River Hill High

High school·Grades 9-12 Clarksville, Maryland·21029
Score
98.8/100
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#3
Among 202 Maryland high schools
#1
In Howard County Public Schools
Top 2%
In Maryland

Score 98.8/100: better than 98% of Maryland high schools on 2025-26 state tests. Schools are only compared with others of the same type in the same state. How we score schools

Performance (state tests, 2025-26)

% proficient on state tests in Maryland, all students. Colored bars are green when the school is at or above the average for similar Maryland schools.

English language arts
93%
Similar Maryland schools ≈ 60%, better than 97% of them
284 students tested
Math
49%
Similar Maryland schools ≈ 13%, better than 98% of them
328 students tested
Science
92%
Similar Maryland schools ≈ 49%, better than 97% of them
301 students tested
All Maryland schools (ELA / math)
52% / 28%
State average across every school type, 2025-26
All 7 published results by grade and test

As published by Maryland State Department of Education. "Hidden" means the state didn't publish the result to protect student privacy.

SubjectGradeTestResultStudents tested
English language artsGrade 10MCAP English Language Arts 1093.3284
English language artsAll gradesMCAP English Language Arts All Grades93.3284
MathHigh schoolMCAP Algebra 117.873
MathHigh schoolMCAP Algebra 258.4255
MathAll gradesMCAP Mathematics All Grades49.4328
ScienceHigh schoolMCAP High School Science91.7301
Social studiesHigh schoolMCAP American Government83.874

School profile

Grades
9-12
Students
1,462
Type
High school
Charter school
No
Program
Regular

Students

Enrollment
1,462
Typical high school: 1,183
Free or reduced-price lunch
7%
Typical high school: 49%

District and location

City
Howard County

Contact

Address
12101 Clarksville Pike
Clarksville, MD 21029

"Typical" is the middle (median) high school in Maryland. Higher or lower is not in itself better or worse. Address, phone and website are as the state reported them to the U.S. Department of Education for 2024-25, so check with the school before visiting. School details: U.S. Department of Education, Common Core of Data (enrollment 2023-24, lunch eligibility 2024-25).

Nearby high schools

Straight-line distance. Check the district's attendance zones: living close to a school doesn't guarantee a place.

Location

OpenStreetMap · Google Maps

River Hill High at a glance

River Hill High is a public high school in Clarksville, Maryland, serving grades 9-12. It is part of Howard County Public Schools. It has about 1,462 students (a typical Maryland high school has 1,183). About 7% of students are eligible for free or reduced-price lunch, compared with 49% at a typical Maryland high school, which is useful context when reading test results.

In 2025-26 state tests, 93% in English language arts (similar schools: 60%) and 49% in math (similar schools: 13%) reached the state standard (% proficient). On our score, which compares it only with other Maryland high schools, it scores 98.8 out of 100: better than 98% of them, ranking #3 of 202. This overview is generated automatically from published state and federal data; figures are rounded, and you can check the originals via the official sources above.

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Page updated 2026-10-12.