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SCHOOL COMMUNITY·SENECA VALLEY SD·NCES 422244007521

Seneca Valley High School

128 Seneca School Rd, Harmony, PA 16037 · (724) 452-6041 · Butler County
GRADES 09–12HIGH41-RURALREGULAR SCHOOL2,282 STUDENTS
B-
allk12 Grade
Scored higher than 47% of Pennsylvania public high schools
  • B+Test scores Share of students meeting the state standard in reading, math, and other tested subjects, 2023-24 and 2024-25.
  • C-Beats expectations How far test scores land above or below what the share of low-income students predicts for a school in this state.
  • ·Three-year trend Not available for this school, so the grade uses the other parts.

Grades compare a school only with schools in the same state, because every state gives its own test. How grades work · Top-graded Pennsylvania public high schools

Enrollment
2,282
High
DISTRICT 930 · STATE 738
Student : Teacher
13.2:1
173 FTE teachers
DISTRICT 13.2:1 · STATE 12.8:1
Free / Reduced Lunch
23%
535 students
DISTRICT 22% · STATE 75%
Community
1
0 members
Enrollment and student:teacher ratio compared against other high schools. Free/Reduced Lunch and demographics compared against all schools.

Enrollment by grade, 2024-25

GradeStudentsShare
Grade 954224%
Grade 1056725%
Grade 1159926%
Grade 1257425%
Student demographics
24%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 27% · STATE 59% · US 70%
White
1,97887%
DISTRICT 85% · STATE 60% · US 43%
Hispanic
974%
DISTRICT 5% · STATE 16% · US 30%
Black
372%
DISTRICT 2% · STATE 14% · US 15%
Asian
673%
DISTRICT 3% · STATE 5% · US 6%
Two+
1035%
DISTRICT 5% · STATE 5% · US 5%
Student head counts by race/ethnicity from federal NCES enrollment data. District, state, and US figures are each group's share of all public school students in that area (US excludes territories). Very small groups may be suppressed in the source, so categories do not always sum exactly to total enrollment.
Gender split
Male
1,15250%
Female
1,13050%

School pathway

Feeds from
Ryan Gloyer Middle School07–08
Based on grade levels within Seneca Valley SD. Attendance zones can vary; confirm enrollment with the district.

Discussions

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Test scores

PSSA + Keystone 2024-25 . % Proficient or Advanced
English Language Arts
61.5%
PA avg 51.1% . -3.8pp since 2023
Math
48.7%
PA avg 43.0% . +8.1pp since 2023

What this means: On the PSSA + Keystone, Pennsylvania's statewide test, about 62 of every 100 students at this school read and write at grade level and about 49 of 100 do math at grade level. Across all Pennsylvania schools, those numbers are about 51 and 43. Reading and writing scores are down about 4 points since 2023, while math scores are up about 8 points.

PSSA + Keystone results by year

School yearEnglish Language ArtsMath
2024-2561.5%48.7%
2023-2465.3%40.6%
% Proficient or Advanced, all students and all tested grades.
Source: PSSA + Keystone. All students, all grades. See all years and grades →

BeatsExpectations

Demographically-adjusted score · methodology
Tier
AS EXPECTED
Performing as predicted given the school's student profile
Actual proficiency
56.5%
composite math + reading, all grades
Predicted
67.6%
based on PA schools with similar FRL share
Beats by
-11.1pp
below demographic expectation

What this means: About 56% of students here test proficient in math and reading, compared with the roughly 68% typical for Pennsylvania schools with a similar share of low-income students. BeatsExpectations measures results against demographically similar schools rather than by raw scores, and this school falls within the typical range, neither among Pennsylvania's top nor bottom 10%.

BeatsExpectations runs a per-state regression of proficiency on free/reduced-lunch share, then scores each school by residual. How this is calculated →

Schools most like Seneca Valley High School

Seneca Valley High School's state test result (56.5% proficient) is higher than 0 of the 5 schools below with a result.

SchoolStudentsLow-incomeProficient
Seneca Valley High School this school2,28223.4%56.5%
Pennridge High School
Perkasie
2,12527.8%60.5%
Boyertown Area SHS
Boyertown
2,05230.2%62.6%
Haverford SHS
Havertown
1,99421.4%79.6%
Canon-McMillan SHS
Canonsburg
1,66030.4%62.8%
Perkiomen Valley High School
Collegeville
1,61622.1%72.3%
Matched among Pennsylvania high schools on enrollment, the share of students from low-income families (eligible for free or reduced-price lunch), and racial and ethnic makeup. Proficient is the average share of students meeting the state standard across all of the school's state tests in 2023-24 and 2024-25, the same combined score our test-score rankings use. Online schools and schools serving specialized populations are not matched.

Where Seneca Valley High School ranks

Among high schools
MeasureThis schoolIn PennsylvaniaIn Butler County
State test proficiency
ranked highest first
56.5%#211 of 576#4 of 7
Math proficiency
ranked highest first
48.7%#209 of 626
▲ 69
#4 of 8
▲ 1
Reading proficiency
ranked highest first
61.5%#280 of 626
▼ 23
#4 of 8
no change
Enrollment
ranked largest first
2,282#24 of 713#1 of 10
Students per teacher
ranked fewest first
13.2:1#240 of 601#5 of 8
Diversity index
ranked most diverse first
24.4%#338 of 604#1 of 8
Free and reduced lunch
ranked highest share first
23.4%#573 of 619#7 of 8
Enrollment change since 2017-18
ranked steepest decline first
-2.2%#332 of 373#7 of 7
Ranked against other public high schools. Online schools are left out of every list, and test-score lists leave out schools that serve specialized populations. Each rank links to the full list. Arrows under a test-score rank show places moved since the prior test year, among schools tested both years.

4-year change

SY 2020-21 vs SY 2024-25
Enrollment
2,282
-59 (-3%) vs 2020
Student : Teacher
13.2:1
was 12.7:1
Source: NCES Common Core of Data

Enrollment and staffing by year

School yearStudentsTeachers (FTE)Students per teacherFree and reduced lunch
2024-252,282172.813.2:123% (535)
2023-242,294171.213.4:123% (535)
2022-232,307169.113.7:118% (426)
2020-212,34118512.7:116% (365)
2017-182,333164.314.2:116% (363)
2015-162,33616314.3:116% (376)
Source: NCES Common Core of Data. Rows are the federal collections on file for Seneca Valley High School.

Since 2017-18: students down 2% (2,333 to 2,282); teachers up 5% (164.3 to 172.8).

About Seneca Valley High School

A large high school in Harmony, Pennsylvania, Seneca Valley High School is part of Seneca Valley SD. Its enrollment is 2,282 students, spread over grades 9 through 12. Across high schools in Pennsylvania, the average enrollment is about 738.

Seneca Valley High School is one school in an 8-school district, Seneca Valley SD, which enrolls 7,439 students.

At Seneca Valley High School, 87% of students are White. Smaller groups are 5% multiracial, 4% Hispanic, and 3% Asian. On the diversity index, which measures the chance that two random students are from different groups, Seneca Valley High School scores 24%.

Seneca Valley High School has 172.8 full-time-equivalent teachers, for a student-to-teacher ratio of about 13.2:1. The ratio is within a point of the 12.8:1 average for high schools in Pennsylvania. Eligibility for free or reduced-price lunch, often used to gauge student poverty, is 23%. On average, public schools in Butler County report 37%.

Seneca Valley High School holds a B- allk12 Grade, placing it above 47% of Pennsylvania public high schools.

The model predicts 67.6% for a school in Pennsylvania with Seneca Valley High School's free or reduced-price lunch share. Seneca Valley High School posts 56.5%.

In the surrounding county, Butler County, the median household earns about $89,843 a year, 39% of adults hold a bachelor's degree or higher, and about 5% of people live in poverty. Butler County has 39 public schools with about 24,616 students, including Seneca Valley High School.

Measured in a straight line, Ryan Gloyer Middle School is about 0.2 miles from Seneca Valley High School. The five-mile area around Seneca Valley High School holds 4 other public schools. Seneca Valley High School comes in 8th of 9 nearby schools on average proficiency.

Locale: Rural: Fringe. In NCES terms, the school is in rural territory close to an urban area.

From 2,341 students in 2020-21, enrollment decreased to 2,282 by 2024-25.

This page is set up for the Seneca Valley High School community to discuss open houses, carpools, and field trips. Members of the school community can share what they know.

Butler County at a glance

View full county profile
Population
197,254
Census ACS
Median income
$89,843
Household, ACS
Bachelor's+
39%
Adults 25+
Poverty rate
5%
Below federal line
Schools in county
39
24,616 students

Quick facts

School name
Seneca Valley High School
District
Seneca Valley SD
Address
128 Seneca School Rd, Harmony, PA 16037
Phone
(724) 452-6041
County
Butler County
Level
High
Grade range
09–12
Total enrollment
2,282
Teachers (FTE)
173
Student–teacher ratio
13.2:1
Free and reduced lunch
535 (23%)
Locale
41-Rural: Fringe
NCES ID
422244007521
Charter school
No
Virtual school
No

Related schools

Other schools in Seneca Valley SD
Other schools in Harmony
Other Seneca Valley High schools

One other US public school is named Seneca Valley High. Seneca Valley High School is the 2nd largest of the 2.

Nearby schools

Frequently asked questions

About Seneca Valley High School
How many students attend Seneca Valley High School?
Seneca Valley High School enrolls approximately 2,282 students in grades 09-12.
What grades does Seneca Valley High School serve?
Seneca Valley High School serves grades 09-12.
What is the student-teacher ratio at Seneca Valley High School?
The student-to-teacher ratio at Seneca Valley High School is approximately 13.2:1 (173 FTE teachers).
What is the racial breakdown of students at Seneca Valley High School?
At Seneca Valley High School, the student body is approximately 87% White, 4% Hispanic, 2% Black, 3% Asian, 5% Two or more.
Who oversees Seneca Valley High School?
Seneca Valley High School is overseen by Seneca Valley SD in Butler County.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.
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