Building 21 (Philadelphia City SD SCH DIST.), Pennsylvania - School Profile in 2023-2024 School Year
Updated on August 8, 2025.
Building 21 is a High in Philadelphia, PA. It currently serves 382 students (grades 09-12). The school is part of the Philadelphia City SD 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 Philadelphia City SD School District and all schools in Pennsylvania.
Other Details
School Type: Regular School
School Level: High
Number of Students:382
Number of Teachers: 25
Student/Teacher Ratio: 15.16
Location Info
Location: 6501 Limekiln Pike, Philadelphia, PA 19138
Mailing Address: 6501 Limekiln Pike, Philadelphia, PA 19138
Phone: (215)400-7450
Data Source: NCES.
Student Population Per Grade
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| Grade | Population |
|---|---|
| Grade 10 | 94 |
| Grade 11 | 83 |
| Grade 12 | 73 |
| Grade 9 | 132 |
Gender/Sex of Building 21 Student Population
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| Gender | Population | Percent of Population (%) |
|---|---|---|
| Male | 198 | 51.83 |
| Female | 184 | 48.17 |
Race/Ethnicity Demography of Building 21 Student Population
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| Race/Ethnicity | Population | Percent of Population (%) |
|---|---|---|
| Asian | 4 | 1.05 |
| Black or African American | 345 | 90.31 |
| Hispanic/Latino | 28 | 7.33 |
| Two or more races | 5 | 1.31 |
Male - Race/Ethnicity Demography of Student Population
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| Race/Ethnicity | Population | Percent of Population (%) |
|---|---|---|
| Asian | 4 | 2.02 |
| Black or African American | 181 | 91.41 |
| Hispanic/Latino | 11 | 5.56 |
| Two or more races | 2 | 1.01 |
Female - Race/Ethnicity Demography of Student Population
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| Race/Ethnicity | Population | Percent of Population (%) |
|---|---|---|
| Black or African American | 164 | 89.13 |
| Hispanic/Latino | 17 | 9.24 |
| Two or more races | 3 | 1.63 |
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 (%) |
|---|---|---|
| Black or African American | 84 | 89.36 |
| Hispanic/Latino | 8 | 8.51 |
| Two or more races | 2 | 2.13 |
Grade 11 - Race/Ethnicity of Both Genders
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| Race/Ethnicity | Population | Percent of Population (%) |
|---|---|---|
| Asian | 2 | 2.41 |
| Black or African American | 74 | 89.16 |
| Hispanic/Latino | 5 | 6.02 |
| Two or more races | 2 | 2.41 |
Grade 12 - Race/Ethnicity of Both Genders
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| Race/Ethnicity | Population | Percent of Population (%) |
|---|---|---|
| Asian | 1 | 1.37 |
| Black or African American | 63 | 86.30 |
| Hispanic/Latino | 8 | 10.96 |
| Two or more races | 1 | 1.37 |
Grade 9 - Race/Ethnicity of Both Genders
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| Race/Ethnicity | Population | Percent of Population (%) |
|---|---|---|
| Asian | 1 | 0.76 |
| Black or African American | 124 | 93.94 |
| Hispanic/Latino | 7 | 5.30 |