Serving 28 students in grades 9-12, Imperial Ave. Holbrook High School ranks in the top 50% of all schools in California for overall test scores (math proficiency is top 30%, and reading proficiency is top 50%).
The percentage of students achieving proficiency in math is ≤10% (which is lower than the California state average of 34%). The percentage of students achieving proficiency in reading/language arts is <50% (which is equal to the California state average of 50%).
The student-teacher ratio of 9:1 is lower than the California state level of 21:1.
Minority enrollment is 89% of the student body (majority Hispanic), which is higher than the California state average of 80% (majority Hispanic).
Quick Facts (2026)
- School Type: Alternative school
- Grades: 9-12
- Enrollment: 28 students
- Student-Teacher Ratio: 9:1
- Minority Enrollment: 89%
- Graduation Rate: 40-59% (Btm 50% in CA)
- Math Proficiency: ≤10% (Btm 50%)
- Reading Proficiency: <50% (Top 1%)
- Science Proficiency: <50% (Top 20%)
- Source: National Center for Education Statistics (NCES), CA Dept. of Education
Top Rankings
Imperial Ave. Holbrook High School ranks among the top 20% of public schools in California for:
Category
Attribute
Science Proficiency
Community Size
School Overview
Imperial Ave. Holbrook High School's student population of 28 students has declined by 17% over five school years.
The teacher population of 3 teachers has grown by 50% over five school years.
School Type
Grades Offered
Grades 9-12
Total Students
28 students
Total Classroom Teachers
3 teachers
Year Founded
1905
School Calendar
School Motto
Individualized programs that increase students' academic knowledge, enhance their socialization, and increase the chance that they will graduate from high school.
School Rankings
The diversity score of Imperial Ave. Holbrook High School is 0.20, which is less than the diversity score at state average of 0.63. The school's diversity has stayed relatively flat over five school years.
Math Test Scores (% Proficient)
≤10%
34%
Reading/Language Arts Test Scores (% Proficient)
(17-18)<50%
50%
Science Test Scores (% Proficient)
<50%
29%
Student-Teacher Ratio
9:1
21:1
American Indian
n/a
1%
Asian
n/a
12%
Hispanic
89%
56%
Black
n/a
5%
White
11%
20%
Hawaiian
n/a
n/a
Two or more races
n/a
6%
All Ethnic Groups
Graduation Rate
40-59%
87%
Eligible for Free Lunch
43%
54%
Eligible for Reduced Lunch
18%
8%
School Statewide Testing
School District Name
Imperial Unified School District
Source: National Center for Education Statistics (NCES), CA Dept. of Education
Frequently Asked Questions
What percent of students have achieved state testing proficiency in math and reading?
≤10% of students have achieved math proficiency (compared to the 34% CA state average), while <50% of students have achieved reading proficiency (compared to the 50% CA state average).
What is the graduation rate of Imperial Ave. Holbrook High School?
The graduation rate of Imperial Ave. Holbrook High School is 40-59%, which is lower than the California state average of 87%.
How many students attend Imperial Ave. Holbrook High School?
28 students attend Imperial Ave. Holbrook High School.
What is the racial composition of the student body?
89% of Imperial Ave. Holbrook High School students are Hispanic, and 11% of students are White.
What is the student-teacher ratio of Imperial Ave. Holbrook High School?
Imperial Ave. Holbrook High School has a student ration of 9:1, which is lower than the California state average of 21:1.
What grades does Imperial Ave. Holbrook High School offer ?
Imperial Ave. Holbrook High School offers enrollment in grades 9-12
What school district is Imperial Ave. Holbrook High School part of?
Imperial Ave. Holbrook High School is part of Imperial Unified School District.
School Reviews
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