- Enrollment
- 1,439
- Students per teacher
- 24.8:1
- Resource Index
- 26/100
High school (grades 9-12) · Imperial, CA
Imperial Ave. Holbrook High
Federal NCES profile for Imperial Ave. Holbrook High, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 35/100.
2024-25 NCES dataHigh school (grades 9-12)NCES 061821002242
👥 S:T ratio 0
🌟 Gifted program 70
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Imperial Ave. Holbrook High earns 35/100 on the Resource Investment Index, with class sizes larger than 93% of California schools. It is also one of the smallest schools in California.
- #4 of 6
- public schools in Imperial · Resource Index
- 35
- Resource Index · Typical
- 28:1
- large classes for California
- 66.0%
- free-lunch eligible
Imperial Ave. Holbrook High has class sizes larger than 93% of California schools. Computed live against every California school reporting to NCES.
By Resource Investment Index, Imperial Ave. Holbrook High ranks #4 of 6 public schools in Imperial, CA.
School address
District: Imperial Unified · California
NCES ID 061821002242 Verify on NCES CCD record →
CCD year-over-year · 2022-23 → 2023-24
-1 students YoY
Imperial Ave. Holbrook High held near 49 students from 2022-23 to 2023-24 (-1 headcount).
Teacher FTE added 1.5 → 2.0 across the same CCD years.
Source: NCES Common Core of Data public-school universe (2022-23, 2023-24).
Steady CCD campus
-1 students YoY 061821002242 · Imperial, CA High · SMALL · TRAD
28 enr · 28:1 · 66.0% lunch · RII 35
Nearest enrollment peer: Imperial High (1,439 students)
Imperial Ave. Holbrook High held near 49 students from 2022-23 to 2023-24 (-1 headcount). Teacher FTE added 1.5 → 2.0 across the same CCD years. Read with this school → · District book → · California schools → · Find another →
Imperial Ave. Holbrook High in the enrollment neighbourhood
Fall enrollment among this campus and nearest district peers
- Imperial High
Imperial High
1,439 students
- Frank M. Wrigh
Frank M. Wright Middle
1,116 students
- Ben Hulse Elem
Ben Hulse Elementary
838 students
- Imperial Cross
Imperial Cross Elementary
760 students
- T. L. Waggoner
T. L. Waggoner Elementary
613 students
- This school 28
Imperial Ave. Holbrook High
28 students
What this shows Imperial Ave. Holbrook High reports 28 students on the CCD universe file.
How Imperial Ave. Holbrook High compares
Imperial Ave. Holbrook High 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 | 28:1 | ▲ 30% | 21.5:1 | 15.7:1 |
| Free-lunch eligible | 66.0% | ▲ 19% | 55.5% | 51.7% |
| Enrollment | 28 | top 96% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
28:1
Leaner classes than 3% of US schools, heavier class loads than most.
28
Bigger than 3% of US schools by enrollment, a small campus.
Equity indicators methodology
Economic need
66.0%
free-lunch eligible
- 19% 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
28:1
students per teacher
- 30% above state mean
Top 93% in California - lower ratio than 7% of state schools
Well above 20:1, one of the more stretched staffing loads nationally relative to enrollment.
Funding equity
$14,654
per pupil, district-wide
- below California avg of $18,665
Somewhat below the U.S. average per-pupil spend; funding constraints may affect programs, facilities, and staffing.
Support staff
Counselors0.0 FTE
Student-support staffing from the Civil Rights Data Collection.
Discipline context
0
in-school suspensions + 6 out-of-school
Suspension rate: 0.0 per 100 students. Combined in-school and out-of-school rate: 21.4 per 100 students. Reported via the Civil Rights Data Collection.
Student demographics
Hispanic or Latino 89.3%
White 10.7%
Largest group: Hispanic or Latino at 89.3% of enrollment.
Student-body diversity index 19.1/100
Simpson diversity index - at 19.1, Imperial Ave. Holbrook High is less mixed than the California school average of 46.0.
Programs
AP program Not offered
Gifted & talented Yes
District finance for Imperial Unified reports $14,654 per pupil (NCES F-33) - open the district page for the full revenue mix.
How Imperial Ave. Holbrook High Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Imperial High | Larger | Lower economic need | Lower S:T ratio |
| Frank M. Wright Middle | Larger | Lower economic need | Lower S:T ratio |
| Ben Hulse Elementary | Larger | Lower economic need | Lower S:T ratio |
| Imperial Cross Elementary | Larger | Lower economic need | Lower S:T ratio |
| T. L. Waggoner Elementary | Larger | Lower economic need | Lower S:T ratio |
Comparisons are relative to Imperial Ave. Holbrook High's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 1,116
- Students per teacher
- 25.4:1
- Resource Index
- 33/100
- Enrollment
- 838
- Students per teacher
- 24.6:1
- Resource Index
- 39/100
- Enrollment
- 760
- Students per teacher
- 26.2:1
- Resource Index
- 43/100
- Enrollment
- 613
- Students per teacher
- 22.7:1
- Resource Index
- 47/100
Similar high schools in Imperial
1 comparable high schools (grades 9-12) serving the same city.
Nationwide high 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 (~28 students)
Frequently asked questions about Imperial Ave. Holbrook High
How many students attend Imperial Ave. Holbrook High?
Imperial Ave. Holbrook High has 28 students enrolled. It is a high school in Imperial, CA. CCD year-over-year: 50 (2022-23) → 49 (2023-24), nearly flat (-1).
What is the student-teacher ratio at Imperial Ave. Holbrook High?
The student-teacher ratio at Imperial Ave. Holbrook High is 28:1, which is 30% higher than the California average of 21.5:1 and 78% higher than the national average of 15.7:1.
What percentage of students receive free lunch at Imperial Ave. Holbrook High?
66.0% of students at Imperial Ave. Holbrook High are eligible for free lunch, compared to the California average of 55.5%.
What is the racial and ethnic makeup of Imperial Ave. Holbrook High?
The largest demographic group at Imperial Ave. Holbrook High is Hispanic or Latino at 89.3% of enrollment, in Imperial, CA.
What is the Resource Investment Index for Imperial Ave. Holbrook High?
Imperial Ave. Holbrook High has a Resource Investment Index of 35/100 (typical reported resources relative to schools nationally) based on 2 factors: student-teacher ratio, gifted-program reporting. Not a test-score or academic measure (national median ~41/100, see methodology). Limited indicators were available, so the index reflects partial data.
How does Imperial Ave. Holbrook High rank among public schools in Imperial?
By Resource Investment Index, Imperial Ave. Holbrook High ranks #4 of 6 public schools in Imperial, CA. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all public schools in Imperial on the city page.
What other schools are in Imperial Unified?
Besides Imperial Ave. Holbrook High, Imperial Unified also operates Imperial High (1,439 students), Frank M. Wright Middle (1,116 students), and Ben Hulse Elementary (838 students). See the Imperial Unified district page for the complete list.