The bulletin board for America's public schools. Parents, teachers, students, and staff. One community per school.
Schools›California›Imperial
SCHOOL COMMUNITY·IMPERIAL UNIFIED·NCES 061821002242

Imperial Ave. Holbrook High

322 North Imperial Ave., Imperial, CA 92251 · (760) 355-3207 · Imperial County
GRADES 09–12HIGH23-SUBURBTITLE IALTERNATIVE EDUCATION SCHOOL28 STUDENTS
Enrollment
28
High
DISTRICT 734 · STATE 838
Student : Teacher
11.1:1
3 FTE teachers
DISTRICT 17.1:1 · STATE 18.2:1
Free / Reduced Lunch
61%
17 students
DISTRICT 58% · STATE 65%
Community
0
0 members
Enrollment and student:teacher ratio compared against other high schools. Free/Reduced Lunch and demographics compared against all schools.
Enrollment by grade
Grade 10
6
Grade 11
5
Grade 12
17
Student demographics
White
311%
DISTRICT 7% · STATE 20%
Hispanic
2589%
DISTRICT 91% · STATE 56%
Student head counts by race/ethnicity from federal NCES enrollment data. Very small groups may be suppressed in the source, so categories do not always sum exactly to total enrollment.
Gender split
Male
1761%
Female
1139%

Discussions

HotNewTop
+ POST
QUIET COMMUNITY
Be the first to start a discussion at Imperial Ave. Holbrook High.
START A DISCUSSION
Recent discussions in Imperial Unified

Test scores

CAASPP 2023-24 . % met or exceeded standard
English Language Arts
18.8%
own-school result
Math
5.6%
own-school result
State assessment results for this school reflect a specialized student population. The figures above are the school's own reported scores; they are not directly comparable to state averages or to general-enrollment schools, so the usual state-average comparison line is suppressed here.
Source: CAASPP. All students, all grades. See all years and grades →

BeatsExpectations

Not computed for this school
BeatsExpectations is not computed for specialized-population schools (schools for the deaf or blind, therapeutic and behavioral-health placements, juvenile-justice and alternative-education settings, and similar). State ELA/Math proficiency rates are not a comparable metric for these populations, so a demographically-adjusted residual against general-enrollment peers would be misleading. About the methodology →

7-year change

SY 2017-18 vs SY 2024-25
Enrollment
28
-18 (-39%) vs 2017
Student : Teacher
11.1:1
was 13.1:1
% White
11%
was 11%
% Hispanic
89%
was 85%
Source: NCES Common Core of Data

About Imperial Ave. Holbrook High

Imperial Ave. Holbrook High, a tiny senior high in Imperial, California, one of the schools within Imperial Unified, teaches 28 students, covering grades 9 through 12. Enrollment runs roughly 97% leaner than the state mean of about 838.

Imperial Unified runs 6 schools in total, collectively educating 4,794 students. Imperial Ave. Holbrook High is one of those campuses.

Demographically, Imperial Ave. Holbrook High logs that the student body is overwhelmingly Hispanic (89%). Beyond that, the school shows 11% White. That composition is broadly in line with Imperial County as a whole.

On the resource side, On paper, Imperial Ave. Holbrook High has 3 full-time-equivalent teachers, translating to a class-load average of around 11.1:1. That figure is tighter than the state norm's 18.2:1 average. Around 61% of the student body qualifies for free or reduced-price meals, which schools and policymakers use as a rough income-mix signal. That share is below Imperial County's rate of about 77%.

In the surrounding community, the surrounding county (Imperial County) logs that median household earnings sit near $57,681, about 16% of the adult population holds a bachelor's degree or above, and roughly 17% of residents live below the federal poverty line. In all, Imperial County runs 76 public schools (combined enrollment of about 36,513 students), of which Imperial Ave. Holbrook High is one.

The closest other public school is Imperial High, roughly 0.3 miles away. Within five miles, there are 8 other public schools.

Geographically, the school is in a commuter-belt area.

Trend over the last 7 years. Imperial Ave. Holbrook High's enrollment has shrank 39% since 2018, when it stood at 46 (now 28). Over the same period, the Hispanic share ticked up from 85% to 89%. Class-load math has fell: from 13.1:1 in 2018 to 11.1:1 in 2025.

On allk12, the page collects discussion, questions, and updates around fundraisers, lost-and-found posts, and report-card season. Posting is open to anyone connected to the school.

Imperial County at a glance

View full county profile
Population
180,202
Census ACS
Median income
$57,681
Household, ACS
Bachelor's+
16%
Adults 25+
Poverty rate
17%
Below federal line
Schools in county
76
36,513 students

Quick facts

School name
Imperial Ave. Holbrook High
District
Imperial Unified
Address
322 North Imperial Ave., Imperial, CA 92251
Phone
(760) 355-3207
County
Imperial County
Level
High
Grade range
09–12
Total enrollment
28
Teachers (FTE)
3
Student–teacher ratio
11.1:1
Free/Reduced lunch
17 (61%)
Locale
23-Suburb: Small
NCES ID
061821002242
Charter school
No
Virtual school
No

Related schools

Other schools in Imperial Unified
Other schools in Imperial
Nearby schools

Frequently asked questions

About Imperial Ave. Holbrook High
How large is Imperial Ave. Holbrook High?
Imperial Ave. Holbrook High enrolls approximately 28 students in grades 09-12.
What grades does Imperial Ave. Holbrook High serve?
Imperial Ave. Holbrook High serves grades 09-12.
How many teachers does Imperial Ave. Holbrook High have?
Imperial Ave. Holbrook High employs 3 FTE teachers, for a student-to-teacher ratio of 11.1:1.
What is the racial breakdown of students at Imperial Ave. Holbrook High?
At Imperial Ave. Holbrook High, the student body is approximately 11% White, 89% Hispanic.
Who oversees Imperial Ave. Holbrook High?
Imperial Ave. Holbrook High is overseen by Imperial Unified in Imperial County.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.
＋ Post