Excellent
#141 of 1,363 schools in MD
Top 10% in state
Centennial High
High School · Howard County Public Schools
4300 Centennial Ln, Ellicott City, MD 21042
Enrollment
1,364
Student-Teacher
16:1
Score
8.7
Grades
9th – 12th
Enrollment
1,364
Student-Teacher
16:1
Score
8.7
Grades
9th – 12th
Data vintage
2022-23
Data vintage2022-23
How this school compares
Maryland schools
#141 of 1,363
In Ellicott City
#12 of 21
public schools
In district
#24 of 76
Howard County Public Schools
Academic growth
9.6 / 10
Excellent
Shortlisting around Centennial High?
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Centennial High
High School in Ellicott City · grades 9th – 12th. Start here, then compare fit against nearby and district options.
Burleigh Manor Middle
0.2 mi away. Use as a geographic alternative in the same move search.
Centennial Lane Elementary
1.0 mi away. Use as a geographic alternative in the same move search.
About Centennial High
Centennial High is a public high school in Ellicott City, MD, part of Howard County Public Schools. Centennial High serves approximately 1,364 students, and covers grades 9th-12th, and has a 16:1 student-teacher ratio. Centennial High has a current MySchoolScout rating of 8.7 out of 10 and ranks #141 of 1,363 schools in MD.
Structured state assessment records for Centennial High show 89% math proficiency (multi-year average, 2009-2025) and 89% reading/ELA proficiency (multi-year average, 2009-2025).
- This school 8.7 · Excellent
- District avg 7.5
- MD avg 6.1
Score Breakdown
Full Profile · 4/4 metricsView breakdown
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Centennial High — Students at Centennial High score 58% proficient, which is below what's typical for similar communities (expected: 61%).
Equity & Diversity
Shown separately, not included in overall scoreFree/Reduced Lunch
17.8%
Students qualifying for federal meal assistance
Test Scores MD MCAP (2024-25)
Based on 28 test records from MD state assessments. About our data
Proficiency Trend
↓ DecliningAverage proficiency (% at or above grade level) across Math & ELA over time.
* COVID-affected year — test participation was uneven nationwide. This data is weighted at 50% in the Growth score calculation.
Source: EdFacts (NCES) and state assessment data. Growth score: 9.6/10.
How Centennial High Compares
See how Centennial High performs across key quality dimensions compared to state benchmarks.
Funding & Resources
Programs & Offerings
Data as of 2021-22 · Source: CRDC via Urban Institute · Learn more
Location
4300 Centennial Ln, Ellicott City, MD 21042
Nearby Alternatives
Families considering Centennial High may also want to explore other high schools in the area. FUSION COLUMBIA (rated 6.9/10, 2.6 miles away, in nearby Columbia), a more accessible option. Another option is Wilde Lake High (rated 6.3/10, 2.5 miles away, in nearby Columbia), a more accessible option. Additionally, Homewood School (rated 5.2/10, 1.6 miles away), a more accessible option. For more schools in Ellicott City, see our Ellicott City schools guide .
Nearby Schools
20 within 3.3 mi| School | Distance | Rating |
|---|---|---|
| Burleigh Manor Middle Ellicott City | 0.2 mi | 9.2 |
| Centennial Lane Elementary Ellicott City | 1.0 mi | 9.3 |
| Running Brook Elementary Columbia | 1.8 mi | 5.5 |
| Homewood School Ellicott City | 1.6 mi | 5.2 |
| Longfellow Elementary Columbia | 2.0 mi | 6.2 |
| BRYANT WOODS MONTESSORI CHILDRENS HOUSE Columbia | 2.1 mi | — |
| COLUMBIA MONTESSORI SCHOOL Columbia | 2.1 mi | — |
| Bryant Woods Elementary Columbia | 2.2 mi | 6.7 |
| Harpers Choice Middle Columbia | 2.2 mi | 6.3 |
| Wilde Lake High Columbia | 2.5 mi | 6.3 |
| Dunloggin Middle Ellicott City | 2.0 mi | 8.4 |
| Wilde Lake Middle Columbia | 2.5 mi | 7.8 |
| FUSION COLUMBIA Columbia | 2.6 mi | 6.9 |
| Northfield Elementary Ellicott City | 2.1 mi | 8.9 |
| Swansfield Elementary Columbia | 2.7 mi | 7.4 |
| Thunder Hill Elementary Columbia | 2.5 mi | 6.6 |
| ST JOHNS PARISH DAY SCHOOL Ellicott City | 2.6 mi | 7.4 |
| Talbott Springs Elementary Columbia | 3.1 mi | 7.3 |
| RESURRECTION ST PAUL SCHOOL Ellicott City | 2.9 mi | 5.2 |
| NURTURING NEST MONTESSORI SCHOOL Columbia | 3.3 mi | — |
Neighborhood Census ACS (2019-2023)
Census data for ZIP 21042 (ACS 2019-2023 5-Year Estimates) · Data sources
Median Income
$190,504
Median Home Value
$674,700
Median Rent
$2,253/mo
Population
43,021
College Educated
74.7%
Homeownership
85.4%
Avg Commute
29.3 min
Poverty Rate
2.7%
Median Age
45
Similar Schools
Schools in the same state with comparable level, size, and ratings
| School | Rating |
|---|---|
| River Hill High Clarksville, MD | 8.7 |
| Marriotts Ridge High Marriottsville, MD | 8.6 |
| Eastern Technical High School Baltimore, MD | 8.8 |
| Western School of Technology Baltimore, MD | 8.8 |
| Glenelg High Glenelg, MD | 8.5 |
| Baltimore Polytechnic Institute Baltimore, MD | 8.4 |
Frequently Asked Questions
Common questions about Centennial High
What grades does Centennial High serve?
Centennial High serves students in grades 9th through 12th.
How many students attend Centennial High?
Centennial High has an enrollment of approximately 1,364 students.
What is the student-teacher ratio at Centennial High?
The student-teacher ratio at Centennial High is 16:1. A lower ratio generally means more individual attention per student. The national average is approximately 16:1 for public schools.
How does Centennial High rank in MD?
Centennial High ranks #141 of 1,363 schools in MD.
What is Centennial High's MySchoolScout rating?
Centennial High has a current MySchoolScout rating of 8.7 out of 10. This score combines the level-appropriate components shown in the rating breakdown; equity data is shown separately for context.
What are the test scores at Centennial High?
Based on loaded state assessment records, Centennial High has 89% math proficiency (multi-year average, 2009-2025) and 89% reading/ELA proficiency (multi-year average, 2009-2025).
Is Centennial High a charter school?
No, Centennial High is not a charter school. It is a traditional public school operated by the local school district.
Is Centennial High a Title I school?
No, Centennial High is not currently a Title I school.
What does the Free & Reduced Lunch percentage mean for Centennial High?
17.8% of students at Centennial High qualify for free or reduced-price lunch. This is a commonly used indicator of economic need and provides important context when interpreting test scores.
Neighborhood Context
Powered by 
Quick Facts NCES CCD (SY 2022-23)
- Grades
- 9th – 12th
- Enrollment
- 1,364
- Student-Teacher Ratio
- 16:1
- Teachers (FTE)
- 85
- Free/Reduced Lunch
- 17.8%
- Type
- regular
- Setting
- Large Suburb
- County
- Howard County
- Chronic Absenteeism (SY 2022-23)
- 17.1%
- Phone
- (410) 313-2856
- 4-Year Graduation
- 97.0%
Resources & Links
District
Howard County Public Schools- District Enrollment
- 57,633
- Schools in District
- 78
- Per-Pupil Spending
- $19,256
- District Rank
- #24 of 76
Other Schools in This District
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