Ontario High (Chaffey Joint Union High SCH DIST.), California - School Profile in 2023-2024 School Year

Updated on August 8, 2025.

Ontario High is a High in Ontario, CA. It currently serves 2121 students (grades 09-12). The school is part of the Chaffey Joint Union High School District.

Below, we provide details about the school including the population per grade, the racial demography of the student population, the racial demography of the student population per gender/sex, and the racial demography per grade level.

You can see similar information for other schools in Chaffey Joint Union High School District and all schools in California.

Other Details

School Type: Regular School

School Level: High

Number of Students:2121

Number of Teachers: 96

Student/Teacher Ratio: 22.20

Location Info

Location: 901 West Francis St., Ontario, CA 91762

Mailing Address: 901 West Francis St., Ontario, CA 91762-6214

Phone: (909)988-7411

Website: http://www.cjuhsd.net

Data Source: NCES.

Student Population Per Grade

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Grade	Population
Grade 10	565
Grade 11	466
Grade 12	554
Grade 9	536

Gender/Sex of Ontario High Student Population

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Gender	Population	Percent of Population (%)
Male	1086	51.20
Female	1034	48.75

Race/Ethnicity Demography of Ontario High Student Population

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Race/Ethnicity	Population	Percent of Population (%)
American Indian or Alaska Native	20	0.94
Asian	75	3.54
Black or African American	46	2.17
Hispanic/Latino	1882	88.73
Native Hawaiian or Other Pacific Islander	6	0.28
Two or more races	37	1.74
White	54	2.55

Male - Race/Ethnicity Demography of Student Population

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Race/Ethnicity	Population	Percent of Population (%)
American Indian or Alaska Native	8	0.74
Asian	41	3.78
Black or African American	21	1.93
Hispanic/Latino	955	87.94
Native Hawaiian or Other Pacific Islander	1	0.09
Two or more races	24	2.21
White	36	3.32

Female - Race/Ethnicity Demography of Student Population

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Race/Ethnicity	Population	Percent of Population (%)
American Indian or Alaska Native	12	1.16
Asian	34	3.29
Black or African American	25	2.42
Hispanic/Latino	927	89.65
Native Hawaiian or Other Pacific Islander	5	0.48
Two or more races	13	1.26
White	18	1.74

Race Demography Per Grade

The tables below shows the Race/Ethnicity of the student population per grade.

Grade 10 - Race/Ethnicity of Both Genders

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Race/Ethnicity	Population	Percent of Population (%)
American Indian or Alaska Native	4	0.71
Asian	19	3.36
Black or African American	15	2.66
Hispanic/Latino	498	88.14
Native Hawaiian or Other Pacific Islander	2	0.35
Two or more races	13	2.30
White	13	2.30

Grade 11 - Race/Ethnicity of Both Genders

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Race/Ethnicity	Population	Percent of Population (%)
American Indian or Alaska Native	7	1.50
Asian	17	3.65
Black or African American	9	1.93
Hispanic/Latino	411	88.20
Native Hawaiian or Other Pacific Islander	2	0.43
Two or more races	7	1.50
White	13	2.79

Grade 12 - Race/Ethnicity of Both Genders

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Race/Ethnicity	Population	Percent of Population (%)
American Indian or Alaska Native	5	0.90
Asian	26	4.69
Black or African American	8	1.44
Hispanic/Latino	488	88.09
Two or more races	10	1.81
White	17	3.07

Grade 9 - Race/Ethnicity of Both Genders

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Race/Ethnicity	Population	Percent of Population (%)
American Indian or Alaska Native	4	0.75
Asian	13	2.42
Black or African American	14	2.61
Hispanic/Latino	485	90.49
Native Hawaiian or Other Pacific Islander	2	0.37
Two or more races	7	1.31
White	11	2.05