Excellent
#26 of 2,846 schools in PA
Top 1% in state
Garnet Valley HS
High School · Garnet Valley SD
552 Smithbridge Rd, Glen Mills, PA 19342
Enrollment
1,500
Student-Teacher
12.9:1
Score
9.4
Grades
9th – 12th
Enrollment
1,500
Student-Teacher
12.9:1
Score
9.4
Grades
9th – 12th
Data vintage
2022-23
Data vintage2022-23
How this school compares
Pennsylvania schools
#26 of 2,846
In Glen Mills
#1 of 4
public schools
In district
#1 of 5
Garnet Valley SD
Academic growth
9.6 / 10
Excellent
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Garnet Valley HS
High School in Glen Mills · grades 9th – 12th. Start here, then compare fit against nearby and district options.
Garnet Valley MS
0.6 mi away. Use as a geographic alternative in the same move search.
Garnet Valley EL Sch
0.6 mi away. Use as a geographic alternative in the same move search.
About Garnet Valley HS
Garnet Valley HS is a public high school in Glen Mills, PA, part of Garnet Valley SD. Garnet Valley HS serves approximately 1,500 students, and covers grades 9th-12th, and has a 12.9:1 student-teacher ratio. Garnet Valley HS has a current MySchoolScout rating of 9.4 out of 10 and ranks #26 of 2,846 schools in PA.
Structured state assessment records for Garnet Valley HS show 83% math proficiency (multi-year average, 2009-2024) and 89% reading/ELA proficiency (multi-year average, 2009-2024).
What's said publicly about Garnet Valley HS
Synthesized from public, attributable sources. Updated May 2026.
Sources (1)
- This school 9.4 · Excellent
- PA avg 6.6
Score Breakdown
Full Profile · 4/4 metricsView breakdown
View breakdown
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Garnet Valley HS — Students at Garnet Valley HS score 82% proficient, which is above what's typical for similar communities (expected: 67%).
Equity & Diversity
Shown separately, not included in overall scoreFree/Reduced Lunch
15.9%
Students qualifying for federal meal assistance
Test Scores PA PSSA (2023-24)
Based on 26 test records from PA state assessments. About our data
Proficiency Trend
→ StableAverage proficiency (% at or above grade level) across Math & ELA over time.
* COVID-affected year — test participation was uneven nationwide. This data is weighted at 50% in the Growth score calculation.
Source: EdFacts (NCES) and state assessment data. Growth score: 9.6/10.
How Garnet Valley HS Compares
See how Garnet Valley HS performs across key quality dimensions compared to state benchmarks.
Funding & Resources
Programs & Offerings
Data as of 2021-22 · Source: CRDC via Urban Institute · Learn more
Location
552 Smithbridge Rd, Glen Mills, PA 19342
Nearby Alternatives
Families considering Garnet Valley HS may also want to explore other high schools in the area. Concord High School (rated 7.5/10, 2.8 miles away, in nearby Wilmington), a more accessible option. Another option is Brandywine High School (rated 7.1/10, 4.7 miles away, in nearby Wilmington), a more accessible option. Additionally, Delaware County Technical High School - Aston (rated 5.9/10, 2.8 miles away, in nearby Aston), a more accessible option. For more schools in Glen Mills, see our Glen Mills schools guide .
Nearby Schools
20 within 4.7 mi| School | Distance | Rating |
|---|---|---|
| Garnet Valley MS Glen Mills | 0.6 mi | 7.5 |
| Garnet Valley El Sch Glen Mills | 0.6 mi | 7.9 |
| Concord El Sch Glen Mills | 0.9 mi | 8.1 |
| Bethel Springs El Sch Garnet Valley | 1.7 mi | 8.4 |
| ST THOMAS THE APOSTLE SCHOOL Glen Mills | 2.3 mi | 6.4 |
| Concord High School Wilmington | 2.8 mi | 7.5 |
| Lancashire Elementary School Wilmington | 3.0 mi | 6.9 |
| CONCORD CHRISTIAN ACADEMY Wilmington | 3.0 mi | 8.6 |
| CHILDREN'S HOUSE MONTESSORI Wilmington | 3.0 mi | — |
| Delaware County Technical High School - Aston Aston | 2.8 mi | 5.9 |
| Bush (Charles W.) Pre-School Wilmington | 3.4 mi | 3.8 |
| Hanby Elementary School Wilmington | 3.4 mi | 8.9 |
| Talley Middle School Wilmington | 3.4 mi | 8.0 |
| ST CORNELIUS SCHOOL Chadds Ford | 3.0 mi | — |
| THE MALVERN SCHOOL Glen Mills | 4.0 mi | — |
| Aston El Sch Aston | 3.2 mi | 6.7 |
| Forwood Elementary School Wilmington | 4.2 mi | 8.2 |
| ST EDMOND'S ACADEMY Wilmington | 4.4 mi | 7.1 |
| Hilltop El Sch Aston | 3.7 mi | 8.3 |
| Brandywine High School Wilmington | 4.7 mi | 7.1 |
Neighborhood Census ACS (2019-2023)
Census data for ZIP 19342 (ACS 2019-2023 5-Year Estimates) · Data sources
Median Income
$136,647
Median Home Value
$579,400
Median Rent
$2,298/mo
Population
20,654
College Educated
55.4%
Homeownership
72.4%
Avg Commute
27.7 min
Poverty Rate
2.1%
Median Age
46.7
Similar Schools
Schools in the same state with comparable level, size, and ratings
| School | Rating |
|---|---|
| Downingtown STEM Academy Downingtown, PA | 9.4 |
| Plymouth-Whitemarsh SHS Plymouth Meeting, PA | 9.3 |
| Unionville HS Kennett Square, PA | 9.3 |
| Fox Chapel Area HS Pittsburgh, PA | 9.6 |
| Lower Merion HS Ardmore, PA | 9.6 |
| Radnor SHS Radnor, PA | 9.6 |
Frequently Asked Questions
Common questions about Garnet Valley HS
What grades does Garnet Valley HS serve?
Garnet Valley HS serves students in grades 9th through 12th.
How many students attend Garnet Valley HS?
Garnet Valley HS has an enrollment of approximately 1,500 students.
What is the student-teacher ratio at Garnet Valley HS?
The student-teacher ratio at Garnet Valley HS is 12.9:1. A lower ratio generally means more individual attention per student. The national average is approximately 16:1 for public schools.
How does Garnet Valley HS rank in PA?
Garnet Valley HS ranks #26 of 2,846 schools in PA.
What is Garnet Valley HS's MySchoolScout rating?
Garnet Valley HS has a current MySchoolScout rating of 9.4 out of 10. This score combines the level-appropriate components shown in the rating breakdown; equity data is shown separately for context.
What are the test scores at Garnet Valley HS?
Based on loaded state assessment records, Garnet Valley HS has 83% math proficiency (multi-year average, 2009-2024) and 89% reading/ELA proficiency (multi-year average, 2009-2024).
Is Garnet Valley HS a charter school?
No, Garnet Valley HS is not a charter school. It is a traditional public school operated by the local school district.
Is Garnet Valley HS a Title I school?
No, Garnet Valley HS is not currently a Title I school.
What does the Free & Reduced Lunch percentage mean for Garnet Valley HS?
15.9% of students at Garnet Valley HS qualify for free or reduced-price lunch. This is a commonly used indicator of economic need and provides important context when interpreting test scores.
Neighborhood Context
Powered by 
Quick Facts NCES CCD (SY 2022-23)
- Grades
- 9th – 12th
- Enrollment
- 1,500
- Student-Teacher Ratio
- 12.9:1
- Teachers (FTE)
- 116
- Free/Reduced Lunch
- 15.9%
- Type
- regular
- Setting
- Large Suburb
- County
- Delaware County
- Chronic Absenteeism (SY 2022-23)
- 10.8%
- Phone
- (610) 579-7745
- 4-Year Graduation
- 96.0%
Resources & Links
District
Garnet Valley SD- District Enrollment
- 4,473
- Schools in District
- 5
- Per-Pupil Spending
- $22,767
- District Rank
- #1 of 5
Other Schools in This District
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