents are in poverty. The public schools of San Bernardino County number 583 and enroll about 393,648.
The next-closest public school is Crestmore Elementary, about 0.6 miles away. In all, at least 8 other public schools sit within five miles of Walter Zimmerman Elementary. Among its closest neighbors with test data, Walter Zimmerman Elementary is 5th of 7 on proficiency.
NCES lists the school's locale as Suburb: Large. That means it sits in a suburban area outside a principal city, within an urbanized area with a population of 250,000 or more.
The number of students declined from 578 to 512 over 4 years. From 2020-21 to 2024-25, the ratio fell from 25.1:1 to 22.3:1.
Threads on this page can be about school events, clubs, and volunteer needs. Anyone with firsthand experience at this school can post or comment.
San Bernardino County at a glance
View full county profilePopulation
2,197,104
Census ACS
Median income
$85,478
Household, ACS
Bachelor's+
23%
Adults 25+
Poverty rate
11%
Below federal line
Schools in county
583
393,648 students
Quick facts
Related schools
Other schools in Colton Joint Unified
- Bloomington HighHigh · 1,794 students
- Colton HighHigh · 1,729 students
- Grand Terrace High Sch at the Ray Abril Jr. Edal ComplexHigh · 1,647 students
- Colton MiddleMiddle · 870 students
- Terrace Hills MiddleMiddle · 852 students
- Joe BacaMiddle · 705 students
Other schools in Bloomington
- Bloomington HighHigh · 1,794 students
- Joe BacaMiddle · 705 students
- Ruth Grimes ElementaryElementary · 606 students
- Crestmore ElementaryElementary · 586 students
- Gerald A. Smith ElementaryElementary · 565 students
- Ruth O. Harris MiddleMiddle · 562 students
Nearby schools
- Crestmore Elementary0.6 mi · 586
- Bloomington High0.8 mi · 1,794
- Slover Mountain High (Continuation)0.9 mi · 231
- Ruth O. Harris Middle1.0 mi · 562
- Sycamore Hills Elementary1.4 mi · 565
- Ruth Grimes Elementary1.6 mi · 606
Frequently asked questions
About Walter Zimmerman ElementaryHow large is Walter Zimmerman Elementary?
Walter Zimmerman Elementary enrolls approximately 512 students in grades KG-06.
What grades does Walter Zimmerman Elementary serve?
Walter Zimmerman Elementary serves grades KG-06.
What is the student-teacher ratio at Walter Zimmerman Elementary?
The student-to-teacher ratio at Walter Zimmerman Elementary is approximately 22.3:1 (23 FTE teachers).
What is the racial breakdown of students at Walter Zimmerman Elementary?
At Walter Zimmerman Elementary, the student body is approximately 1% White, 98% Hispanic, 1% Black, 0% Asian, 0% Two or more.
Who oversees Walter Zimmerman Elementary?
Walter Zimmerman Elementary is overseen by Colton Joint Unified in San Bernardino County.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.