- Enrollment
- 2,623
- Students per teacher
- 22.2:1
- Resource Index
- 39/100
Middle school (grades 6-8) · Rialto, CA
Ben F. Kolb Middle
Federal NCES profile for Ben F. Kolb Middle, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 35/100.
2024-25 NCES dataMiddle school (grades 6-8)NCES 063237004994
👥 S:T ratio 0
🌟 Gifted program 70
🎓 Counselors 39
📋 Attendance 31
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Ben F. Kolb Middle earns 35/100 on the Resource Investment Index, with class sizes larger than 82% of California schools.
- #2 of 4
- middle schools in Rialto · Resource Index
- 35
- Resource Index · Typical
- 25.5:1
- large classes for California
- 68.0%
- free-lunch eligible
Ben F. Kolb Middle has class sizes larger than 82% of California schools. Computed live against every California school reporting to NCES.
By Resource Investment Index, Ben F. Kolb Middle ranks #2 of 4 middle schools in Rialto, CA.
School address
District: Rialto Unified · California
NCES ID 063237004994 Verify on NCES CCD record →
CCD year-over-year · 2022-23 → 2023-24
-3 students YoY
Ben F. Kolb Middle held near 898 students from 2022-23 to 2023-24 (-3 headcount).
Teacher FTE added 36.1 → 37.0 across the same CCD years.
Source: NCES Common Core of Data public-school universe (2022-23, 2023-24).
Steady CCD campus
-3 students YoY 063237004994 · Rialto, CA Middle · MID · TRAD
917 enr · 25.5:1 · 68.0% lunch · RII 35
Nearest enrollment peer: Rialto High (2,623 students)
Ben F. Kolb Middle held near 898 students from 2022-23 to 2023-24 (-3 headcount). Teacher FTE added 36.1 → 37.0 across the same CCD years. Read with this school → · District book → · California schools → · Find another →
Ben F. Kolb Middle in the enrollment neighbourhood
Fall enrollment among this campus and nearest district peers
- Rialto High
Rialto High
2,623 students
- Eisenhower Hig
Eisenhower High
2,075 students
- Wilmer Amina C
Wilmer Amina Carter High
1,951 students
- William G. Jeh
William G. Jehue Middle
1,444 students
- Rialto Middle 1,017
Rialto Middle
1,017 students
- This school 917
Ben F. Kolb Middle
917 students
What this shows Ben F. Kolb Middle reports 917 students on the CCD universe file.
How Ben F. Kolb Middle compares
Ben F. Kolb Middle held steady on CCD headcount: ratios and free-lunch share vs California and U.S. means.
| Metric | This school | vs California | California avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 25.5:1 | ▲ 19% | 21.5:1 | 15.7:1 |
| Free-lunch eligible | 68.0% | ▲ 23% | 55.5% | 51.7% |
| Enrollment | 917 | top 13% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
25.5:1
Leaner classes than 4% of US schools, heavier class loads than most.
917
Bigger than 89% of US schools by enrollment, a large campus nationally.
Equity indicators methodology
Economic need
68.0%
free-lunch eligible
- 23% above the California average of 55.5%
Above the 40% Title I schoolwide threshold; federal funds support the whole school, not individual students.
Staffing depth
25.5:1
students per teacher
- 19% above state mean
Top 82% in California - lower ratio than 18% of state schools
Well above 20:1, one of the more stretched staffing loads nationally relative to enrollment.
Engagement
27.7%
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
$18,123
per pupil, district-wide
- below California avg of $18,665
Close to the U.S. public-school average per-pupil spend.
Support staff
Counselors3.0 FTE
Per 306 students, the combined health-and-guidance staffing load for this school.
Discipline context
14
in-school suspensions + 106 out-of-school
Suspension rate: 1.5 per 100 students. Combined in-school and out-of-school rate: 13.1 per 100 students. Reported via the Civil Rights Data Collection. Includes 2 expulsions.
Student demographics
Hispanic or Latino 81.1%
African American 11.6%
White 2.9%
Two or More 2.6%
Asian 0.9%
Native Hawaiian / Pacific Islander 0.7%
American Indian / Alaska Native 0.2%
Largest group: Hispanic or Latino at 81.1% of enrollment.
Student-body diversity index 32.7/100
Simpson diversity index - at 32.7, Ben F. Kolb Middle is less mixed than the California school average of 46.0.
Programs
Gifted & talented Yes
District finance for Rialto Unified reports $18,123 per pupil (NCES F-33) - open the district page for the full revenue mix.
How Ben F. Kolb Middle Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Rialto High | Larger | Similar economic need | Lower S:T ratio |
| Eisenhower High | Larger | Similar economic need | Lower S:T ratio |
| Wilmer Amina Carter High | Larger | Similar economic need | Lower S:T ratio |
| William G. Jehue Middle | Larger | Similar economic need | Similar S:T ratio |
| Rialto Middle | Similar size | Similar economic need | Lower S:T ratio |
Comparisons are relative to Ben F. Kolb Middle's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 2,075
- Students per teacher
- 20.8:1
- Resource Index
- 32/100
- Enrollment
- 1,951
- Students per teacher
- 21:1
- Resource Index
- 33/100
- Enrollment
- 1,444
- Students per teacher
- 25.8:1
- Resource Index
- 23/100
- Enrollment
- 1,017
- Students per teacher
- 23.1:1
- Resource Index
- 27/100
Similar middle schools in Rialto
3 comparable middle schools (grades 6-8) serving the same city.
Nationwide middle 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 (~917 students)
Similar student-teacher ratio (~25.5:1)
Frequently asked questions about Ben F. Kolb Middle
How many students attend Ben F. Kolb Middle?
Ben F. Kolb Middle has 917 students enrolled. It is a middle school in Rialto, CA. CCD year-over-year: 901 (2022-23) → 898 (2023-24), nearly flat (-3).
What is the student-teacher ratio at Ben F. Kolb Middle?
The student-teacher ratio at Ben F. Kolb Middle is 25.5:1, which is 19% higher than the California average of 21.5:1 and 62% higher than the national average of 15.7:1.
What percentage of students receive free lunch at Ben F. Kolb Middle?
68.0% of students at Ben F. Kolb Middle are eligible for free lunch, compared to the California average of 55.5%.
What is the racial and ethnic makeup of Ben F. Kolb Middle?
The largest demographic group at Ben F. Kolb Middle is Hispanic or Latino at 81.1% of enrollment, in Rialto, CA.
What is the Resource Investment Index for Ben F. Kolb Middle?
Ben F. Kolb Middle has a Resource Investment Index of 35/100 (typical 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 Ben F. Kolb Middle rank among middle schools in Rialto?
By Resource Investment Index, Ben F. Kolb Middle ranks #2 of 4 middle schools in Rialto, CA. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all middle schools in Rialto on the city page.
What other schools are in Rialto Unified?
Besides Ben F. Kolb Middle, Rialto Unified also operates Rialto High (2,623 students), Eisenhower High (2,075 students), and Wilmer Amina Carter High (1,951 students). See the Rialto Unified district page for the complete list.