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Imperial Ave. Holbrook High

Public Grades 9-12

1653^rd

SchoolDigger Rank ?

of 2,137 California High Schools

Better than 23% of California high schools

Summary

Imperial Ave. Holbrook High is a very small, 9–12 school in Imperial, California, with 28 students. Its 2025–2026 chronic absenteeism rate was 78%, compared with 18% statewide and 18% in Imperial Unified; the nearby-school average was 42%. Test results were also low in all three subjects. The most urgent concern is the combination of very high absenteeism and weak academic results.

Math and English are the school’s clearest weaknesses compared with nearby schools, its district, and the state. In 2025–2026, Holbrook’s math proficiency was 0%, 36 percentage points below the district and 38 below the state; it was also lower than every nearby school with a reported score. ELA proficiency was 30%, the lowest among nearby schools with reported results and 22 points below the district. Science was relatively stronger: 20% proficiency was near the nearby-school average of 21%, though 15 points below the district and 16 below the state. The reported 2024–2025 graduation rate was 60%, compared with 96% in the district and 88% statewide.

ELA has improved over time, rising from 17% in 2022–2023 to 30% in 2025–2026, while math was 0% in both years; science fluctuated, reaching 27% in 2024–2025 before falling to 20%. SchoolDigger rated Holbrook at the 23rd percentile and 1 star in 2025–2026, down from the 35th percentile and 2 stars the year before. The 2024–2025 student-teacher ratio was 11.1, the lowest among nearby schools, whose average was 19.9. In 2024–2025, 61% of students were free/reduced lunch eligible, compared with a 76% nearby-school average. SchoolDigger’s measure of how well the school serves Low Socio Economic Status Students rose from the 12th percentile in 2023–2024 to the 32nd in 2025–2026; its Male Students measure also rose, from the 14th to the 32nd percentile between 2022–2023 and 2025–2026.

Students ?

11.1

Student/teacher ratio ?

$17,963

Per pupil spending ?

60.7%

Free/reduced lunch eligible (2024-25) ?

All students in California receive free school meals.

322 North Imperial Ave.
Imperial, CA 92251-1267

(760) 355-3207

District: Imperial Unified

Racial breakdown:

Hispanic:

89.3%

White:

10.7%

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At a glance

▲ Ranking trend: Rebounding — 10th percentile in 2017 → 23rd in 2026

Strengths

✓Ranking is rebounding — up to 23rd (2026) from a 10th-percentile low (2017)

✓Small classes — about 11 students per teacher

Worth a look

!Test scores below the California average (17% vs 42% meeting standards)

!In the lower quartile statewide (23rd percentile)

!Graduation rate below the California average (60% vs 88%)

Students meeting standards (2025-2026) ?

This school17%

District avg42%

California avg42%

1,653^rd of 2,137

California public high schools ?

Bottom 23%▼ down 7 pts since 2016

From bottom 30% (2016) to bottom 23% (2026)

See the entire ranking list of California High Schools →

★★★★★

SchoolDigger rating ?

2^nd of 2High Schools in the Imperial Unified

424^th of 968Imperial Unified among California districts

Statewide rank percentile over time (100 = the top-ranked school in the state; click a legend item to add a student group)

Show full rank history (all student groups)

All Students

Year	Avg score	Statewide rank	California percentile	Rating
2026	20.2	1653 of 2137	22.6%	★☆☆☆☆
2025	34.1	1400 of 2162	35.2%	★★☆☆☆
2024	14.2	1844 of 2159	14.6%	★☆☆☆☆
2023	15.8	1809 of 2170	16.6%	★☆☆☆☆
2018	13.0	1663 of 2017	17.6%	★☆☆☆☆
2017	10.2	1818 of 2021	10.0%	★☆☆☆☆
2016	26.2	1428 of 2039	30.0%	★★☆☆☆
2013	34.3	1202 of 2426	50.5%	★★★☆☆
2012	30.7	1283 of 2354	45.5%	★★☆☆☆
2011	27.0	1408 of 2367	40.5%	★★☆☆☆
2010	40.1	1008 of 2281	55.8%	★★★☆☆
2009	45.3	874 of 2238	60.9%	★★★☆☆
2008	44.3	810 of 2117	61.7%	★★★☆☆
2007	26.5	1251 of 2063	39.4%	★★☆☆☆
2006	31.2	1059 of 1968	46.2%	★★☆☆☆
2005	38.3	851 of 1901	55.2%	★★★☆☆
2004	18.6	1332 of 1653	19.4%	★☆☆☆☆

Female

Year	Avg score	Statewide rank	California percentile	Rating
2023	18.7	1543 of 1915	19.4%	★☆☆☆☆

Hispanic

Year	Avg score	Statewide rank	California percentile	Rating
2026	19.7	1496 of 1880	20.4%	★☆☆☆☆
2024	12.6	1697 of 1902	10.8%	★☆☆☆☆
2023	15.7	1626 of 1917	15.2%	★☆☆☆☆

Low Socio Economic Status

Year	Avg score	Statewide rank	California percentile	Rating
2026	33.2	1362 of 1999	31.9%	★★☆☆☆
2024	13.6	1775 of 2026	12.4%	★☆☆☆☆
2023	15.2	1744 of 2030	14.1%	★☆☆☆☆

Male

Year	Avg score	Statewide rank	California percentile	Rating
2026	32.0	1315 of 1932	31.9%	★★☆☆☆
2023	14.2	1692 of 1963	13.8%	★☆☆☆☆

How student groups rank statewide ? (each group's percentile vs the same group at other schools — higher is better; the +/- beside each compares the group with this school's overall percentile)

Male (2026)32nd percentile+9 vs school

Low Socio Economic Status (2026)32nd percentile+9 vs school

Hispanic (2026)20th percentile~ school

Female (2023)19th percentile+3 vs school

By subject vs California (2025-2026) ?

English Language Arts/Literacy30%-19 vs state

Science20%-16 vs state

Mathematics0%-38 vs state

★

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Schools Near Imperial Ave. Holbrook High

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Ranking:

E Elementary M Middle H High A Alternative P Private

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

School													Students/Teachers											Ranking (2026)				Ranking (2025)				CAST Science (2026)				Smarter Balanced Assessments English Language Arts/Literacy (2026)		Smarter Balanced Assessments Mathematics (2026)		Per Pupil Expenditures (2025)
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/reduced lunch (2024-25)	White	Black	Hispanic	Asian	American Indian	Pacific Islander	Two or More Races	Average Standard Score (2026)	Statewide Rank (2026)	State Percentile (2026)	SchoolDigger Rating (2026)	Average Standard Score (2025)	Statewide Rank (2025)	State Percentile (2025)	Rank Change from Previous Year	CAST Science 10th Grade	CAST Science 11th Grade	CAST Science 12th Grade	CAST Science All Grades	Smarter Balanced Assessments English Language Arts/Literacy 11th Grade	Smarter Balanced Assessments English Language Arts/Literacy All Grades	Smarter Balanced Assessments Mathematics 11th Grade	Smarter Balanced Assessments Mathematics All Grades	Per Pupil Expenditures Total	Sub-total from Federal Funds	Sub-total from State/Local Funds
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	28	3	11.1	60.7%	3 (10.7%)	0 (0.0%)	25 (89.3%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	20.2	1653^rd of 2137 public high schools	22.6%		34.1	1400^th of 2162 public high schools	35.2%	253		20.0		20.0	30.0	30.0	0.0	0.0	$17,963	$10,320	$7,643
Imperial High	Public	9-12	517 West Barioni Blvd.	Imperial	92251	Imperial County	Imperial Unified	No	(n/a)	No	(n/a)	(760) 355-3220	1,439	62	23.0	47.0%	117 (8.1%)	12 (0.8%)	1,278 (88.8%)	22 (1.5%)	0 (0.0%)	0 (0.0%)	10 (0.7%)	59.7	821^st of 2137 public high schools	61.6%		64.3	702^nd of 2162 public high schools	67.5%	119		40.3		40.2	63.9	63.9	19.6	19.6	$22,967	$21,948	$1,019
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	2,006	96	20.9	72.6%	41 (2.0%)	19 (0.9%)	1,931 (96.3%)	10 (0.5%)	0 (0.0%)	0 (0.0%)	5 (0.2%)	45	1143^rd of 2137 public high schools	46.5%		51	1018^th of 2162 public high schools	52.9%	125		20.0	18.3	19.2	55.1	55.1	25.1	25.1	$26,604	$25,254	$1,350
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	138	10	13.9	94.2%	3 (2.2%)	3 (2.2%)	131 (94.9%)	0 (0.0%)	1 (0.7%)	0 (0.0%)	0 (0.0%)	21.6	1625^th of 2137 public high schools	24.0%		14.4	1821^st of 2162 public high schools	15.8%	196			6.8	6.8	37.3	37.3	1.5	1.5	$43,806	$40,908	$2,898
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	1,846	94	19.5	72.1%	54 (2.9%)	6 (0.3%)	1,760 (95.3%)	19 (1.0%)	0 (0.0%)	1 (0.1%)	2 (0.1%)	52.1	991^st of 2137 public high schools	53.6%		55.8	911^th of 2162 public high schools	57.9%	80			23.5	23.5	52.8	52.8	23.7	23.7	$27,495	$25,764	$1,731
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	246	11	22.9	92.7%	6 (2.4%)	2 (0.8%)	237 (96.3%)	0 (0.0%)	1 (0.4%)	0 (0.0%)	0 (0.0%)								(n/a)			17.2	17.2					$28,471	$27,860	$611
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	1,863	80	23.1	70.7%	61 (3.3%)	14 (0.8%)	1,741 (93.5%)	17 (0.9%)	2 (0.1%)	1 (0.1%)	26 (1.4%)	59	835^th of 2137 public high schools	60.9%		64.5	699^th of 2162 public high schools	67.7%	136	21.1	42.4	26.7	31.0	61.8	61.8	33.6	33.6	$24,958	$23,598	$1,360
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	162	9	18.7	80.9%	1 (0.6%)	1 (0.6%)	160 (98.8%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	18.5	1683^rd of 2137 public high schools	21.2%		17.8	1727^th of 2162 public high schools	20.1%	44		9.2		10.3	31.1	31.1	6.6	6.6	$31,468	$30,460	$1,008
Renaissance	Public	9-12	104 Magnolia Ave.	Brawley	92227	Imperial County	Brawley Union High	No	(n/a)	No	(n/a)	(760) 312-5110	22	1	21.1	81.8%	0 (0.0%)	0 (0.0%)	22 (100.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)								(n/a)									$28,562	$27,776	$786

Frequently Asked Questions about Imperial Ave. Holbrook High

Is Imperial Ave. Holbrook High a good school?

Imperial Ave. Holbrook High ranks in the bottom 22.6% of California high schools.

How many students attend Imperial Ave. Holbrook High?

In the 2024-25 school year, 28 students attended Imperial Ave. Holbrook High.

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

Students at Imperial Ave. Holbrook High are 89% Hispanic, 11% White.

What district is Imperial Ave. Holbrook High in?

Imperial Unified

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Latest California data All new data »

2025–26 attendance data, dropout rates & graduation ratesNewOct 15, 2026

2025–26 CAST, CSA Spanish & Smarter Balanced Assessments scoresNewOct 15, 2026

2024–25 school spending dataJul 1, 2026

2024–25 attendance dataMar 13, 2026

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.