Triadelphia Ridge Elementary

Elementary school·Grades PK-5 Ellicott City, Maryland·21042
Score
97.5/100
Compare Triadelphia Ridge Elementary with another school
#20
Among 765 Maryland elementary schools
#2
In Howard County Public Schools
#2
In Ellicott City
Top 3%
In Maryland

Score 97.5/100: better than 97% of Maryland elementary 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
82%
Similar Maryland schools ≈ 50%, better than 96% of them
343 students tested
Math
74%
Similar Maryland schools ≈ 36%, better than 97% of them
343 students tested
Science
71%
Similar Maryland schools ≈ 34%, better than 97% of them
104 students tested
All Maryland schools (ELA / math)
52% / 28%
State average across every school type, 2025-26
All 9 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 3MCAP English Language Arts 0378.3106
English language artsGrade 4MCAP English Language Arts 0484.1132
English language artsGrade 5MCAP English Language Arts 0582.9105
English language artsAll gradesMCAP English Language Arts All Grades81.9343
MathGrade 3MCAP Mathematics 0374.5106
MathGrade 4MCAP Mathematics 0474.2132
MathGrade 5MCAP Mathematics 0574.3105
MathAll gradesMCAP Mathematics All Grades74.3343
ScienceGrade 5MCAP Science Grade 571.2104

School profile

Grades
PK-5
Students
625
Type
Elementary school
Charter school
No
Program
Regular

Students

Enrollment
625
Typical elementary school: 466
Free or reduced-price lunch
7%
Typical elementary school: 55%

District and location

City
Howard County

Contact

Address
13400 Triadelphia Rd
Ellicott City, MD 21042

"Typical" is the middle (median) elementary 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 elementary schools

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

Location

OpenStreetMap · Google Maps

Triadelphia Ridge Elementary at a glance

Triadelphia Ridge Elementary is a public elementary school in Ellicott City, Maryland, serving grades PK-5. It is part of Howard County Public Schools. It has about 625 students (a typical Maryland elementary school has 466). About 7% of students are eligible for free or reduced-price lunch, compared with 55% at a typical Maryland elementary school, which is useful context when reading test results.

In 2025-26 state tests, 82% in English language arts (similar schools: 50%) and 74% in math (similar schools: 36%) reached the state standard (% proficient). On our score, which compares it only with other Maryland elementary schools, it scores 97.5 out of 100: better than 97% of them, ranking #20 of 765. 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.