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Centennial High

Public Grades 9-12
25th
SchoolDigger Rank ?
of 227 Maryland High Schools
Better than 89% of Maryland high schools
Summary

Centennial High in Ellicott City, MD, is a top-performing high school serving 1,377 students in grades 9-12 within the highly-regarded Howard County Public Schools district, which is ranked 4th in Maryland. The school has a long history of academic excellence, earning a 5-star rating from SchoolDigger for most of the past decade and currently ranking 25th out of 227 high schools in the state, placing it firmly in the top tier.

Centennial's standout strength is its exceptional English Language Arts (ELA) proficiency, with 84.2% of all students proficient, significantly outpacing the district average of 65.9% and the state average of 51.7%. This performance surpasses nearby schools like Howard High and Mount Hebron High. However, the school has a unique "inverse" math profile: Algebra I proficiency is notably low at 10.2%, while Algebra II proficiency is exceptionally high at 43.2%, the second-highest among peers after River Hill High. This pattern, consistent over four years, suggests that many students take Algebra I later, making the test-taker group broader, while Algebra II students are more self-selected for advanced math. This contrasts sharply with schools like Hammond High and Atholton High, where Algebra I proficiency is higher than Algebra II.

Centennial's graduation rate of 93.1% is solid and above the district average of 91.3%, though slightly below Mount Hebron and Howard High. Chronic absenteeism has risen to 18.0%, a concern compared to River Hill's lower rate of 13.6%. The school also demonstrates efficient resource use, spending about $17,982 per student, which is lower than schools with lower academic performance like Wilde Lake High ($21,629) and Oakland Mills High ($20,779). Overall, Centennial offers a strong academic environment with notable strengths in ELA and advanced math, though families should be aware of the unique math placement patterns and the need to monitor attendance trends.

1,377
Students ?
17.0
Student/teacher ratio ?
$17,982
Per pupil spending ?
18.5%
Free/discounted lunch ?
 4300 Centennial Ln
       Ellicott City, MD  21042-6214

(410) 313-2856

District: Howard County Public Schools


Feeder schools for Centennial High:

Elementary:    Centennial Lane Elementary
    Northfield Elementary
Middle:    Burleigh Manor Middle
Racial breakdown:

Asian:
39.7%
White:
33.0%
African American:
13.4%
more
 See top rated Maryland high schools

 Compare Centennial High to nearby high schools!
At a glance
Ranking trend: Holding steady — 89th percentile in 2015 → 89th in 2026
Strengths
Test scores above the Maryland average (48% vs 38% meeting standards)
Ranks in the top 11% of Maryland high schools
93% graduate within 4 years
Worth a look
!Algebra I scores 11 pts below the Maryland average
Students meeting standards (2025-2026) ?
This school48%
District avg51%
Maryland avg38%
25th of 227
Maryland public high schools ?
Top 11%▼ down 3 pts since 2016
From top 8% (2016) to top 11% (2026)
See the entire ranking list of Maryland High Schools →
SchoolDigger rating ?
3rd of 14High Schools in the Howard County Public Schools
4th of 24Howard County Public Schools among Maryland districts
Statewide rank percentile over time (100 = the top-ranked school in the state; click a legend item to add a student group)
Show full rank history (all student groups)

All Students

YearAvg scoreStatewide rankMaryland percentileRating
202668.425 of 22789.0%★★★★☆
202570.623 of 22089.5%★★★★☆
202477.410 of 14693.2%★★★★★
202376.18 of 12793.7%★★★★★
202274.216 of 22592.9%★★★★★
201983.010 of 13892.8%★★★★★
201882.313 of 19793.4%★★★★★
201788.06 of 18096.7%★★★★★
201679.418 of 23392.3%★★★★★
201574.026 of 23388.8%★★★★☆
201483.26 of 23197.4%★★★★★
201383.315 of 18591.9%★★★★★
201284.57 of 18796.3%★★★★★
201185.713 of 18392.9%★★★★★
201084.116 of 22092.7%★★★★★
200985.14 of 21398.1%★★★★★
200885.44 of 21498.1%★★★★★
200785.03 of 20998.6%★★★★★
200683.38 of 20496.1%★★★★★
200586.54 of 20498.0%★★★★★
200461.116 of 20192.0%★★★★★

White

YearAvg scoreStatewide rankMaryland percentileRating
202182.110 of 4075.0%★★★★☆
How student groups rank statewide ? (each group's percentile vs the same group at other schools — higher is better; the +/- beside each compares the group with this school's overall percentile)
White (2021)75th percentile
By subject vs Maryland (2025-2026) ?
English Language Arts84%+32 vs state
Algebra II43%+16 vs state
Mathematics34%+7 vs state
Algebra I10%-11 vs state

3.8
5 ratings · 4 written reviews
53
40
31
20
11
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What people are saying
by a parent
Wednesday, May 11, 2011

Open Quote My son came home one day, and said that he hated centennial. It was the first day so I let it slide. At the end of the year he said again he hated centennial, and I asked why? He said the teachers were terrible, and the students were all snobby. He mentioned the only reason centennials a good school is because everyone that goes there can afford tutors. Close Quote


by a parent
Monday, January 10, 2011

Open Quote My daughter could have easily gotten into the humanities program but we chose to not enroll. I think the program is way oversold. I don't know how you can teach a "Humanities" program and omit European history (students have to take that as an elective!) She is in GT and AP courses and I do not feel she has been shortchanged at all. My only issue with Centennial are the parents who demand their children be put into classes they are not prepared for (AP >, probably Humanities as well) so the teachers have to teach down to them, until they finally drop out or are asked to leave. Close Quote


by a parent
Sunday, November 28, 2010

Open Quote Regarding the Humanities program.... My kids were part of this program and all of them felt they had an advantage in college over other students. They did not panic when assigned long or last-minute papers freshman year. They were used to it. I have no idea how placement is handled there now. I only know it was a fantastic program, and I commend the teachers who were a part of it. Close Quote


by a parent
Thursday, July 15, 2010

Open Quote Centennial High School is a truly renowned school and is very much soutght after by many parents. I have one child who is currently in school, and another entering next fall. There is one very bad thing about Centennial though.

Centennial High school has a program called the Humanities program. As with other schools, students were recommended, and those who were not were allowed to waiver with the approval of the teachers. Somehow, too many people were entered into the Humanities program, so many had to be taken out. Instead of trying to get everyone in, the school randomly picked stuydents. Is this fair? Some students are going to experience a richer educational experience, and have a better college resume because of sheer luck. This is the reason i have left out two stars.......... :( Close Quote





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Frequently Asked Questions about Centennial High

In the 2024-25 school year, 1,377 students attended Centennial High.

Students at Centennial High are 40% Asian, 33% White, 13% African American, 8% Hispanic, 5% Two or more races.

Centennial High ranks 25th of 227 Maryland high schools. SchoolDigger rates this school 4 stars out of 5.

Centennial High is fed by the following schools:

Elementary : Centennial Lane Elementary
Elementary : Northfield Elementary
Middle : Burleigh Manor Middle

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Latest Maryland data All new data »
2025–26 MCAP test scoresJul 28, 2026
2024–25 school spending dataJun 13, 2026
2024–25 attendance data, dropout rates & graduation ratesJun 13, 2026
2024–25 MCAP test scoresAug 26, 2025


SchoolDigger data sources: National Center for Education Statistics, U.S. Department of Education, the U.S. Census Bureau and the Maryland State Department of Education.

IMPORTANT DISCLAIMERS: Not all boundaries are included. We make every effort to ensure that boundaries are up-to-date. But it's important to note that these are approximations and are for general informational purposes only. To verify legal descriptions of boundaries or school locations, contact your local tax assessor's office and/or school district.

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