For the 2026 school year, there are 4 public high schools serving 3,013 students in 21042, MD.
The top-ranked public high schools in 21042, MD are Centennial High School, Mount Hebron High School and Homewood School. Overall testing rank is based on a school's combined math and reading proficiency test score ranking.
Public high schools in zipcode 21042 have an average math proficiency score of 72% (versus the Maryland public high school average of 34%), and reading proficiency score of 86% (versus the 56% statewide average). High schools in 21042, MD have an average ranking of 10/10, which is in the top 5% of Maryland public high schools.
Public high school in zipcode 21042 have a Graduation Rate of 94%, which is more than the Maryland average of 86%.
The school with highest graduation rate is Centennial High School, with 98% graduation rate. Read more about public school graduation rate statistics in Maryland or national school graduation rate statistics.
Minority enrollment is 64% of the student body (majority Asian), which is less than the Maryland public high school average of 68% (majority Black).
Best 21042, MD Public High Schools (2026)
School
(Math and Reading Proficiency)
(Math and Reading Proficiency)
Location
Quick Facts
Rank: #11.
Centennial High School
(Math: 77% | Reading: 88%)
Rank:
Rank:
10/
Top 1%10
4300 Centennial Ln
Ellicott City, MD 21042
(410) 313-2856
Ellicott City, MD 21042
(410) 313-2856
Gr: 9-12 | 1,364 student Student-teacher ratio: 16:1 Minority enrollment: 66%
Rank: #22.
Mount Hebron High School
(Math: 71% | Reading: 85%)
Rank:
Rank:
10/
Top 5%10
9440 Old Frederick Road
Ellicott City, MD 21042
(410) 313-2880
Ellicott City, MD 21042
(410) 313-2880
Gr: 9-12 | 1,518 student Student-teacher ratio: 15:1 Minority enrollment: 62%
Rank: #33.
Homewood School
Alternative School
(Math: ≤20% | Reading: <50%)
Rank:
Rank:
6/
Top 50%10
10914 Clarksville Pike
Ellicott City, MD 21042
(410) 313-7081
Ellicott City, MD 21042
(410) 313-7081
Gr: 6-12 | 131 students Student-teacher ratio: 3:1 Minority enrollment: 68%
Rank: n/an/a
Applications And Research Laboratory
Alternative School
10920 Clarksville Pike
Ellicott City, MD 21042
(410) 313-6698
Ellicott City, MD 21042
(410) 313-6698
Gr: 9-12
Frequently Asked Questions
What are the top-ranked public high schools in 21042, MD?
The top-ranked public high schools in 21042, MD include Centennial High School, Mount Hebron High School and Homewood School.
How many public high schools are located in 21042?
4 public high schools are located in 21042.
What is the racial composition of students in 21042?
21042 public high schools minority enrollment is 64% of the student body (majority Asian), which is less than the Maryland public high schools average of 68% (majority Black).