Imperial Ave. Holbrook High

Summary:

Imperial Ave. Holbrook High is a small public high school in Imperial, California, serving just 50 students in grades 9-12. Despite being part of the Imperial Unified School District, which is ranked 628 out of 1,568 districts in the state, this school consistently struggles with low academic performance, poor graduation rates, and high dropout and chronic absenteeism.

Imperial Ave. Holbrook High ranks in the bottom 20% of California high schools, with a 1-star rating from SchoolDigger indicating very low academic achievement. The school's proficiency rates on standardized tests are shockingly low, with just 18.75% of 11th graders proficient in ELA and 5.56% proficient in Math, compared to 55.73% and 27.9% statewide. Graduation rates have ranged from 35.3% to 63.6% over the past 5 years, far below the state and district averages. Correspondingly, the school has had dropout rates as high as 41.2%, more than double the typical rates.

These challenges stand in stark contrast to the nearby Imperial High School, which ranks in the top 25% of California high schools, has graduation rates over 94%, and proficiency rates 2-3 times higher than Imperial Ave. Holbrook High. The combination of small school size, high poverty rates, and chronic absenteeism likely contribute to the poor performance at Imperial Ave. Holbrook High, but the data suggests there may be room for improvement with targeted interventions and support to address the school's unique needs.

Detail:

Public 9-12

322 North Imperial Ave.
Imperial, CA 92251-1267

(760) 355-3207

District: Imperial Unified

SchoolDigger Rank:
1917^th of 2,323 California High Schools

Student/teacher ratio: 24.7

Number of students: 49

Racial breakdown:

Hispanic:

87.8%

White:

8.2%

African American:

2.0%

Free/discounted lunch recipients: 57.1%

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Performance Trends

Compare Details Imperial Ave. Holbrook High ranks worse than 82.5% of high schools in California. (See more...)

Compare Details In 2024 the calculated Average Standard Score was 11.64. (See more...)

The four-year cohort graduation rate measures the percentage of students at Imperial Ave. Holbrook High who earn a standard high school diploma within four years of starting ninth grade.

The high school dropout rate measures the percentage of students who do not complete their high school education.

Chronic absenteeism in a school refers to a situation where students repeatedly miss school, with the threshold often defined as missing 10% or more of school days for any reason, excused or unexcused.

Student Body

Compare Details Racial makeup is: Hispanic (87.8%), White (8.2%), Asian (2%). (See more...)

Compare Details 57.1% of students are receiving a free or discounted lunch. (See more...)

Teachers

Compare Details The student/teacher ratio at Imperial Ave. Holbrook High is 24.7. (See more...)

Compare Imperial Ave. Holbrook High employs 1.9 full-time teachers.

Schooldigger 2024 Rankings:

Imperial Ave. Holbrook High:

SchoolDigger ranks Imperial Ave. Holbrook High 1917^th of 2323 California public high schools. (See Imperial Ave. Holbrook High in the ranking list.)

High School Test Score Ratings by Student Subgroup:

Low Socio Economic Status students:

Male students:

Hispanic students:

Imperial Unified:

SchoolDigger ranks Imperial Unified 628^th of 1568 California school districts. (See district ranking list.)

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Rank History for Imperial Ave. Holbrook High

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Rank History for all students at Imperial Ave. Holbrook High

Year	Avg Standard Score	Statewide Rank	Total # Ranked High Schools	CA State Percentile
2004	18.64	1332^nd	1653	19.4%
2005	38.32	851^st	1901	55.2%
2006	31.18	1059^th	1968	46.2%
2007	26.48	1251^st	2063	39.4%
2008	44.28	810^th	2117	61.7%
2009	45.34	874^th	2238	60.9%
2010	40.13	1008^th	2281	55.8%
2011	27.05	1408^th	2367	40.5%
2012	30.68	1283^rd	2354	45.5%
2013	34.33	1202^nd	2426	50.5%
2016	26.19	1428^th	2039	30.0%
2017	10.23	1818^th	2021	10.0%
2018	13.03	1663^rd	2017	17.6%
2023	13.68	1879^th	2348	20.0%
2024	11.64	1917^th	2323	17.5%

See the entire list of California High School Rankings!

Rank History for Low Socio Economic Status students at Imperial Ave. Holbrook High

Year	Avg Standard Score	Statewide Rank	Total # Ranked High Schools	CA State Percentile	SchoolDigger Rating
2023	12.83	1876^th	2247	16.5%
2024	12.01	1863^rd	2235	16.6%

See the entire list of Best California High Schools for Low Socio Economic Status Students!

Rank History for Female students at Imperial Ave. Holbrook High

Year	Avg Standard Score	Statewide Rank	Total # Ranked High Schools	CA State Percentile	SchoolDigger Rating
2023	16.97	1663^rd	2118	21.5%

See the entire list of Best California High Schools for Female Students!

Rank History for Male students at Imperial Ave. Holbrook High

Year	Avg Standard Score	Statewide Rank	Total # Ranked High Schools	CA State Percentile	SchoolDigger Rating
2023	12.27	1831^st	2207	17.0%
2024	18.04	1641^st	2172	24.4%

See the entire list of Best California High Schools for Male Students!

Rank History for Hispanic students at Imperial Ave. Holbrook High

Year	Avg Standard Score	Statewide Rank	Total # Ranked High Schools	CA State Percentile	SchoolDigger Rating
2023	13.68	1763^rd	2142	17.7%
2024	10.96	1816^th	2125	14.5%

See the entire list of Best California High Schools for Hispanic Students!

Data source: test scores: California Department of Education, rankings: SchoolDigger.com

As you review the school rankings data, please be aware that some of the information from certain demographics is missing. The reason for this omission is that the data has been redacted from the source data itself due to low population samples in these specific demographic groups.

Redacting data from low population samples is a necessary step to ensure the reliability and accuracy of the results, as small sample sizes may not be representative of the broader population. Additionally, this measure helps protect the privacy of individuals belonging to these demographic groups.

Data source: California Department of Education

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Enrollment information for Imperial Ave. Holbrook High

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Year	White	African American	Asian	Hispanic	American Indian	Pacific Islander	Two or More Races	Total
1988	14	0	0	17	1	n/a	n/a	32
1989	10	0	0	19	0	n/a	n/a	29
1990	12	0	0	19	0	n/a	n/a	31
1991	21	1	0	20	0	n/a	n/a	42
1992	14	1	0	28	0	n/a	n/a	43
1993	19	2	0	30	0	n/a	n/a	51
1994	18	1	0	28	0	n/a	n/a	47
1995	5	1	0	21	0	n/a	n/a	27
1996	5	1	0	21	0	n/a	n/a	27
1997	11	2	0	30	0	n/a	n/a	43
1998	2	1	0	35	0	n/a	n/a	38
1999	15	2	1	28	0	n/a	n/a	46
2000	13	0	0	28	0	n/a	n/a	41
2001	10	1	0	28	0	n/a	n/a	39
2002	10	1	1	32	0	n/a	n/a	44
2003	10	1	1	32	0	n/a	n/a	44
2004	12	1	1	30	0	n/a	n/a	44
2005	11	0	0	35	0	n/a	n/a	46
2006	17	1	0	46	0	n/a	n/a	64
2007	15	3	0	51	0	n/a	n/a	69
2008	9	1	n/a	50	n/a	n/a	n/a	60
2009	16	0	0	49	0	0	0	65
2010	11	1	0	43	0	0	0	55
2011	16	1	0	53	0	0	1	71
2012	14	2	0	41	0	1	1	59
2013	15	0	0	51	0	0	3	69
2014	13	0	0	56	0	0	0	69
2015	7	0	0	50	0	0	0	57
2016	9	1	0	42	0	0	1	53
2017	10	0	0	45	0	0	1	56
2018	5	0	0	39	1	0	1	46
2019	0	0	0	0	0	0	0	0
2020	3	0	1	29	1	0	2	36
2021	2	0	0	30	1	0	1	34
2022	5	0	0	41	0	0	1	47
2023	1	1	0	48	0	0	0	50
2024	4	1	1	43	0	0	0	49

Data source: National Center for Education Statistics, U.S. Dept of Education.

About Enrollment/Ethnicity

For more information about how the Department of Education defines ethnicity, see Defining Race and Ethnicity Data, National Center for Education Statistics

Students eligible for free or discounted lunch at Imperial Ave. Holbrook High

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Year	# Students	Full-time Teachers	Student/Teacher ratio	% Free/Discounted Lunch
1988	32	2.0	16.0	n/a
1989	29	2.0	14.5	n/a
1990	31	2.0	15.5	n/a
1991	42	2.0	21.0	n/a
1992	43	2.0	21.5	7
1993	51	2.0	25.5	9.8
1994	47	2.0	23.5	17
1995	27	2.0	13.5	25.9
1996	27	2.0	13.5	25.9
1997	43	3.0	14.3	44.2
1998	38	3.0	12.7	63.2
1999	46	3.0	15.3	50
2000	41	3.0	13.7	43.9
2001	39	3.0	13.0	46.2
2002	44	2.0	22.0	40.9
2003	44	2.0	22.0	40.9
2004	44	2.0	22.0	40.9
2005	46	2.0	23.0	41.3
2006	64	3.0	21.3	35.9
2007	69	3.0	23.0	26.1
2008	60	0.8	75.0	36.7
2009	65	3.9	16.7	55.4
2010	55	3.2	17.1	56.4
2011	71	n/a	n/a	60.6
2012	59	2.9	20.3	n/a
2013	69	2.5	27.6	47.8
2014	69	2.8	24.3	59.4
2015	57	3.0	19.0	47.4
2016	53	3.0	17.6	49.1
2017	56	2.5	22.4	57.1
2018	46	3.5	13.1	58.7
2019	0	n/a	n/a	n/a
2020	36	n/a	n/a	61.1
2021	34	1.8	18.8	44.1
2022	47	1.7	26.5	59.6
2023	50	1.4	34.0	74
2024	49	1.9	24.7	57.1

Data source: National Center for Education Statistics, U.S. Dept of Education.

About Students eligible for discounted/free lunch:

The National School Lunch Program (NSLP) provides low-cost or free meals to students in U.S. public and nonprofit private schools based on household income. Those with incomes below 130% of the poverty line receive free lunch, while those between 130% and 185% qualify for reduced-price lunch. The percentage of students receiving free or reduced-price lunch serves as a marker for poverty, as it reflects the socioeconomic status of families in a given school or district. A higher FRPL rate typically indicates a higher concentration of low-income families, suggesting that the school or district may face additional challenges in providing adequate resources and support for student success.

Student/Teacher Ratio Imperial Ave. Holbrook High

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Year	# Students	Full-time Teachers	Student/Teacher ratio	% Free/Discounted Lunch
1988	32	2.0	16.0	n/a
1989	29	2.0	14.5	n/a
1990	31	2.0	15.5	n/a
1991	42	2.0	21.0	n/a
1992	43	2.0	21.5	7
1993	51	2.0	25.5	9.8
1994	47	2.0	23.5	17
1995	27	2.0	13.5	25.9
1996	27	2.0	13.5	25.9
1997	43	3.0	14.3	44.2
1998	38	3.0	12.7	63.2
1999	46	3.0	15.3	50
2000	41	3.0	13.7	43.9
2001	39	3.0	13.0	46.2
2002	44	2.0	22.0	40.9
2003	44	2.0	22.0	40.9
2004	44	2.0	22.0	40.9
2005	46	2.0	23.0	41.3
2006	64	3.0	21.3	35.9
2007	69	3.0	23.0	26.1
2008	60	0.8	75.0	36.7
2009	65	3.9	16.7	55.4
2010	55	3.2	17.1	56.4
2011	71	n/a	n/a	60.6
2012	59	2.9	20.3	n/a
2013	69	2.5	27.6	47.8
2014	69	2.8	24.3	59.4
2015	57	3.0	19.0	47.4
2016	53	3.0	17.6	49.1
2017	56	2.5	22.4	57.1
2018	46	3.5	13.1	58.7
2019	0	n/a	n/a	n/a
2020	36	n/a	n/a	61.1
2021	34	1.8	18.8	44.1
2022	47	1.7	26.5	59.6
2023	50	1.4	34.0	74
2024	49	1.9	24.7	57.1

Data source: National Center for Education Statistics, U.S. Dept of Education.

About Student-Teacher Ratio

Student/teacher ratio is calculated by dividing the total number of students by the total number of full-time equivalent teachers. Please note that a smaller student/teacher ratio does not necessarily translate to smaller class size. In some instances, schools hire teachers part time, and some teachers are hired for specialized instruction with very small class sizes. These and other factors contribute to the student/teacher ratio. Note: For private schools, Student/teacher ratio may not include Pre-Kindergarten.

Pre and Post Pandemic Data

Impact of COVID-19 on Imperial Ave. Holbrook High

The coronavirus has had a profound impact on education in America. Learning shifted online overnight, attendance numbers dwindled, and enrollment decreased. SchoolDigger.com is making it easier for you to better assess how COVID-19 has impacted your school. Through the collection of pre-pandemic (2019) and current data, SchoolDigger.com is sharing test scores, enrollment numbers and school demographics from schools across the country – and we make it easy to see how impacted schools compare locally and statewide.

Student Body

	Number of students Pre-pandemic (2018-2019)	Number of students Post pandemic (2022-2023)	Change (%)
Total Students	0	50
African American	0	1
American Indian	0	0
Asian	0	0
Hispanic	0	48
Pacific Islander	0	0
White	0	1
Two or More Races	0	0

Schools Near Imperial Ave. Holbrook High

Choose columns to see: Summary School Students/Teachers Ranking Test Scores Finance All

School													Students/Teachers											Ranking (2024)				Ranking (2023)				CAST Science (2024)			Smarter Balanced Assessments English Language Arts/Literacy (2024)		Smarter Balanced Assessments Mathematics (2024)		Per Pupil Expenditures (2018)
Name	Type	Grades	Address	City	Zip	County	District	Is Charter	Is Magnet	Is Virtual	Is Title I	Phone	Enrollment	Full-time Teachers	Student/ Teacher Ratio	Free/Discounted Lunch Recipients	White	Black	Hispanic	Asian	American Indian	Pacific Islander	Two or More Races	Average Standard Score (2024)	Statewide Rank (2024)	State Percentile (2024)	SchoolDigger Rating (2024)	Average Standard Score (2023)	Statewide Rank (2023)	State Percentile (2023)	Rank Change from Previous Year	CAST Science 11th Grade	CAST Science 12th Grade	CAST Science End of Course	Smarter Balanced Assessments English Language Arts/Literacy 11th Grade	Smarter Balanced Assessments English Language Arts/Literacy End of Course	Smarter Balanced Assessments Mathematics 11th Grade	Smarter Balanced Assessments Mathematics End of Course	Total
Imperial Ave. Holbrook High	Public	9-12	322 North Imperial Ave.	Imperial	92251	Imperial County	Imperial Unified	No	(n/a)	No	(n/a)	(760) 355-3207	49	2	24.7	57.1%	4 (8.2%)	1 (2.0%)	43 (87.8%)	1 (2.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	11.6	1917^th of 2323 public high schools	17.5%		13.7	1879^th of 2348 public high schools	20.0%	38	0.0		0.0	18.8	18.8	5.6	5.6
Imperial High	Public	9-12	517 West Barioni Blvd.	Imperial	92251	Imperial County	Imperial Unified	No	(n/a)	No	(n/a)	(760) 355-3220	1,378	58	23.7	38.3%	121 (8.8%)	13 (0.9%)	1,209 (87.7%)	23 (1.7%)	1 (0.1%)	0 (0.0%)	10 (0.7%)	61.3	606^th of 2323 public high schools	73.9%		61.2	629^th of 2348 public high schools	73.2%	23	35.8		35.2	62.6	62.6	20.9	20.9
Imperial Valley Regional Occupational Program	Public	9-12	687 State St.	El Centro	92243	Imperial County	Imperial Valley Regional Occupational Program	No	(n/a)	(n/a)	(n/a)	(760) 482-2600	0				0 ()	0 ()	0 ()	0 ()	0 ()	0 ()	0 ()								(n/a)
Central Union High	Public	9-12	1001 Brighton Ave.	El Centro	92243	Imperial County	Central Union High	No	(n/a)	No	(n/a)	(760) 336-4300	1,955	93	21.1	73.4%	39 (2.0%)	19 (1.0%)	1,876 (96.0%)	12 (0.6%)	3 (0.2%)	0 (0.0%)	6 (0.3%)	54.7	759^th of 2323 public high schools	67.3%		50.5	856^th of 2348 public high schools	63.5%	97		19.4	19.4	61.4	61.4	23.8	23.8	$14,526
Desert Oasis High (Continuation)	Public	9-12	1302 South Third St.	El Centro	92243	Imperial County	Central Union High	No	(n/a)	No	(n/a)	(760) 336-4555	131	10	13.7	93.9%	3 (2.3%)	2 (1.5%)	126 (96.2%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	11.4	1926^th of 2323 public high schools	17.1%		13.2	1892^nd of 2348 public high schools	19.4%	34		4.1	4.1	15.0	15.0	0.0	0.0	$17,160
Southwest High	Public	9-12	2001 Ocotillo Dr.	El Centro	92243	Imperial County	Central Union High	No	(n/a)	No	(n/a)	(760) 336-4100	1,842	91	20.1	75.1%	52 (2.8%)	4 (0.2%)	1,759 (95.5%)	21 (1.1%)	1 (0.1%)	2 (0.1%)	1 (0.1%)	55	750^th of 2323 public high schools	67.7%		56.9	717^th of 2348 public high schools	69.5%	33		29.5	29.5	56.0	56.0	17.8	17.8	$13,789
Mt. Signal Virtual Academy	Public, Virtual	9-12	2345 South Second St.	El Centro	92243	Imperial County	Central Union High	No	(n/a)	Yes	(n/a)	(760) 312-7050	71	4	19.1	69.0%	4 (5.6%)	1 (1.4%)	66 (93.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	33	1335^th of 2323 public high schools	42.5%		41.2	1099^th of 2348 public high schools	53.2%	236		23.5	23.5	33.3	33.3	6.7	6.7
Imperial Pathways Charter	Public, Virtual, Charter	9-12	1398 Sperber Rd.	El Centro	92243	Imperial County	Imperial County Office of Education	Yes	(n/a)	Yes	(n/a)	(760) 312-5566	241	10	24.1	92.9%	6 (2.5%)	4 (1.7%)	230 (95.4%)	0 (0.0%)	1 (0.4%)	0 (0.0%)	0 (0.0%)	14.8	1817^th of 2323 public high schools	21.8%		11.1	1997^th of 2348 public high schools	14.9%	180		4.0	4.0
Brawley Union High	Public	9-12	480 North Imperial Ave.	Brawley	92227	Imperial County	Brawley Union High	No	(n/a)	No	(n/a)	(760) 312-6073	1,840	77	23.8	72.4%	70 (3.8%)	10 (0.5%)	1,735 (94.3%)	16 (0.9%)	1 (0.1%)	1 (0.1%)	6 (0.3%)	54.1	781^st of 2323 public high schools	66.4%		44.8	994^th of 2348 public high schools	57.7%	213	24.5		23.9	61.2	61.2	22.6	22.6	$8,936
Desert Valley High (Continuation)	Public	9-12	104 West Magnolia St.	Brawley	92227	Imperial County	Brawley Union High	No	(n/a)	No	(n/a)	(760) 312-5100	165	8	19.6	89.7%	4 (2.4%)	0 (0.0%)	161 (97.6%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	13.8	1852^nd of 2323 public high schools	20.3%		13.7	1877^th of 2348 public high schools	20.1%	25	5.6		5.0	24.1	24.1	2.5	2.5	$11,227

Frequently Asked Questions about Imperial Ave. Holbrook High

Is Imperial Ave. Holbrook High a good school?

Imperial Ave. Holbrook High ranks in the bottom 17.5% of California high schools.

What district is Imperial Ave. Holbrook High in?

Imperial Unified

How many students attend Imperial Ave. Holbrook High?

In the 2023-24 school year, 49 students attended Imperial Ave. Holbrook High.

What is the racial makeup of Imperial Ave. Holbrook High?

Students at Imperial Ave. Holbrook High are 88% Hispanic, 8% White, 2% African American, 2% Asian.

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SchoolDigger data sources: National Center for Education Statistics, U.S. Department of Education, the U.S. Census Bureau and the California Department of Education.

IMPORTANT DISCLAIMERS: Not all boundaries are included. We make every effort to ensure that boundaries are up-to-date. But it's important to note that these are approximations and are for general informational purposes only. To verify legal descriptions of boundaries or school locations, contact your local tax assessor's office and/or school district.