Homewood School
Alternative · Grades 6–12 · 109 students
Centennial High
4300 Centennial Ln, Ellicott City, MD 21042
Grades
9–12
High
Students
1,377
Enrolled 2024–25
Students per teacher
17 : 1
Full-time teachers
District
Howard County Public Schools
Howard County
Schola Grade A · Excellent
Letter grade (A–F) · compared with 204 Maryland high schools · How we grade
Percentiles compare this school with other Maryland high schools; the line marks the middle. Data: test scores 2021–22, graduation and absenteeism 2022–23 (U.S. Department of Education, EDFacts); coursework 2023–24 (Civil Rights Data Collection); staffing 2024–25 (NCES).
About Centennial High
Centennial High is a public high school in Ellicott City, Maryland, serving grades 9–12. It is part of Howard County Public Schools. The school is located in a large suburb in Howard County.
In the 2024–25 school year, 1,377 students were enrolled, with about 17 students for every full-time teacher. That ratio is larger than the typical Maryland high school (15.5 students per teacher). Its Schola Grade is A (excellent), compared with 204 Maryland high schools.
Grades & enrollment
Students per grade, 2024–25Grades 9–12
Location & nearby schools
School details
- Type
- Public School · What this means
- Level
- High
- Grades offered
- 9–12
- Enrollment (2024–25)
- 1,377 students
- Students per teacher
- 17 to 1
- AP courses offered
- 37
- Charter school
- No
- Magnet school
- No
- Locale
- Suburb — Large
- School district
- Howard County Public Schools
- County
- Howard County
- NCES school ID
- 240042000722
Schools near Centennial High
All 32 schools in Ellicott City →
Applications and Research Laboratory
Alternative · Grades 9–12
Wilde Lake High
Public · Grades 9–12 · 1,197 students
Fusion Columbia
Private · Grades 7–12 · 75 students
Oakland Mills High
Public · Grades 9–12 · 1,413 students
Howard High
Public · Grades 9–12 · 1,493 students
School data comes from the U.S. Department of Education: the National Center for Education Statistics (NCES) Common Core of Data and EDGE school locations (2024–25) and Private School Survey (2023–24), the Civil Rights Data Collection (2023–24), and EDFacts (test results 2021–22; graduation and chronic absenteeism 2022–23), plus other public sources. Please contact the school to confirm enrollment, programs, and other details. How we source data.