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Ranked 53 of 143 in Maryland
See top schools in Ellicott CityCentennial High School is a public high school in Ellicott City, Maryland, that serves grades 9–12 and is part of Howard County Public Schools. The school has about 1,700 students and a student-to-teacher ratio of about 17:1, which helps create a focused academic environment. Centennial High School is known as one of the best schools in the area. It has a strong college-preparatory curriculum that includes Advanced Placement classes. About 60% of students take AP classes and exams. There are a lot of different types of students at this school. About 66% of them are minorities, and about 18% of them are low-income. The 2025–2026 academic proficiency data shows that about 40% of students are good at math and about 79% are good at reading. Students have access to standardized testing opportunities, including SAT and ACT, when appropriate. Centennial High School is in a well-known Ellicott City neighborhood that is known for having a strong school environment. The school is known for its academic balance, diversity, and continued student success.
New Playground Name
We are so excited to announce the name of our new playground! Following a school-wide and Robinson community vote we narrowed a large list of names down to four. Since our students will be using the playground on a daily basis, we gave them the final vote! 476.....
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MANSFIELD — Inside the brick building on East Street, four educators who began teaching within 2 years of each other, all spending the beginning of their careers teaching fourth grade at Jordan/Jackson Elementary School...
Read MoreAll Grades: 7:50 AM to 2:35 PM
Dismissal Time: 12:15 PM
Note: Doors open at 7:35 AM for student arrival. Please refer to the school calendar for specific early dismissal dates.
Information coming soon
September to June
School session starts in September 1st week and ends in June 3rd week. For exact dates, please contact the school.
1364 Students
With a student-teacher ratio of 16 : 1
25%
Percentage of minority students
341 : 1
Student to counselor ratio
Being Updated
After winning a number of tournaments in January 2026, Centennial High School's academic teams are now at the top of the regional standings. The school just started a new peer-mentoring program for STEM subjects. It pairs upperclassmen with students who are just starting to learn physics and chemistry. Also, the fine arts department is getting ready for its annual winter showcase, which will feature student work that has recently won awards from the regional Scholastic Art and Writing Awards.
Q1. Are students able to look into STEM options?
Ans. Yes, for sure! There are science, technology, engineering, and math programs that let students learn through practical activities.
Q2. Are there any programs that are creative?
Ans. Yes, students can be creative through practical activities music, drama, and visual arts.
Q3. What is the goal of Centennial High?
Ans. Centennial High wants to give students a challenging academic program while also encouraging them to be responsible, involved, and lifelong learners.
Q4. How does Centennial High keep things positive?
Ans. A safe and productive learning environment is built on respect, accountability, and inclusion.
Q5. Do students get help getting ready for college?
Ans. Yes, of course! Students can take the SAT and ACT and get help planning for college.
Note: Schedules may change during school holidays. Please contact School for exact Schedule.
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The information provided about schools is for general reference only and may not be 100% accurate or up to date. We recommend contacting the respective school directly to confirm the latest details and ensure accuracy.
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