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SCHOOL COMMUNITY·BALTIMORE COUNTY PUBLIC SCHOOLS·NCES 240012000373

Dulaney High

255 E Padonia Road, Timonium, MD 21093 · (443) 809-7633 · Baltimore County
GRADES 09–12HIGH21-SUBURBREGULAR SCHOOL1,889 STUDENTS
Enrollment
1,889
High
DISTRICT 1,070 · STATE 1,185
Student : Teacher
18.0:1
105 FTE teachers
DISTRICT 14.9:1 · STATE 15.3:1
Free / Reduced Lunch
33%
628 students
DISTRICT 55% · STATE 54%
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
Grade 9
509
Grade 10
483
Grade 11
439
Grade 12
458
Student demographics
White
42%
DISTRICT 29% · STATE 31%
Hispanic
21%
DISTRICT 18% · STATE 24%
Black
21%
DISTRICT 40% · STATE 32%
Asian
12%
DISTRICT 7% · STATE 7%
Two+
4%
DISTRICT 5% · STATE 5%
Native American
n/r
Pacific Islander
n/r
n/r: not reliably reported by NCES for this school. Hispanic, Pacific Islander, and Native American enrollment are systematically under-reported in the source data.
Gender split
Male
51%
Female
49%

Discussions

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Test scores

MCAP 2024-25 . % Proficient (Levels 3-4)
English Language Arts
63.5%
MD avg 50.6% . -0.2pp since 2023
Math
10.0%
MD avg 34.8% . +0.0pp since 2023
Source: MCAP. All students, all grades. See all years and grades →

BeatsExpectations

Demographically-adjusted score · methodology
Tier
UNDERPERFORMING
Bottom 10% of MD schools after controlling for student poverty
Actual proficiency
36.8%
composite math + reading, all grades
Predicted
54.5%
based on MD schools with similar FRL share
Beats by
-17.7pp
below demographic expectation
BeatsExpectations runs a per-state regression of proficiency on free/reduced-lunch share, then scores each school by residual. How this is calculated →

7-year change

SY 2017-18 vs SY 2024-25
Enrollment
1,889
+87 (+5%) vs 2017
Student : Teacher
18.0:1
was 17.5:1
% White
42%
was 55%
% Hispanic
21%
was 9%
% Black
21%
was 20%
% Asian
12%
was 14%
Source: NCES Common Core of Data

About Dulaney High

Dulaney High is a 9-12 campus of big scale in Timonium, Maryland, operated by Baltimore County Public Schools, serveing 1,889 students in grades 9 through 12. Enrollment runs roughly 59% above the state mean of about 1,185.

Dulaney High is one of 177 schools operated by Baltimore County Public Schools, a district that hosts 110,872 students overall.

On the student-mix side, Dulaney High records that 42% of students identify as White, with the remaining enrollment distributed across several groups; the rest comes out to 21% Hispanic, 21% Black, 12% Asian, 4% multiracial. By comparison, Baltimore County as a whole is about 53% White, so the school skews meaningfully less White than its surroundings.

In terms of school funding signals, On paper, Dulaney High has 105 full-time-equivalent teachers, translating to a class-load average of around 18.0:1. Statewide, the average ratio sits near 15.3:1, putting Dulaney High higher than the state norm the norm. About 33% of enrolled students meet the income threshold for free or reduced-price lunch, a number frequently used as a low-income enrollment indicator. That share is lower than Baltimore County's rate of about 53%.

On a demographically-adjusted basis, Dulaney High is in the bottom 10% of Maryland public schools. The BeatsExpectations model predicts schools with this FRL share to land around 54.5%; Dulaney High posts 36.8%, -17.7 points below that line.

In the surrounding community, the surrounding county (Baltimore County) logs that median household earnings sit near $91,768, 42% of adults hold a bachelor's degree or higher, and the poverty rate sits near 7%. In all, Baltimore County runs 180 public schools (combined enrollment of about 110,872 students), of which Dulaney High is one.

The closest other public school is Pot Spring Elementary, roughly 0.5 miles away. Counting just inside five miles, 8 other public schools cluster around Dulaney High. Among the 9 schools in that immediate cluster with test data (this one included), Dulaney High ranks 8th on composite proficiency, below the local average of 56.6%.

Geographically, the school is in a suburban area.

Looking at the recent track record. Looking back 7 years, enrollment at Dulaney High has expanded 5%, going from 1,802 students in 2018 to 1,889 in 2025. Over the same period, the White share shrank from 55% to 42%.

On allk12, the feed for Dulaney High typically covers pickup logistics, teacher feedback, and after-school programs. The community welcomes input from current and former families.

Baltimore County at a glance

View full county profile
Population
850,796
Census ACS
Median income
$91,768
Household, ACS
Bachelor's+
42%
Adults 25+
Poverty rate
7%
Below federal line
Schools in county
180
110,872 students

Quick facts

School name
Dulaney High
District
Baltimore County Public Schools
Address
255 E Padonia Road, Timonium, MD 21093
Phone
(443) 809-7633
County
Baltimore County
Level
High
Grade range
09–12
Total enrollment
1,889
Teachers (FTE)
105
Student–teacher ratio
18.0:1
Free/Reduced lunch
628 (33%)
Locale
21-Suburb: Large
NCES ID
240012000373
Charter school
No
Virtual school
No

Related schools

Other schools in Baltimore County Public Schools
Other schools in Timonium
Nearby schools

Frequently asked questions

About Dulaney High
How large is Dulaney High?
Dulaney High enrolls approximately 1,889 students in grades 09-12.
Is Dulaney High an elementary, middle, or high school?
Dulaney High is a high school covering grades 09-12.
How many teachers does Dulaney High have?
Dulaney High employs 105 FTE teachers, for a student-to-teacher ratio of 18.0:1.
How diverse is Dulaney High?
Dulaney High reports a student body of 42% White, 21% Hispanic, 21% Black, 12% Asian, 4% Two or more.
What district is Dulaney High in?
Dulaney High is part of Baltimore County Public Schools.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.
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