Centennial High

High school·Grades 9-12 Ellicott City, Maryland·21042
Score
93.3/100
Compare Centennial High with another school
#14
Among 202 Maryland high schools
#4
In Howard County Public Schools
#1
In Ellicott City
Top 7%
In Maryland

Score 93.3/100: better than 93% of Maryland high schools on 2025-26 state tests. Schools are only compared with others of the same type in the same state. How we score schools

Performance (state tests, 2025-26)

% proficient on state tests in Maryland, all students. Colored bars are green when the school is at or above the average for similar Maryland schools.

English language arts
84%
Similar Maryland schools ≈ 60%, better than 88% of them
348 students tested
Math
34%
Similar Maryland schools ≈ 13%, better than 92% of them
459 students tested
Science
83%
Similar Maryland schools ≈ 49%, better than 92% of them
384 students tested
All Maryland schools (ELA / math)
52% / 28%
State average across every school type, 2025-26
All 7 published results by grade and test

As published by Maryland State Department of Education. "Hidden" means the state didn't publish the result to protect student privacy.

SubjectGradeTestResultStudents tested
English language artsGrade 10MCAP English Language Arts 1084.2348
English language artsAll gradesMCAP English Language Arts All Grades84.2348
MathHigh schoolMCAP Algebra 110.2128
MathHigh schoolMCAP Algebra 243.2331
MathAll gradesMCAP Mathematics All Grades34459
ScienceHigh schoolMCAP High School Science82.6384
Social studiesHigh schoolMCAP American Government70.1174

School profile

Grades
9-12
Students
1,364
Type
High school
Charter school
No
Program
Regular

Students

Enrollment
1,364
Typical high school: 1,183
Free or reduced-price lunch
19%
Typical high school: 49%

District and location

City
Howard County

Contact

Address
4300 Centennial Ln
Ellicott City, MD 21042

"Typical" is the middle (median) high school in Maryland. Higher or lower is not in itself better or worse. Address, phone and website are as the state reported them to the U.S. Department of Education for 2024-25, so check with the school before visiting. School details: U.S. Department of Education, Common Core of Data (enrollment 2023-24, lunch eligibility 2024-25).

Nearby high schools

Straight-line distance. Check the district's attendance zones: living close to a school doesn't guarantee a place.

Location

OpenStreetMap · Google Maps

Centennial High at a glance

Centennial High is a public high school in Ellicott City, Maryland, serving grades 9-12. It is part of Howard County Public Schools. It has about 1,364 students (a typical Maryland high school has 1,183). About 19% of students are eligible for free or reduced-price lunch, compared with 49% at a typical Maryland high school, which is useful context when reading test results.

In 2025-26 state tests, 84% in English language arts (similar schools: 60%) and 34% in math (similar schools: 13%) reached the state standard (% proficient). On our score, which compares it only with other Maryland high schools, it scores 93.3 out of 100: better than 93% of them, ranking #14 of 202. This overview is generated automatically from published state and federal data; figures are rounded, and you can check the originals via the official sources above.

Compare Centennial High with another school

Page updated 2026-10-12.