High · Regular · Grades 9 to 12

Harlem High School, Machesney Park, IL

CEP schoolHarlem High School is a public high school in Machesney Park, part of Harlem UD 122 School District. It enrolled 1,884 students in 2024-25, with 14.2 students per full-time teacher.

Enrollment and teachers

Students: 1,884
Teachers (FTE): 133.0
Students per teacher: 14.2
Grades: 9 to 12

This school's ratio is about the same as the district figure of 13.8. The Illinois average across schools is 13.7. Ratios count all teachers, including specialists, so they are lower than typical class sizes.

This school14.2

District13.8

Illinois13.7

United States15.3

School details

Address: 9229 N Alpine Rd, Machesney Park, IL 61115
Phone: (815)654-4511
District: Harlem UD 122 School District
County: Winnebago County
Level: High
Type: Regular
Status: Open
Charter: No
Virtual: No
Locale: Suburb: Large
NCES school ID: 171824002100

Location from NCES coordinates. Map data OpenStreetMap contributors. Open larger map

School meals

Counts of students eligible for free or reduced-price lunch, as reported to NCES.

Free or reduced-price lunch: 1,03054.7% of enrollment.
Community Eligibility Provision: Yes (CEP school)

Schools in the Community Eligibility Provision (CEP) serve free meals to all students, so their free lunch counts often reflect direct certification or total enrollment. Free and reduced lunch shares are not comparable between CEP and non-CEP schools.

Related schools

We publish official enrollment and staffing data, not ratings or test scores.

Source: NCES Common Core of Data 2024-25 and F-33 finance 2020, via the Urban Institute Education Data Portal. Last reviewed October 2026. Blank values are not available, not applicable or suppressed in the source. See the methodology.