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How has Sun Valley HS changed in the last five years, for better or worse?
Community prompt from u/allk12. Replies below.
Enrollment
1,042
High
DISTRICT 530 · STATE 738
SCHOOL COMMUNITY·PENN-DELCO SD·NCES 421858001915
Sun Valley High School
2881 Pancoast Ave, Aston, PA 19014 · (610) 497-6300 · Delaware County
GRADES 09–12HIGH21-SUBURBREGULAR SCHOOL1,042 STUDENTS
C+
allk12 Grade
Scored higher than 40% 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.
- CBeats 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
Student : Teacher
13.2:1
79 FTE teachers
DISTRICT 13.2:1 · STATE 12.8:1
Free / Reduced Lunch
39%
405 students
DISTRICT 39% · 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
| Grade | Students | Share |
|---|---|---|
| Grade 9 | 256 | 25% |
| Grade 10 | 260 | 25% |
| Grade 11 | 234 | 22% |
| Grade 12 | 292 | 28% |
Student demographics
38%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 38% · STATE 59% · US 70%
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
School pathway
Feeds from
Based on grade levels within Penn-Delco SD. Attendance zones can vary; confirm enrollment with the district.
Test scores
PSSA + Keystone 2024-25 . % Proficient or AdvancedEnglish Language Arts
65.8%
PA avg 51.1% . -0.9pp since 2023
Math
39.7%
PA avg 43.0% . +0.4pp since 2023
What this means: On the PSSA + Keystone, Pennsylvania's statewide test, about 66 of every 100 students at this school read and write at grade level and about 40 of 100 do math at grade level. Across all Pennsylvania schools, those numbers are about 51 and 43. Reading and writing scores have held steady since 2023, while math scores have held steady.
PSSA + Keystone results by year
| School year | English Language Arts | Math |
|---|---|---|
| 2024-25 | 65.8% | 39.7% |
| 2023-24 | 66.7% | 39.3% |
% 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 · methodologyTier
AS EXPECTED
Performing as predicted given the school's student profile
Actual proficiency
51.6%
composite math + reading, all grades
Predicted
61.0%
based on PA schools with similar FRL share
Beats by
-9.3pp
below demographic expectation
What this means: About 52% of students here test proficient in math and reading, compared with the roughly 61% 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 Sun Valley High School
Sun Valley High School's state test result (51.6% proficient) is higher than 0 of the 5 schools below with a result.
| School | Students | Low-income | Proficient |
|---|---|---|---|
| Sun Valley High School this school | 1,042 | 38.9% | 51.6% |
| Daniel Boone Area High School Birdsboro | 940 | 39.5% | 56.5% |
| Upper Perkiomen High School Pennsburg | 1,021 | 35.5% | 64.1% |
| Elizabethtown Area SHS Elizabethtown | 1,263 | 37.9% | 57.7% |
| Spring Grove Area High School Spring Grove | 1,163 | 38.9% | 61.5% |
| Greencastle-Antrim SHS Greencastle | 982 | 38.4% | 60.5% |
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 Sun Valley High School ranks
Among high schools| Measure | This school | In Pennsylvania | In Delaware County |
|---|---|---|---|
| State test proficiency ranked highest first | 51.6% | #278 of 576 | #9 of 14 |
| Math proficiency ranked highest first | 39.7% | #303 of 626 ▼ 8 | #9 of 16 no change |
| Reading proficiency ranked highest first | 65.8% | #219 of 626 ▲ 4 | #8 of 16 ▼ 1 |
| Enrollment ranked largest first | 1,042 | #165 of 713 | #13 of 19 |
| Students per teacher ranked fewest first | 13.2:1 | #242 of 601 | #6 of 17 |
| Diversity index ranked most diverse first | 38.0% | #236 of 604 | #10 of 17 |
| Free and reduced lunch ranked highest share first | 38.9% | #470 of 619 | #10 of 17 |
| Enrollment change since 2017-18 ranked steepest decline first | -3.5% | #311 of 373 | #6 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 2024-25Enrollment
1,042
-9 (-1%) vs 2020
+13% since 1990-91, when it was 924
Student : Teacher
13.2:1
was 15.7:1
Source: NCES Common Core of Data
Enrollment and staffing by year
| School year | Students | Teachers (FTE) | Students per teacher | Free and reduced lunch |
|---|---|---|---|---|
| 2024-25 | 1,042 | 78.8 | 13.2:1 | 39% (405) |
| 2023-24 | 1,056 | 75.8 | 13.9:1 | 38% (405) |
| 2022-23 | 1,070 | 75.8 | 14.1:1 | 34% (367) |
| 2020-21 | 1,051 | 67 | 15.7:1 | 27% (283) |
| 2017-18 | 1,080 | 69.8 | 15.5:1 | N/A |
| 2015-16 | 1,063 | 68 | 15.6:1 | 25% (270) |
| 2010-11 | 1,124 | 72 | 15.6:1 | 18% (207) |
| 2000-01 | 1,059 | 58 | 18.3:1 | 0% (0) |
| 1990-91 | 924 | 56 | 16.5:1 | N/A |
Source: NCES Common Core of Data. Rows are the federal collections on file for Sun Valley High School.
Since 2017-18: students down 4% (1,080 to 1,042); teachers up 13% (69.8 to 78.8).
About Sun Valley High School
Families in Aston, Pennsylvania, are served by Sun Valley High School, a medium-sized high school. A total of 1,042 students attend the school, which covers grades 9 through 12. The average for high schools in Pennsylvania is about 738 students, so this school is 41% above average.
Penn-Delco SD serves 3,181 students across 6 schools.
By race and ethnicity, Sun Valley High School is 78% White. The rest of enrollment is 10% Black, 5% Hispanic, 5% multiracial, and 3% Asian. Census estimates put the White share of Delaware County's population at about 63%. Sun Valley High School has a diversity index of 38%, compared with 70% for all US public school students.
With 78.8 full-time-equivalent teachers in 2024-25, the ratio at Sun Valley High School was 13.2:1. Across high schools in Pennsylvania, the average ratio is about 12.8:1. A measure often used for student poverty, free or reduced-price lunch eligibility, stands at 39%. By comparison, the figure for public schools in Delaware County is 58%.
allk12 grades Sun Valley High School a C+. The grade compares the school only with Pennsylvania public high schools, because each state gives its own test.
On a poverty-adjusted basis, Sun Valley High School falls in the middle 80% of Pennsylvania schools: 51.6% actual against 61.0% predicted.
Delaware County has these Census figures: median household income is about $89,546, a bachelor's degree or higher is held by about 42% of adults, and the poverty rate is about 7%. The public schools of Delaware County number 113 and enroll about 74,663.
Of nearby public schools, Northley Middle School is the closest, at about 0.2 miles. Inside a five-mile radius, there are at least 8 other public schools. Nearby schools with test data average 42.0% proficiency; Sun Valley High School posts 51.6%.
On the NCES locale scale, the school is Suburb: Large.
Enrollment went from 1,051 in 2020-21 to 1,042 in 2024-25, a change of 9 students. The ratio of students to teachers went from 15.7:1 to 13.2:1 over the same years.
The Sun Valley High School community page is open for posts about enrollment questions, class placement, and PTA news. Anyone with firsthand experience at this school can post or comment.
Delaware County at a glance
View full county profilePopulation
579,222
Census ACS
Median income
$89,546
Household, ACS
Bachelor's+
42%
Adults 25+
Poverty rate
7%
Below federal line
Schools in county
113
74,663 students
Quick facts
Related schools
Other schools in Penn-Delco SD
- Northley Middle SchoolMiddle · 748 students
- Pennell Elementary SchoolElementary · 415 students
- Aston Elementary SchoolElementary · 405 students
- Coebourn Elementary SchoolElementary · 319 students
- Parkside Elementary SchoolElementary · 252 students
Other schools in Aston
- Northley Middle SchoolMiddle · 748 students
- Pennell Elementary SchoolElementary · 415 students
- Aston Elementary SchoolElementary · 405 students
- Hilltop Elementary SchoolElementary · 290 students
- Delaware County Technical High School - AstonHigh · 80 students
Other Sun Valley High schools
2 other US public schools in 3 states are named Sun Valley High. Sun Valley High School is the 2nd largest of the 3.
- Sun Valley HighMonroe, NC · 1,272 students
- Sun Valley High SchoolMESA, AZ · 345 students
Nearby schools
- Northley Middle School0.2 mi · 748
- Pennell Elementary School0.8 mi · 415
- Hilltop Elementary School1.2 mi · 290
- Toby Farms Intermediate School1.3 mi · 359
- Coebourn Elementary School1.6 mi · 319
- Aston Elementary School1.6 mi · 405
Frequently asked questions
About Sun Valley High SchoolWhat is the total enrollment at Sun Valley High School?
Sun Valley High School enrolls approximately 1,042 students in grades 09-12.
What age range does Sun Valley High School serve?
Sun Valley High School serves students from grade 09 through grade 12.
How many teachers does Sun Valley High School have?
Sun Valley High School employs 79 FTE teachers, for a student-to-teacher ratio of 13.2:1.
What is the student diversity at Sun Valley High School?
Student demographics at Sun Valley High School are roughly 78% White, 5% Hispanic, 10% Black, 3% Asian, 5% Two or more.
Is Sun Valley High School public or private?
Sun Valley High School is a public K-12 school, overseen by Penn-Delco SD.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.