Average
#980 of 1,363 schools in MD
Dulaney High
High School · Baltimore County Public Schools
255 E Padonia Road, Timonium, MD 21093
Enrollment
1,845
Student-Teacher
16.6:1
Score
5.5
Grades
9th – 12th
Enrollment
1,845
Student-Teacher
16.6:1
Score
5.5
Grades
9th – 12th
Updated
2022-23
Updated 2022-23
How this school compares
In Timonium
#5 of 5
public schools
Maryland high schools
#85 of 226
In district
#108 of 169
Baltimore County Public Schools
About Dulaney High
Dulaney High serves 1,845 students in grades 9-12 in Timonium, Maryland, operating as a large suburban public high school with a student-teacher ratio of 16.6:1. With 111 full-time equivalent teachers on staff, the school provides a comprehensive high school experience in Baltimore County. Academically, Dulaney High demonstrates solid performance with an 8.1 academic score and ranks in the 71st percentile statewide at #401 out of 1,364 Maryland schools.
Students show balanced achievement across core subjects, with 53% reaching proficiency in math and 50% in English Language Arts and reading. These results reflect the school's commitment to preparing students across a range of academic abilities. The school draws from an affluent community where families are deeply invested in education.
The surrounding 21093 ZIP code boasts a median household income of $120,947 and a remarkably low poverty rate of just 4.2%. With 67% of local residents holding bachelor's degrees or higher and median home values of $451,400, the area reflects strong educational values and resources. Located on East Padonia Road, Dulaney High sits in the heart of Timonium's thriving suburban landscape, serving families in one of Baltimore County's most established and prosperous communities.
Score Breakdown
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Dulaney High — Students at Dulaney High score 46% proficient, which is below what's typical for similar communities (expected: 54%).
Equity & Diversity
Shown separately, not included in overall scoreFree/Reduced Lunch
31.5%
Students qualifying for federal meal assistance
Test Scores MD MCAP (2024-25)
Based on 8 test records from MD state assessments. About our data
Proficiency Trend
↓ DecliningAverage 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: 2.2/10.
How Dulaney High Compares
See how Dulaney High performs across key quality dimensions compared to state benchmarks.
Funding & Resources
Performance Trends
Math proficiency has declined from 64% (2019) to 29.4% (2025). Reading/ELA proficiency has declined from 77% (2019) to 63.6% (2025).
Location
255 E Padonia Road, Timonium, MD 21093
Nearby Alternatives
Families considering Dulaney High may also want to explore other high schools in the area. NOTRE DAME PREPARATORY SCHOOL (rated 7.0/10, 3.7 miles away, in nearby Towson), which scores notably higher. Additionally, George W. Carver Center for Arts & Technology (rated 5.5/10, 3.5 miles away, in nearby Towson), with a very similar rating. For more schools in Timonium, see our Timonium schools guide .
Nearby Schools
20 within 4.0 mi| School | Distance | Rating |
|---|---|---|
| Pot Spring Elementary Timonium | 0.5 mi | 8.2 |
| Warren Elementary Cockeysville | 0.9 mi | 6.6 |
| Padonia International Elementary Cockeysville | 1.1 mi | 5.6 |
| VILLA MARIA SCHOOL Timonium | 1.1 mi | 7.2 |
| Cockeysville Middle Cockeysville | 1.3 mi | 5.0 |
| Timonium Elementary Timonium | 1.5 mi | 8.6 |
| APPLE TREE CHILDREN'S CENTER Cockeysville | 1.5 mi | 6.5 |
| ST JOSEPH'S SCHOOL Cockeysville | 1.5 mi | 5.1 |
| HAVENWOOD CHURCH PRESCHOOL CENTER Lutherville | 2.0 mi | — |
| Ridgely Middle Lutherville | 2.0 mi | 6.1 |
| Pinewood Elementary Timonium | 1.8 mi | 7.3 |
| Lutherville Laboratory Lutherville | 2.4 mi | 7.1 |
| LOTS OF LOVE DAYCARE AND SCHOOL Lutherville | 2.8 mi | — |
| VALLEY BAPTIST PRESCHOOL Lutherville | 2.9 mi | — |
| Hampton Elementary Lutherville | 3.1 mi | 6.0 |
| SHEPPARD PRATT SCHOOL Hunt Valley | 3.0 mi | 7.7 |
| George W. Carver Center for Arts & Technology Towson | 3.5 mi | 5.5 |
| Mays Chapel Elementary Timonium | 3.0 mi | 5.8 |
| NOTRE DAME PREPARATORY SCHOOL Towson | 3.7 mi | 7.0 |
| IMMACULATE CONCEPTION SCHOOL Towson | 4.0 mi | 4.9 |
Neighborhood Census ACS (2019-2023)
Census data for ZIP 21093 (ACS 2019-2023 5-Year Estimates) · Data sources
Median Income
$121,771
Median Home Value
$466,200
Median Rent
$1,581/mo
Population
38,895
College Educated
67.9%
Homeownership
78.7%
Avg Commute
24.4 min
Poverty Rate
5%
Median Age
46.1
Community Profile
The community surrounding Dulaney High has a median household income of $121,771. It is a well-educated community where 68% of adults hold a bachelor's degree or higher. The median home value in the area is $466,200, with a median rent of $1,581/month. The local poverty rate of 5.0% is relatively low. The average commute for residents is 24 minutes. Source: U.S. Census ACS 2022 5-Year Estimates.
Similar Schools
Schools in the same state with comparable level, size, and ratings
| School | Rating |
|---|---|
| North Hagerstown High Hagerstown, MD | 5.5 |
| Poolesville High Poolesville, MD | 5.5 |
| River Hill High Clarksville, MD | 5.5 |
| Severna Park High Severna Park, MD | 5.5 |
| Walt Whitman High Bethesda, MD | 5.5 |
| Bel Air High Bel Air, MD | 5.6 |
Frequently Asked Questions
Common questions about Dulaney High
What grades does Dulaney High serve?
Dulaney High serves students in grades 9th through 12th.
How many students attend Dulaney High?
Dulaney High has an enrollment of approximately 1,845 students.
What is the student-teacher ratio at Dulaney High?
The student-teacher ratio at Dulaney High is 16.6:1. A lower ratio generally means more individual attention per student. The national average is approximately 16:1 for public schools.
How does Dulaney High rank in MD?
Dulaney High is ranked #980 out of 1,363 schools in MD.
What is Dulaney High's MySchoolScout rating?
Dulaney High has a composite rating of 5.5 out of 10 on MySchoolScout. This score combines academic performance, student growth, and school environment into a single score. Equity data is shown separately for context.
What are the test scores at Dulaney High?
Based on the most recent state assessment data, Dulaney High has 47.4% math proficiency and 65.4% reading/ELA proficiency.
Is Dulaney High a charter school?
No, Dulaney High is not a charter school. It is a traditional public school operated by the local school district.
Is Dulaney High a Title I school?
No, Dulaney High is not currently a Title I school.
What does the Free & Reduced Lunch percentage mean for Dulaney High?
31.5% of students at Dulaney High 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
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FBI UCR. County-level only.
Quick Facts NCES CCD (SY 2022-23)
- Grades
- 9th – 12th
- Enrollment
- 1,845
- Student-Teacher Ratio
- 16.6:1
- Teachers (FTE)
- 111
- Free/Reduced Lunch
- 31.5%
- Type
- regular
- Setting
- Large Suburb
- County
- Baltimore County
- Phone
- (443) 809-7633
- Data Year
- 2023–2024
Resources & Links
District
Baltimore County Public Schools- District Enrollment
- 110,275
- Schools in District
- 179
- Per-Pupil Spending
- $18,666
- District Rank
- #108 of 169
Other Schools in This District
How We Rate Schools
Every school receives a composite score from 1 to 10 based on four pillars: Academic Performance (50%), Student Growth (20%), Equity (15%), and Learning Environment (15%). Scores are built from publicly available data including standardized test results, enrollment figures, and school climate indicators.
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