Hillsdale High (San Mateo Union High SCH DIST.), California - School Profile in 2023-2024 School Year

Updated on August 8, 2025.

Hillsdale High is a High in San Mateo, CA. It currently serves 1581 students (grades 09-12). The school is part of the San Mateo 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 San Mateo Union High School District and all schools in California.

Other Details

School Type: Regular School

School Level: High

Number of Students:1581

Number of Teachers: 86

Student/Teacher Ratio: 18.29

Location Info

Location: 3115 Del Monte St., San Mateo, CA 94403

Mailing Address: 3115 Del Monte St., San Mateo, CA 94403-3800

Phone: (650)558-2699

Website: http://www.smuhsd.org/hillsdalehigh

Data Source: NCES.

Student Population Per Grade

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Grade	Population
Grade 10	393
Grade 11	400
Grade 12	417
Grade 9	371

Gender/Sex of Hillsdale High Student Population

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Gender	Population	Percent of Population (%)
Male	843	53.32
Female	732	46.30

Race/Ethnicity Demography of Hillsdale High Student Population

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Race/Ethnicity	Population	Percent of Population (%)
American Indian or Alaska Native	1	0.06
Asian	315	19.92
Black or African American	18	1.14
Hispanic/Latino	580	36.69
Native Hawaiian or Other Pacific Islander	20	1.26
Two or more races	157	9.93
White	484	30.61

Male - Race/Ethnicity Demography of Student Population

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Race/Ethnicity	Population	Percent of Population (%)
American Indian or Alaska Native	1	0.12
Asian	173	20.52
Black or African American	10	1.19
Hispanic/Latino	304	36.06
Native Hawaiian or Other Pacific Islander	10	1.19
Two or more races	86	10.20
White	259	30.72

Female - Race/Ethnicity Demography of Student Population

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Race/Ethnicity	Population	Percent of Population (%)
Asian	142	19.40
Black or African American	8	1.09
Hispanic/Latino	276	37.71
Native Hawaiian or Other Pacific Islander	10	1.37
Two or more races	71	9.70
White	225	30.74

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 (%)
Asian	77	19.59
Black or African American	2	0.51
Hispanic/Latino	152	38.68
Native Hawaiian or Other Pacific Islander	5	1.27
Two or more races	36	9.16
White	119	30.28

Grade 11 - Race/Ethnicity of Both Genders

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Race/Ethnicity	Population	Percent of Population (%)
American Indian or Alaska Native	1	0.25
Asian	77	19.25
Black or African American	7	1.75
Hispanic/Latino	138	34.50
Native Hawaiian or Other Pacific Islander	6	1.50
Two or more races	36	9.00
White	133	33.25

Grade 12 - Race/Ethnicity of Both Genders

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Race/Ethnicity	Population	Percent of Population (%)
Asian	89	21.34
Black or African American	7	1.68
Hispanic/Latino	150	35.97
Native Hawaiian or Other Pacific Islander	3	0.72
Two or more races	46	11.03
White	120	28.78

Grade 9 - Race/Ethnicity of Both Genders

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Race/Ethnicity	Population	Percent of Population (%)
Asian	72	19.41
Black or African American	2	0.54
Hispanic/Latino	140	37.74
Native Hawaiian or Other Pacific Islander	6	1.62
Two or more races	39	10.51
White	112	30.19