- Enrollment
- 1,794
- Students per teacher
- 16.9:1
- Resource Index
- 37/100
Elementary school (grades K-5) · Bloomington, CA
Walter Zimmerman Elementary
Federal NCES profile for Walter Zimmerman Elementary, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 20/100.
2024-25 NCES dataElementary school (grades K-5)NCES 060939000959
👥 S:T ratio 11
🌟 Gifted program 70
🎓 Counselors 0
📋 Attendance 0
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Walter Zimmerman Elementary earns 20/100 on the Resource Investment Index, with class sizes near the California median. It is also less racially and ethnically mixed than most California schools.
- #2 of 5
- elementary schools in Bloomington · Resource Index
- 20
- Resource Index · Lower
- 22.3:1
- students per teacher
- 83.2%
- free-lunch eligible
Walter Zimmerman Elementary has class sizes near the California median. Computed live against every California school reporting to NCES.
By Resource Investment Index, Walter Zimmerman Elementary ranks #2 of 5 elementary schools in Bloomington, CA.
School address
District: Colton Joint Unified · California
NCES ID 060939000959 Verify on NCES CCD record →
CCD year-over-year · 2022-23 → 2023-24
-33 students YoY
Walter Zimmerman Elementary shrank from 559 students in 2022-23 to 526 in 2023-24 (-5.9%).
Teacher FTE held 23.0 → 23.0 across the same CCD years.
Source: NCES Common Core of Data public-school universe (2022-23, 2023-24).
Shrinking CCD campus
-33 students YoY 060939000959 · Bloomington, CA Elementary · MID · TRAD
512 enr · 22.3:1 · 83.2% lunch · RII 20
Nearest enrollment peer: Bloomington High (1,794 students)
Walter Zimmerman Elementary shrank from 559 students in 2022-23 to 526 in 2023-24 (-5.9%). Teacher FTE held 23.0 → 23.0 across the same CCD years. Read with this school → · District book → · California schools → · Find another →
Walter Zimmerman Elementary in the enrollment neighbourhood
Fall enrollment among this campus and nearest district peers
- Bloomington Hi
Bloomington High
1,794 students
- Colton High
Colton High
1,729 students
- Grand Terrace
Grand Terrace High Sch at the Ray Abril Jr. Edal Complex
1,647 students
- Colton Middle
Colton Middle
870 students
- Terrace Hills
Terrace Hills Middle
852 students
- This school 512
Walter Zimmerman Elementary
512 students
What this shows Walter Zimmerman Elementary reports 512 students on the CCD universe file.
How Walter Zimmerman Elementary compares
Walter Zimmerman Elementary is a shrinking campus on CCD: ratios and free-lunch share vs California and U.S. means.
| Metric | This school | vs California | California avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 22.3:1 | ▲ 4% | 21.5:1 | 15.7:1 |
| Free-lunch eligible | 83.2% | ▲ 50% | 55.5% | 51.7% |
| Enrollment | 512 | top 43% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
22.3:1
Leaner classes than 10% of US schools, heavier class loads than most.
512
Bigger than 63% of US schools by enrollment, mid-sized for the country.
Equity indicators methodology
Economic need
83.2%
free-lunch eligible
- 50% above the California average of 55.5%
Well above the 40% Title I schoolwide threshold, among the highest-need profiles in the state; federal funds support the whole school, not individual students.
Staffing depth
22.3:1
students per teacher
- 4% above state mean
Top 56% in California - lower ratio than 44% of state schools
Above 20:1, running heavier than the typical U.S. public school; staffing is comparatively stretched.
Engagement
59.0%
chronically absent (missed 10%+ of school days)
At or above 20%, the commonly used threshold for "high" chronic absenteeism, signaling significant barriers to regular attendance.
Funding equity
$18,922
per pupil, district-wide
- above California avg of $18,665
Somewhat above the U.S. public-school average, reflecting higher local or state investment per enrolled student.
Support staff
Counselors1.0 FTE
Per 512 students, the combined health-and-guidance staffing load for this school.
Discipline context
4
in-school suspensions + 1 out-of-school
Suspension rate: 0.8 per 100 students. Combined in-school and out-of-school rate: 1.0 per 100 students. Reported via the Civil Rights Data Collection.
Student demographics
Hispanic or Latino 98.0%
White 0.8%
African American 0.6%
Two or More 0.4%
Asian 0.2%
Largest group: Hispanic or Latino at 98.0% of enrollment.
Student-body diversity index 3.9/100
Simpson diversity index - at 3.9, Walter Zimmerman Elementary is less mixed than the California school average of 46.0.
Programs
Gifted & talented Yes
District finance for Colton Joint Unified reports $18,922 per pupil (NCES F-33) - open the district page for the full revenue mix.
How Walter Zimmerman Elementary Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Bloomington High | Larger | Lower economic need | Lower S:T ratio |
| Colton High | Larger | Lower economic need | Lower S:T ratio |
| Grand Terrace High Sch at the Ray Abril Jr. Edal Complex | Larger | Lower economic need | Lower S:T ratio |
| Colton Middle | Larger | Similar economic need | Similar S:T ratio |
| Terrace Hills Middle | Larger | Lower economic need | Lower S:T ratio |
Comparisons are relative to Walter Zimmerman Elementary's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 1,729
- Students per teacher
- 18.6:1
- Resource Index
- 34/100
- Enrollment
- 1,647
- Students per teacher
- 19.2:1
- Resource Index
- 35/100
- Enrollment
- 870
- Students per teacher
- 22.9:1
- Resource Index
- 35/100
- Enrollment
- 852
- Students per teacher
- 20.8:1
- Resource Index
- 33/100
Similar elementary schools in Bloomington
4 comparable elementary schools (grades K-5) serving the same city.
Ruth Grimes Elementary
Standard public school
606 students 20.9:1 students per teacher
Crestmore Elementary
Standard public school
586 students 22.5:1 students per teacher
Gerald a. Smith Elementary
Standard public school
565 students 22.6:1 students per teacher
Mary B. Lewis Elementary
Standard public school
548 students 22.8:1 students per teacher
Nationwide elementary schools with similar size or staffing
Out-of-state peers matched by enrollment and by student-teacher ratio, not the same-city or same-district lists above.
Similar enrollment (~512 students)
Frequently asked questions about Walter Zimmerman Elementary
How many students attend Walter Zimmerman Elementary?
Walter Zimmerman Elementary has 512 students enrolled. It is an elementary school in Bloomington, CA. CCD year-over-year: 559 (2022-23) → 526 (2023-24), down 33.
What is the student-teacher ratio at Walter Zimmerman Elementary?
The student-teacher ratio at Walter Zimmerman Elementary is 22.3:1, which is 4% higher than the California average of 21.5:1 and 42% higher than the national average of 15.7:1.
What percentage of students receive free lunch at Walter Zimmerman Elementary?
83.2% of students at Walter Zimmerman Elementary are eligible for free lunch, compared to the California average of 55.5%.
What is the racial and ethnic makeup of Walter Zimmerman Elementary?
The largest demographic group at Walter Zimmerman Elementary is Hispanic or Latino at 98.0% of enrollment, in Bloomington, CA.
What is the Resource Investment Index for Walter Zimmerman Elementary?
Walter Zimmerman Elementary has a Resource Investment Index of 20/100 (lower reported resources relative to schools nationally) based on 4 factors: student-teacher ratio, gifted-program reporting, counselor availability, chronic absenteeism. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Walter Zimmerman Elementary rank among elementary schools in Bloomington?
By Resource Investment Index, Walter Zimmerman Elementary ranks #2 of 5 elementary schools in Bloomington, CA. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all elementary schools in Bloomington on the city page.
What other schools are in Colton Joint Unified?
Besides Walter Zimmerman Elementary, Colton Joint Unified also operates Bloomington High (1,794 students), Colton High (1,729 students), and Grand Terrace High Sch at the Ray Abril Jr. Edal Complex (1,647 students). See the Colton Joint Unified district page for the complete list.