Harlem High School (Harlem UD 122 SCH DIST.), Illinois - School Profile in 2023-2024 School Year

Updated on August 8, 2025.

Harlem High School is a High in Machesney Park, IL. It currently serves 1947 students (grades 09-12). The school is part of the Harlem UD 122 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 Harlem UD 122 School District and all schools in Illinois.

Other Details

School Type: Regular School
School Level: High
Number of Students:1947
Number of Teachers: 138
Student/Teacher Ratio: 14.12

Location Info

Location: 9229 N Alpine Rd, Machesney Park, IL 61115
Mailing Address: 9229 N Alpine Rd, Machesney Park, IL 61115-1924
Phone: (815)654-4511
Data Source: NCES.
Student Population Per Grade
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Grade Population
Grade 10 447
Grade 11 456
Grade 12 417
Grade 9 627
Gender/Sex of Harlem High School Student Population
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Gender Population Percent of Population (%)
Male 1039 53.36
Female 908 46.64
Race/Ethnicity Demography of Harlem High School Student Population
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Race/Ethnicity Population Percent of Population (%)
American Indian or Alaska Native 9 0.46
Asian 31 1.59
Black or African American 159 8.17
Hispanic/Latino 283 14.54
Two or more races 153 7.86
White 1312 67.39
Male - Race/Ethnicity Demography of Student Population
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Race/Ethnicity Population Percent of Population (%)
American Indian or Alaska Native 6 0.58
Asian 14 1.35
Black or African American 84 8.09
Hispanic/Latino 153 14.73
Two or more races 76 7.32
White 706 67.95
Female - Race/Ethnicity Demography of Student Population
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Race/Ethnicity Population Percent of Population (%)
American Indian or Alaska Native 3 0.33
Asian 17 1.87
Black or African American 75 8.26
Hispanic/Latino 130 14.32
Two or more races 77 8.48
White 606 66.74

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 1 0.22
Asian 7 1.57
Black or African American 32 7.16
Hispanic/Latino 65 14.54
Two or more races 34 7.61
White 308 68.90
Grade 11 - Race/Ethnicity of Both Genders
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Race/Ethnicity Population Percent of Population (%)
American Indian or Alaska Native 2 0.44
Asian 5 1.10
Black or African American 32 7.02
Hispanic/Latino 68 14.91
Two or more races 36 7.90
White 313 68.64
Grade 12 - Race/Ethnicity of Both Genders
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Race/Ethnicity Population Percent of Population (%)
American Indian or Alaska Native 2 0.48
Asian 13 3.12
Black or African American 20 4.80
Hispanic/Latino 48 11.51
Two or more races 26 6.24
White 308 73.86
Grade 9 - Race/Ethnicity of Both Genders
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Race/Ethnicity Population Percent of Population (%)
American Indian or Alaska Native 4 0.64
Asian 6 0.96
Black or African American 75 11.96
Hispanic/Latino 102 16.27
Two or more races 57 9.09
White 383 61.09