A
Seneca Valley HS
PublicHighGrades 9–12Virtual
128 Seneca School Rd, Harmony, PA 16037 · (724) 452-6041 · Part of Seneca Valley School District
Students
2,282
Students per teacher
13:1
Setting
Rural
Grades
9–12
What stands out about Seneca Valley HS
- School Grade A: near the top of Pennsylvania’s public schools
- Math proficiency 34 pts above the state
- Reading / language arts 20 pts above the state
Test scores
EDFacts via Urban Institute Education Data Portal (SY2020-21) · 2020–21Math proficiency71%
State average 37.3%
Reading / language arts75%
State average 55%
Location
Directions ↗
128 Seneca School Rd, Harmony
Students
Enrollment by grade
Grade 9542
Grade 10567
Grade 11599
Grade 12574
Enrollment over time
2,341’20
2,313’21
2,307’22
2,294’23
2,282’24
About steady.
Who goes here
White 87%Two or more races 5%Hispanic 4%Asian 3%Black 2%
As reported to NCES, share of students with a reported race or ethnicity.
What neighbors say
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Parents talk
Conversations in Town Square that mention Seneca Valley HS.
Other schools in Seneca Valley School District
School facts: U.S. Department of Education (NCES), 2024-2025 school year. Scores: EDFacts via Urban Institute Education Data Portal (SY2020-21). The School Grade is our own summary of state test results. Neighbor ratings are opinions, not an official measure of school quality.