High · Regular · Grades 9 to 12

Garnet Valley High School, Glen Mills, PA

Garnet Valley High School is a public high school in Glen Mills, part of Garnet Valley SD. It enrolled 1,485 students in 2024-25, with 12.9 students per full-time teacher.Listed in NCES data as "Garnet Valley HS".

Enrollment and teachers

Students: 1,485
Teachers (FTE): 115.0
Students per teacher: 12.9
Grades: 9 to 12

This school's ratio is 1.3 higher than the district figure of 11.6. The Pennsylvania average across schools is 13.5. Ratios count all teachers, including specialists, so they are lower than typical class sizes.

This school12.9

District11.6

Pennsylvania13.5

United States15.3

School details

Address: 552 Smithbridge Rd, Glen Mills, PA 19342
Phone: (610)579-7745
District: Garnet Valley SD
County: Delaware County
Level: High
Type: Regular
Status: Open
Charter: No
Locale: Suburb: Large
NCES school ID: 421059001869

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 lunch: 219
Reduced-price lunch: 19
Free or reduced-price lunch: 23816.0% of enrollment.
Community Eligibility Provision: No

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.