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SCHOOL COMMUNITY·HOWARD COUNTY PUBLIC SCHOOLS·NCES 240042000722

Centennial High

4300 Centennial Ln, Ellicott City, MD 21042 · (410) 313-2856 · Howard County
GRADES 09–12HIGH21-SUBURBREGULAR SCHOOL1,377 STUDENTS
Enrollment
1,377
High
DISTRICT 1,313 · STATE 1,185
Student : Teacher
17.0:1
81 FTE teachers
DISTRICT 14.7:1 · STATE 15.3:1
Free / Reduced Lunch
19%
255 students
DISTRICT 29% · 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
356
Grade 10
362
Grade 11
350
Grade 12
309
Student demographics
White
45533%
DISTRICT 29% · STATE 31%
Hispanic
1078%
DISTRICT 14% · STATE 24%
Black
18513%
DISTRICT 25% · STATE 32%
Asian
54740%
DISTRICT 24% · STATE 7%
Two+
745%
DISTRICT 7% · STATE 5%
Native American
30%
DISTRICT 0% · STATE 0%
Pacific Islander
20%
DISTRICT 0% · STATE 0%
Student head counts by race/ethnicity from federal NCES enrollment data. Very small groups may be suppressed in the source, so categories do not always sum exactly to total enrollment.
Gender split
Male
70451%
Female
66949%

Discussions

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Test scores

MCAP 2024-25 . % Proficient (Levels 3-4)
English Language Arts
83.6%
MD avg 50.6% . -2.4pp since 2023
Math
20.3%
MD avg 34.8% . -4.4pp since 2023
Source: MCAP. All students, all grades. See all years and grades →

BeatsExpectations

Demographically-adjusted score · methodology
Tier
AS EXPECTED
Performing as predicted given the school's student profile
Actual proficiency
53.6%
composite math + reading, all grades
Predicted
63.3%
based on MD schools with similar FRL share
Beats by
-9.6pp
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
1,377
-237 (-15%) vs 2017
Student : Teacher
17.0:1
was 16.7:1
% White
33%
was 39%
% Hispanic
8%
was 5%
% Black
13%
was 9%
% Asian
40%
was 39%
Source: NCES Common Core of Data

About Centennial High

Centennial High is one of the mid-sized senior highs in Ellicott City, Maryland, part of Howard County Public Schools, with 1,377 students on its rolls from grades 9 through 12.

Across the 77 schools in Howard County Public Schools (57,565 students total), Centennial High accounts for its share of the district's footprint.

For racial and ethnic makeup, Centennial High records that the most-represented group is Asian (40%), with the rest of the student body spread across multiple groups. The remainder is composed of 33% White, 13% Black, 8% Hispanic, 5% multiracial. The wider county runs roughly 19% Asian, putting the school's mix considerably more Asian than the area baseline.

Looking at the economic backdrop, Centennial High logs 81 full-time-equivalent teachers, putting the student-to-teacher ratio at about 17.0:1. The state averages around 15.3:1, so this campus is higher than the state norm typical. Roughly 19% of students at Centennial High qualify for free or reduced-price lunch, which schools and policymakers use as a rough income-mix signal. By comparison, Howard County runs at roughly 27%, so the school's eligibility rate is somewhat below the surrounding baseline.

After controlling for student poverty, Centennial High tracks the demographic baseline. The model predicts 63.3% given the school's FRL share; actual proficiency is 53.6%.

Around the school, ACS estimates for Howard County put median household earnings sit near $149,763, about 65% of the adult population holds a bachelor's degree or above, and roughly 4% of residents live below the federal poverty line. Across Howard County's 78 public schools (combined enrollment of about 57,565 students), Centennial High is one campus in the mix.

Burleigh Manor Middle is the nearest neighboring public school, about 0.2 miles from this campus. 8 of the 8 nearest public schools sit inside a five-mile radius. On composite proficiency, Centennial High comes 5th of 8 in the immediate cluster, behind the nearby-schools average of 56.9%.

Centennial High operates from a residential location.

Trend over the last 7 years. Centennial High's enrollment has shrank 15% since 2018, when it stood at 1,614 (now 1,377). White enrollment moved from 39% to 33% across the same window.

On allk12, the feed for Centennial High typically covers school events, parent volunteer needs, and clubs. Members of the school community can share what they know.

Howard County at a glance

View full county profile
Population
336,328
Census ACS
Median income
$149,763
Household, ACS
Bachelor's+
65%
Adults 25+
Poverty rate
4%
Below federal line
Schools in county
78
57,565 students

Quick facts

School name
Centennial High
District
Howard County Public Schools
Address
4300 Centennial Ln, Ellicott City, MD 21042
Phone
(410) 313-2856
County
Howard County
Level
High
Grade range
09–12
Total enrollment
1,377
Teachers (FTE)
81
Student–teacher ratio
17.0:1
Free/Reduced lunch
255 (19%)
Locale
21-Suburb: Large
NCES ID
240042000722
Charter school
No
Virtual school
No

Related schools

Other schools in Howard County Public Schools
Other schools in Ellicott City
Nearby schools

Frequently asked questions

About Centennial High
How large is Centennial High?
Centennial High enrolls approximately 1,377 students in grades 09-12.
Is Centennial High an elementary, middle, or high school?
Centennial High is a high school covering grades 09-12.
How many students per teacher at Centennial High?
Approximately 17.0:1 students per teacher at Centennial High.
What is the racial breakdown of students at Centennial High?
At Centennial High, the student body is approximately 33% White, 8% Hispanic, 13% Black, 40% Asian, 5% Two or more.
Is Centennial High public or private?
Centennial High is a public K-12 school, overseen by Howard County Public Schools.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.
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