Serving 1,042 students in grades 9-12, Sun Valley High School ranks in the top 50% of all schools in Pennsylvania for overall test scores (math proficiency is top 50%, and reading proficiency is top 50%).
The percentage of students achieving proficiency in math is 39% (which is higher than the Pennsylvania state average of 38%). The percentage of students achieving proficiency in reading/language arts is 60% (which is higher than the Pennsylvania state average of 55%).
The student-teacher ratio of 13:1 is equal to the Pennsylvania state level of 13:1.
Minority enrollment is 22% of the student body (majority Black), which is lower than the Pennsylvania state average of 40% (majority Hispanic).
Quick Facts (2026-27)
- Grades: 9-12
- Enrollment: 1,042 students
- Student-Teacher Ratio: 13:1
- Minority Enrollment: 22%
- Graduation Rate: 97% (Top 5% in PA)
- Overall Testing Rank: Top 50%
- Math Proficiency: 39% (Top 50%)
- Reading Proficiency: 60% (Top 50%)
- Science Proficiency: 43% (Btm 50%)
- Attendance Zone: Sun Valley High School's attendance zone covers the entire district of Aston, PA, encompassing approximately 7.8 square miles. Parents can expect a typical drive to the school of about 5 to 10 minutes, with the furthest edge of the zone located around 3 miles away.
- Source: National Center for Education Statistics (NCES), PA Dept. of Education
Top Rankings
Sun Valley High School ranks among the top 20% of public schools in Pennsylvania for:
Category
Attribute
Graduation Rate
School Overview
Sun Valley High School's student population of 1,042 students has stayed relatively flat over five school years.
The teacher population of 79 teachers has grown by 17% over five school years.
Grades Offered
Grades 9-12
(No virtual instruction)
(No virtual instruction)
Total Students
1,042 students
Total Classroom Teachers
79 teachers
Year Founded
1975
Campus Size
30 acres
School Rankings
Sun Valley High School ranks within the top 50% of all 2,733 schools in Pennsylvania (based off of combined math and reading proficiency testing data).
The diversity score of Sun Valley High School is 0.38, which is less than the diversity score at state average of 0.60. The school's diversity has stayed relatively flat over five school years.
Overall Testing Rank
#1338 out of 2733 schools
(Top 50%)
(Top 50%)
Math Test Scores (% Proficient)
39%
38%
Reading/Language Arts Test Scores (% Proficient)
60%
55%
Science Test Scores (% Proficient)
43%
57%
Student-Teacher Ratio
13:1
13:1
American Indian
n/a
n/a
Asian
3%
5%
Hispanic
5%
16%
Black
9%
14%
White
78%
60%
Hawaiian
n/a
n/a
Two or more races
5%
5%
All Ethnic Groups
Graduation Rate
97%
87%
Chronically Absent Students
(22-23)16.8%
23.3%
Eligible for Free Lunch
36%
59%
Eligible for Reduced Lunch
3%
2%
School Statewide Testing
School District Name
Source: National Center for Education Statistics (NCES), PA Dept. of Education
School Notes
- School Mascot: Griffin
Frequently Asked Questions
What is Sun Valley High School's ranking?
Sun Valley High School is ranked #1338 out of 2,733 schools, which ranks it among the top 50% of public schools in Pennsylvania.
What percent of students have achieved state testing proficiency in math and reading?
39% of students have achieved math proficiency (compared to the 38% PA state average), while 60% of students have achieved reading proficiency (compared to the 55% PA state average).
What is the graduation rate of Sun Valley High School?
The graduation rate of Sun Valley High School is 97%, which is higher than the Pennsylvania state average of 87%.
How many students attend Sun Valley High School?
1,042 students attend Sun Valley High School.
What is the racial composition of the student body?
78% of Sun Valley High School students are White, 9% of students are Black, 5% of students are Hispanic, 5% of students are Two or more races, and 3% of students are Asian.
What is the student-teacher ratio of Sun Valley High School?
Sun Valley High School has a student ration of 13:1, which is equal to the Pennsylvania state average of 13:1.
What grades does Sun Valley High School offer ?
Sun Valley High School offers enrollment in grades 9-12 (No virtual instruction).
What school district is Sun Valley High School part of?
Sun Valley High School is part of Penn-Delco School District.
School Reviews
2 10/10/2025
The freshman dance theme was a RAVE this year,..need I say any more about the poor judgement of the administration?
Review Sun Valley High School. Reviews should be a few sentences in length. Please include any comments on:
- Quality of academic programs, teachers, and facilities
- Availability of music, art, sports and other extracurricular activities
Recent Articles
What Makes an Elementary School Feel Supportive?
Discover what makes one elementary school more supportive than another, from teacher relationships and family communication to classroom attention, belonging, student services, leadership, routines, and responsive academic support systems.
Second School Tour: Questions Parents Forget to Ask
A second school tour can reveal what families miss initially. Learn which questions to ask about teachers, support, schedules, safety, communication, programs, and everyday student life before enrolling.
Attendance Policies Are Changing: Parent Guide 2026
Attendance policies are changing across public schools. Learn what parents should examine about absences, tardiness, interventions, flexibility, communication, and student support before choosing a school for their child today.
