Enrollment
1,042
Pennsylvania · 2024-25 NCES data
High school (grades 9-12) · Aston, PA
Sun Valley Hs
Federal NCES profile for Sun Valley Hs, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 64/100.
2024-25 NCES dataHigh school (grades 9-12)NCES 421858001915
👥 S:T ratio 44
📚 AP courses 80
🌟 Gifted program 70
🎓 Counselors 58
📋 Attendance 68
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Sun Valley Hs earns 64/100 on the Resource Investment Index, with class sizes near the Pennsylvania median.
- #3 of 6
- public schools in Aston · Resource Index
- 64
- Resource Index · Higher
- 13.9:1
- students per teacher
- 32.7%
- free-lunch eligible
Sun Valley Hs has class sizes near the Pennsylvania median. Computed live against every Pennsylvania school reporting to NCES.
By Resource Investment Index, Sun Valley Hs ranks #3 of 6 public schools in Aston, PA.
School address
District: Penn-Delco Sd · Pennsylvania
NCES ID 421858001915 Verify on NCES CCD record →
Teachers (FTE)
75.0
Federal CCD staff survey
Students per teacher
13.9:1
vs 13.6:1 Pennsylvania avg
+2% vs state
Free-lunch eligible
32.7%
vs 58.1% Pennsylvania avg
-44% vs state
Student-teacher ratio in context
How Sun Valley Hs compares with Pennsylvania and U.S. medians
What stands out at Sun Valley Hs
Sun Valley Hs is a large high school in Aston, Pennsylvania, enrolling 1,042 students.
At 13.9:1, its student-teacher ratio sits close to the Pennsylvania median, within a few percentage points of the 13.6:1 state norm, neither notably crowded nor notably small.
Economic need runs somewhat below the state's typical profile, with 32.7% of students eligible for free meals.
By headcount it is one of the larger campuses in Pennsylvania, bigger than 91% of state schools at 1,042 students.
Its Resource Investment Index outscores 91% of the 2,889 Pennsylvania schools with a score on record, a top-tier result on this measure.
Among 298 similarly sized, similarly resourced-need Pennsylvania schools statewide, it ranks #17, a top-tier result once campus size and economic need are matched.
Its student body is led by White (78%) and African American (10%) (diversity index 38/100).
On the academic-pipeline side it reports 16 Advanced Placement courses.
Counselor coverage is strong, about 208 students per counselor, inside the American School Counselor Association's recommended 250:1.
13.0% of students were chronically absent in the 2021-22 collection, in line with the post-pandemic national range.
The federal civil-rights collection also records 2 expulsions at this campus for 2021-22.
Among Aston's high schools, it stands alongside Delaware County Technical High School-As (80 students): Sun Valley Hs is larger than that campus by headcount and runs heavier classes (13.9:1 vs 4.4:1).
Penn-Delco Sd also operates Northley Ms (748 students) and Pennell El Sch (415 students) alongside Sun Valley Hs.
Sourced from NCES CCD, CRDC, and F-33 (federal records, not a quality verdict). How we source and compute this.
Source: National Center for Education Statistics Common Core of Data + CRDC + F-33 · 2024-25
How Sun Valley Hs compares
Sun Valley Hs on the metrics families compare, against Pennsylvania and U.S. means.
| Metric | This school | vs Pennsylvania | Pennsylvania avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 13.9:1 | ▲ 2% | 13.6:1 | 15.7:1 |
| Free-lunch eligible | 32.7% | ▼ 44% | 58.1% | 51.7% |
| Enrollment | 1,042 | top 9% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
13.9:1
Leaner classes than 58% of US schools, a middle-of-the-pack class size.
1,042
Bigger than 92% of US schools by enrollment, a large campus nationally.
Equity indicators (what these measure)
Economic need
32.7%
free-lunch eligible
- 44% below the Pennsylvania average of 58.1%
Below the 40% Title I threshold; federal aid targets individual qualifying students rather than schoolwide programs.
Staffing depth
13.9:1
students per teacher
- 2% above state mean
Top 60% in Pennsylvania - lower ratio than 40% of state schools
Close to the 15:1 benchmark most often cited for individualized attention.
Engagement
13.0%
chronically absent (missed 10%+ of school days)
In the 10-15% range, above the pre-pandemic national baseline but within the broader post-pandemic picture.
Funding equity
$16,582
per pupil, district-wide
- below Pennsylvania avg of $17,970
Close to the U.S. public-school average per-pupil spend.
Support staff
Counselors5.0 FTE
Per 208 students, the combined health-and-guidance staffing load for this school.
Discipline context
56
in-school suspensions + 107 out-of-school
Suspension rate: 5.4 per 100 students. Combined in-school and out-of-school rate: 15.6 per 100 students. Reported via the Civil Rights Data Collection. Includes 2 expulsions.
Overview
- Common Core of Data (June 2026): enrollment, staffing, and the student-teacher ratio above.
- Civil Rights Data Collection: discipline counts and program access (AP, gifted, special education).
- F-33 School District Finance Survey: the district-wide per-pupil spending figures below.
Three separate federal collections, each on its own reporting cadence - which is why this school's numbers line up on a consistent basis against every other school and state on this site, rather than mixing figures pulled from different survey years.
Student demographics
White 77.8%
African American 9.6%
Hispanic or Latino 4.8%
Two or More 4.8%
Asian 2.7%
Native Hawaiian / Pacific Islander 0.2%
American Indian / Alaska Native 0.1%
Largest group: White at 77.8% of enrollment.
Student-body diversity index 38.0/100
Simpson diversity index - at 38.0, Sun Valley Hs is about as mixed as the Pennsylvania school average of 37.3.
Programs
AP courses offered 16
Gifted & talented Yes
Funding & spending
District-wide per-pupil expenditure for Penn-Delco Sd, which includes Sun Valley Hs.
$16,582
Per student
-8%
vs Pennsylvania
Avg $17,970
0%
vs U.S.
Avg $16,593
Revenue mix
Local 69.5%
State 25.7%
Federal 4.8%
Source: NCES F-33 School District Finance Survey District-level finance · FY 2021-22 Per-pupil expenditure reflects the district-wide average. Individual school budgets are not reported at the federal level.
How Sun Valley Hs Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Northley Ms | Smaller | Similar economic need | Similar S:T ratio |
| Pennell El Sch | Smaller | Similar economic need | Similar S:T ratio |
| Aston El Sch | Smaller | Similar economic need | Similar S:T ratio |
| Coebourn El Sch | Smaller | Similar economic need | Lower S:T ratio |
| Parkside El Sch | Smaller | Higher economic need | Similar S:T ratio |
Comparisons are relative to Sun Valley Hs's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 748
- Students per teacher
- 14.4:1
- Resource Index
- 61/100
- Enrollment
- 415
- Students per teacher
- 14.8:1
- Resource Index
- 55/100
- Enrollment
- 405
- Students per teacher
- 13.5:1
- Resource Index
- 56/100
- Enrollment
- 319
- Students per teacher
- 11.8:1
- Resource Index
- 62/100
- Enrollment
- 252
- Students per teacher
- 14:1
- Resource Index
- 63/100
Similar high schools in Aston
1 comparable high schools (grades 9-12) serving the same city.
Similar high schools statewide
Matched by enrollment size and by staffing ratio across all of Pennsylvania, not just this city - a different peer set than the local comparisons above.
Similar enrollment (~1,042 students)
Similar student-teacher ratio (~13.9:1)
Next steps
Verify locally before acting on Sun Valley Hs's federal record.
- Compare Sun Valley Hs against another school. Compare schools
- Penn-Delco Sd's spending and staffing shape this school. District profile
- Confirm current enrollment and boundaries with the school. Choosing guide
Federal record (CCD 2024-25, CRDC 2021-22) - PlainSchools assigns no subjective rating; the composite quality score is a transparent, reproducible index computed from this cited federal data.
Frequently asked questions about Sun Valley Hs
How many students attend Sun Valley Hs?
Sun Valley Hs has 1,042 students enrolled. It is a high school in Aston, PA.
What is the student-teacher ratio at Sun Valley Hs?
The student-teacher ratio at Sun Valley Hs is 13.9:1, which is 2% higher than the Pennsylvania average of 13.6:1 and 11% lower than the national average of 15.7:1.
What percentage of students receive free lunch at Sun Valley Hs?
32.7% of students at Sun Valley Hs are eligible for free lunch, compared to the Pennsylvania average of 58.1%.
What is the racial and ethnic makeup of Sun Valley Hs?
The largest demographic group at Sun Valley Hs is White at 77.8% of enrollment, in Aston, PA.
What is the Resource Investment Index for Sun Valley Hs?
Sun Valley Hs has a Resource Investment Index of 64/100 (higher reported resources relative to schools nationally) based on 5 factors: student-teacher ratio, AP course offerings, counselor availability, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Sun Valley Hs rank among public schools in Aston?
By Resource Investment Index, Sun Valley Hs ranks #3 of 6 public schools in Aston, PA. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all public schools in Aston on the city page.
Is Sun Valley Hs a good school?
Sun Valley Hs earns 64/100 on the Resource Investment Index, with class sizes near the Pennsylvania median. This is a resource snapshot, not an academic rating; see the Resource Investment Index question above for what the number does and doesn't measure.
What other schools are in Penn-Delco Sd?
Besides Sun Valley Hs, Penn-Delco Sd also operates Northley Ms (748 students), Pennell El Sch (415 students), and Aston El Sch (405 students). See the Penn-Delco Sd district page for the complete list.
Related tools
Every figure on PlainSchools is rendered directly from the source NCES, CRDC and F-33 federal records, no number is typed in by an editor. Each school's figures reflect its most recent NCES/CRDC submission on file. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of June 2026.