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Excellent

#239 of 1,363 schools in MD

Top 18% in state

Triadelphia Ridge Elementary

Elementary School · Howard County Public Schools

13400 Triadelphia Rd, Ellicott City, MD 21042

Enrollment

625

Student-Teacher

13.6:1

Score

8.0

Grades

Pre-K – 5th

Updated 2022-23

How this school compares

In Ellicott City

#6 of 21

public schools

Maryland elementary schools

#233 of 882

In district

#19 of 76

Howard County Public Schools

Equity

9.6 / 10

Exceptional

About Triadelphia Ridge Elementary

Triadelphia Ridge Elementary serves 625 students in grades PK through 5 in Ellicott City, Maryland, where it has earned recognition as one of the state's top-performing schools. With a MySchoolScout rating of 8.3 out of 10 and ranking 13th among Maryland's 1,364 elementary schools, the school demonstrates exceptional academic achievement that places it in the 99th percentile statewide. The school's 46 full-time equivalent teachers maintain a favorable 13.6-to-1 student-teacher ratio, supporting strong academic outcomes across core subjects.

Students consistently perform well on state assessments, with 71% achieving proficiency or above in English Language Arts and Reading, and 67% meeting or exceeding standards in Mathematics. These impressive results reflect both the school's educational approach and the highly engaged community it serves. Located in the affluent 21042 ZIP code area, Triadelphia Ridge Elementary draws from a well-educated community where 73% of residents hold bachelor's degrees or higher.

The neighborhood's median household income of $178,207 and low poverty rate of 4.1% contribute to a stable, supportive environment for learning. The school sits in a rural setting near town along Triadelphia Road, offering students a peaceful learning environment while remaining accessible to the broader Ellicott City community.

What Parents Should Know

Located in a rural area, Triadelphia Ridge Elementary may involve longer commutes for some families. Rural schools often serve as community anchors and may have smaller class sizes, but parents should consider transportation logistics, after-school program availability, and access to specialized services.

Score Breakdown

Full Profile · 3/3 metrics
Student Progress7.3Very Good50%
Year-over-year improvement in student test scores.
View breakdown
Years of Data4
Annual Change+0.89 pts/yr
Data Period2019–2025
TrendStable
Academics9.3Exceptional30%
Student proficiency on state tests, adjusted for community poverty levels.
View breakdown
Math Proficiency78.9%
Reading/ELA Proficiency77.5%
Math vs. State Avg+48.7 pts
Reading vs. State Avg+26.4 pts
Overall Proficiency78%
Expected (poverty-adj.)70%
vs. Expected+8.6 pts
Adjusted Percentile89th
College ReadinessNot Available

Data not available for this school

Resources & Environment7.8Very Good20%
Student-teacher ratio, per-pupil spending, and attendance.
View breakdown
Student-Teacher Ratio13.6:1
Per-Pupil Spending$17,971

Triadelphia Ridge Elementary — Students at Triadelphia Ridge Elementary score 78% proficient, which is above what's typical for similar communities (expected: 70%).

How we calculate scores →

Equity & Diversity

Shown separately, not included in overall score

Free/Reduced Lunch

7.8%

Students qualifying for federal meal assistance

Test Scores MD MCAP (2024-25)

Math Proficiency 69.2%
School
State
30.2%
ELA Proficiency 68.1%
School
State
51.1%

Based on 8 test records from MD state assessments. About our data

Proficiency Trend

→ Stable

Average proficiency (% at or above grade level) across Math & ELA over time.

2019
Math
79%
ELA
73%
2021*
Math
52%
ELA
51%
2022
Math
67%
ELA
71%
2025
Math
78.9%
ELA
77.5%

* 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: 7.3/10.

How Triadelphia Ridge Elementary Compares

See how Triadelphia Ridge Elementary performs across key quality dimensions compared to state benchmarks.

Overall Score
8.0/10
83th percentile in MD
Academic
9.3/10
9.3/10
Growth
7.3/10
Above average
Environment
7.8/10
Above average

Funding & Resources

Free/Reduced Lunch
Students eligible for subsidized meals
8%
Teaching Staff
14:1 student-teacher ratio
46 teachers

Location

13400 Triadelphia Rd, Ellicott City, MD 21042

Nearby Alternatives

Families considering Triadelphia Ridge Elementary may also want to explore other elementary schools in the area. West Friendship Elementary (rated 9.2/10, 3.0 miles away, in nearby West Friendship), which scores notably higher. Another option is Pointers Run Elementary (rated 8.6/10, 6.0 miles away, in nearby Clarksville), which scores slightly higher. Additionally, Dayton Oaks Elementary (rated 8.1/10, 1.8 miles away, in nearby Dayton), with a very similar rating. For more schools in Ellicott City, see our Ellicott City schools guide .

Nearby Schools

20 within 5.2 mi
School Distance Rating
Folly Quarter Middle Ellicott City 0.2 mi 7.7
Glenelg High Glenelg 1.4 mi 5.6
GLENELG COUNTRY SCHOOL Ellicott City 1.4 mi 8.1
Dayton Oaks Elementary Dayton 1.8 mi 8.1
West Friendship Elementary West Friendship 3.0 mi 9.2
GLENWOOD ACADEMY Glenwood 3.0 mi 6.0
Glenwood Middle Glenwood 3.2 mi 6.1
Bushy Park Elementary Glenwood 3.3 mi 7.4
BROOKFIELD CHRISTIAN SCHOOL Clarksville 4.5 mi
Mount View Middle Marriottsville 4.4 mi 6.6
Clarksville Elementary Clarksville 4.3 mi 5.7
Manor Woods Elementary Ellicott City 3.9 mi 8.1
ST LOUIS SCHOOL Clarksville 4.6 mi 4.9
Marriotts Ridge High Marriottsville 4.5 mi 5.7
River Hill High Clarksville 4.5 mi 5.5
NORTHCREST MONTESSORI Clarksville 4.7 mi
GLENWOOD COUNTRY DAY SCHOOL Woodbine 4.6 mi
CHAPELGATE CHRISTIAN ACADEMY Marriottsville 4.6 mi 8.2
Pointers Run Elementary Clarksville 6.0 mi 8.6
Homewood School Ellicott City 5.2 mi 5.0

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

Community Profile

The community surrounding Triadelphia Ridge Elementary has a median household income of $190,504. It is a well-educated community where 75% of adults hold a bachelor's degree or higher. The median home value in the area is $674,700, with a median rent of $2,253/month. The local poverty rate of 2.7% is relatively low. The average commute for residents is 29 minutes. Source: U.S. Census ACS 2022 5-Year Estimates.

Similar Schools

Schools in the same state with comparable level, size, and ratings

School Rating
Ashburton Elementary Bethesda, MD 8.0
Brunswick Elementary Brunswick, MD 8.0
Clear Spring Elementary Clear Spring, MD 8.0
Cora L. Rice Elementary Landover, MD 8.0
Fullerton Elementary Baltimore, MD 8.0
Green Valley Elementary Monrovia, MD 8.0

Frequently Asked Questions

Common questions about Triadelphia Ridge Elementary

What grades does Triadelphia Ridge Elementary serve?

Triadelphia Ridge Elementary serves students in grades Pre-K through 5th.

How many students attend Triadelphia Ridge Elementary?

Triadelphia Ridge Elementary has an enrollment of approximately 625 students.

What is the student-teacher ratio at Triadelphia Ridge Elementary?

The student-teacher ratio at Triadelphia Ridge Elementary is 13.6:1. A lower ratio generally means more individual attention per student. The national average is approximately 16:1 for public schools.

How does Triadelphia Ridge Elementary rank in MD?

Triadelphia Ridge Elementary is ranked #239 out of 1,363 schools in MD.

What is Triadelphia Ridge Elementary's MySchoolScout rating?

Triadelphia Ridge Elementary has a composite rating of 8.0 out of 10 on MySchoolScout. This score combines academic performance, student growth, and school environment into a single score. Equity data is shown separately for context.

What are the test scores at Triadelphia Ridge Elementary?

Based on the most recent state assessment data, Triadelphia Ridge Elementary has 69.2% math proficiency and 68.1% reading/ELA proficiency.

Is Triadelphia Ridge Elementary a charter school?

No, Triadelphia Ridge Elementary is not a charter school. It is a traditional public school operated by the local school district.

Is Triadelphia Ridge Elementary a Title I school?

No, Triadelphia Ridge Elementary is not currently a Title I school.

What does the Free & Reduced Lunch percentage mean for Triadelphia Ridge Elementary?

7.8% of students at Triadelphia Ridge Elementary qualify for free or reduced-price lunch. This is a commonly used indicator of economic need and provides important context when interpreting test scores.

11 schools nearby View map →

Neighborhood Context

Walk Score
11 Car-Dependent
Bike Score
19 Somewhat Bikeable

Powered by Walk Score

FBI UCR. County-level only.

Quick Facts NCES CCD (SY 2022-23)

Grades
Pre-K – 5th
Enrollment
625
Student-Teacher Ratio
13.6:1
Teachers (FTE)
46
Free/Reduced Lunch
7.8%
Type
regular
Setting
Fringe Rural
County
Howard County
Data Year
2023–2024

District

Howard County Public Schools
District Enrollment
57,633
Schools in District
78
Per-Pupil Spending
$19,256
District Rank
#19 of 76

How We Rate Schools

Every school receives a composite score from 1 to 10 based on four pillars: Academic Performance (50%), Student Growth (20%), Equity (15%), and Learning Environment (15%). Scores are built from publicly available data including standardized test results, enrollment figures, and school climate indicators.

Read our full methodology

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