Seneca Valley HS
🇺🇸 Official data · 2025Harmony, Pennsylvania 16037 · Seneca Valley SD
#50 of 618 high schools in Pennsylvania
#546 of 16,910 nationally
About Seneca Valley HS
Seneca Valley HS is a public high located in Harmony, in the Seneca Valley SD school district of Pennsylvania, United States. It caters for Grades 9–12. In 2025 it enrolled 2,282 students. Traditional public schools run by a school district; free to attend.
Its Success Index (US) is 86.1 out of 100, placing it in the top 5% of high schools in United States and 50th of 618 ranked high schools in Pennsylvania. Its strongest component is reading proficiency (91th percentile), and its weakest is students per teacher (64th percentile).
Other published figures: enrollment 2,282.
There are 2 schools in Harmony; Seneca Valley HS ranks 1st of 2 scored schools there.
Success Index (US) breakdown
Each component is a percentile against high schools across United States.
- Math proficiency (30%)80%
- Reading proficiency (30%)86%
- Community advantage (fewer free/reduced-price lunch) (25%)23.4%
- Students per teacher (15%)13.3
The Success Index (US) summarises published data about a school community. It is not a measure of teaching quality. Read the methodology.
Published measures
All figures published for Seneca Valley HS by the official sources.
- Enrollment
- 2,282
- Students enrolled in the latest NCES directory year.
- Free/reduced-price lunch
- 23.4%
- Share of students eligible for free or reduced-price lunch.
- Students per teacher
- 13.3
- Enrollment divided by FTE teachers; not class size.
- Reading proficiency
- 86%
- Share of tested students proficient or above (all students, all grades).
- Math proficiency
- 80%
- Share of tested students proficient or above (all students, all grades).
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Schools near Seneca Valley HS
Closest schools by straight-line distance, with their Success Index (US).
Ryan Gloyer MS
Harmony · Public middle · Grades 7–8
1,157 students · 362 m away
Connoquenessing Valley El Sch
Zelienople · Public elementary · Grades K–4
714 students · 2.4 km away
Ehrman Crest MS
Cranberry Township · Public middle · Grades 5–6
642 students · 7.5 km away
Ehrman Crest El Sch
Cranberry Township · Public elementary · Grades K–4
837 students · 7.5 km away
Connoquenessing El Sch
Renfrew · Public elementary · Grades K–5
287 students · 8.2 km away
Rowan El Sch
Cranberry Twp · Public elementary · Grades K–4
494 students · 12 km away
Moraine El Sch
Prospect · Public elementary · Grades K–5
349 students · 12 km away
Haine El Sch
Cranberry Twp · Public elementary · Grades K–4
791 students · 13 km away
Haine MS
Cranberry Twp · Public middle · Grades 5–6
522 students · 13 km away
Riverside El Sch
Ellwood City · Public elementary · Grades PK–5
667 students · 13 km away
Similar schools
Public high schools in Pennsylvania with a comparable Enrollment.
Hempfield SHS
Landisville · Public high · Grades 9–12
2,281 students
Conestoga SHS
Berwyn · Public high · Grades 9–12
2,264 students
Norristown Area HS
Norristown · Public high · Grades 9–12
2,256 students
Altoona Area HS
Altoona · Public high · Grades 6–12
2,255 students
Chambersburg Area SHS
Chambersburg · Public high · Grades 9–12
2,319 students
Central HS
Philadelphia · Public high · Grades 9–12
2,329 students
Frequently asked questions
Is Seneca Valley HS a good school?
Seneca Valley HS has a Success Index (US) of 86.1 out of 100 (Top 5% of high schools in United States) and ranks #50 of 618 in Pennsylvania. The index summarises published data about the school community and, where available, attainment; it does not measure teaching quality, so visit the school and ask about support at your child's level.
Where does Seneca Valley HS rank in Pennsylvania?
Seneca Valley HS ranks #50 of 618 high schools in Pennsylvania and #546 of 16,910 nationally on the Success Index (US) (2025 data).
How many students attend Seneca Valley HS?
Seneca Valley HS had 2,282 students in 2025.
Is Seneca Valley HS a elementary school or a high school?
Seneca Valley HS is classified as a high covering Grades 9–12. It is a public school.
What other schools are near Seneca Valley HS?
There are 10 schools within 15 km of Seneca Valley HS; they are listed on this page with their Success Index (US) and distance, and can be compared side by side.