- Enrollment
- 1,741
- Students per teacher
- 17.2:1
- Resource Index
- 52/100
Elementary school (grades K-5) · Ellicott City, MD
Triadelphia Ridge Elementary
Federal NCES profile for Triadelphia Ridge Elementary, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 49/100.
2024-25 NCES dataElementary school (grades K-5)NCES 240042001026
👥 S:T ratio 42
🌟 Gifted program 70
🎓 Counselors 0
📋 Attendance 86
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Triadelphia Ridge Elementary earns 49/100 on the Resource Investment Index, with class sizes near the Maryland median.
- #2 of 5
- elementary schools in Ellicott City · Resource Index
- 49
- Resource Index · Higher
- 14.4:1
- students per teacher
- 4.6%
- free-lunch eligible
Triadelphia Ridge Elementary has class sizes near the Maryland median. Computed live against every Maryland school reporting to NCES.
By Resource Investment Index, Triadelphia Ridge Elementary ranks #2 of 5 elementary schools in Ellicott City, MD.
School address
District: Howard County Public Schools · Maryland
NCES ID 240042001026 Verify on NCES CCD record →
CCD year-over-year · 2022-23 → 2023-24
+20 students YoY
Triadelphia Ridge Elementary held near 625 students from 2022-23 to 2023-24 (+20 headcount).
Teacher FTE added 43.9 → 46.3 across the same CCD years.
Source: NCES Common Core of Data public-school universe (2022-23, 2023-24).
Steady CCD campus
+20 students YoY 240042001026 · Ellicott City, MD Elementary · MID · TRAD
619 enr · 14.4:1 · 4.6% lunch · RII 49
Nearest enrollment peer: Marriotts Ridge High (1,741 students)
Triadelphia Ridge Elementary held near 625 students from 2022-23 to 2023-24 (+20 headcount). Teacher FTE added 43.9 → 46.3 across the same CCD years. Read with this school → · District book → · Maryland schools → · Find another →
Triadelphia Ridge Elementary in the enrollment neighbourhood
Fall enrollment among this campus and nearest district peers
- Marriotts Ridg
Marriotts Ridge High
1,741 students
- Reservoir High
Reservoir High
1,597 students
- Atholton High
Atholton High
1,540 students
- Howard High
Howard High
1,493 students
- Mount Hebron H
Mount Hebron High
1,455 students
- This school 619
Triadelphia Ridge Elementary
619 students
What this shows Triadelphia Ridge Elementary reports 619 students on the CCD universe file.
How Triadelphia Ridge Elementary compares
Triadelphia Ridge Elementary held steady on CCD headcount: ratios and free-lunch share vs Maryland and U.S. means.
| Metric | This school | vs Maryland | Maryland avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 14.4:1 | ▼ 1% | 14.5:1 | 15.7:1 |
| Free-lunch eligible | 4.6% | ▼ 91% | 49.0% | 51.7% |
| Enrollment | 619 | top 38% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
14.4:1
Leaner classes than 53% of US schools, a middle-of-the-pack class size.
619
Bigger than 74% of US schools by enrollment, mid-sized for the country.
Equity indicators methodology
Economic need
4.6%
free-lunch eligible
- 91% below the Maryland average of 49.0%
Below the 40% Title I threshold, among the lower-need profiles in the state; federal aid targets individual qualifying students rather than schoolwide programs.
Staffing depth
14.4:1
students per teacher
- 1% below state mean
Top 49% in Maryland - lower ratio than 51% of state schools
Close to the 15:1 benchmark most often cited for individualized attention.
Engagement
5.8%
chronically absent (missed 10%+ of school days)
In the 5-10% range, close to the pre-pandemic national baseline.
Funding equity
$19,256
per pupil, district-wide
- above Maryland avg of $18,753
Somewhat above the U.S. public-school average, reflecting higher local or state investment per enrolled student.
Support staff
Counselors1.0 FTE
Per 619 students, the combined health-and-guidance staffing load for this school.
Discipline context
0
in-school suspensions + 5 out-of-school
Suspension rate: 0.0 per 100 students. Combined in-school and out-of-school rate: 0.8 per 100 students. Reported via the Civil Rights Data Collection.
Student demographics
Asian 43.8%
White 38.1%
African American 7.1%
Two or More 6.3%
Hispanic or Latino 4.2%
American Indian / Alaska Native 0.5%
Largest group: Asian at 43.8% of enrollment.
Student-body diversity index 65.2/100
Simpson diversity index - at 65.2, Triadelphia Ridge Elementary is more mixed than the Maryland school average of 52.3.
Programs
Gifted & talented Yes
District finance for Howard County Public Schools reports $19,256 per pupil (NCES F-33) - open the district page for the full revenue mix.
How Triadelphia Ridge Elementary Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Marriotts Ridge High | Larger | Similar economic need | Higher S:T ratio |
| Reservoir High | Larger | Higher economic need | Similar S:T ratio |
| Atholton High | Larger | Higher economic need | Higher S:T ratio |
| Howard High | Larger | Higher economic need | Similar S:T ratio |
| Mount Hebron High | Larger | Higher economic need | Similar S:T ratio |
Comparisons are relative to Triadelphia Ridge Elementary's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 1,597
- Students per teacher
- 13.2:1
- Resource Index
- 49/100
- Enrollment
- 1,540
- Students per teacher
- 16.4:1
- Resource Index
- 46/100
- Enrollment
- 1,493
- Students per teacher
- 13.5:1
- Resource Index
- 52/100
- Enrollment
- 1,455
- Students per teacher
- 13.7:1
- Resource Index
- 50/100
Similar elementary schools in Ellicott City
4 comparable elementary schools (grades K-5) serving the same city.
Northfield Elementary
Standard public school
764 students 15.6:1 students per teacher
Manor Woods Elementary
Standard public school
697 students 14.2:1 students per teacher
Hollifield Station Elementary
Standard public school
677 students 13:1 students per teacher
St. Johns Lane Elementary
Standard public school
636 students 14.5:1 students per teacher
Nationwide elementary schools with similar size or staffing
Out-of-state peers matched by enrollment and by student-teacher ratio, not the same-city or same-district lists above.
Similar enrollment (~619 students)
Frequently asked questions about Triadelphia Ridge Elementary
How many students attend Triadelphia Ridge Elementary?
Triadelphia Ridge Elementary has 619 students enrolled. It is an elementary school in Ellicott City, MD. CCD year-over-year: 605 (2022-23) → 625 (2023-24), nearly flat (+20).
What is the student-teacher ratio at Triadelphia Ridge Elementary?
The student-teacher ratio at Triadelphia Ridge Elementary is 14.4:1, which is 1% lower than the Maryland average of 14.5:1 and 8% lower than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
What percentage of students receive free lunch at Triadelphia Ridge Elementary?
4.6% of students at Triadelphia Ridge Elementary are eligible for free lunch, compared to the Maryland average of 49.0%.
What is the racial and ethnic makeup of Triadelphia Ridge Elementary?
The largest demographic group at Triadelphia Ridge Elementary is Asian at 43.8% of enrollment, in Ellicott City, MD. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 65.2/100.
What is the Resource Investment Index for Triadelphia Ridge Elementary?
Triadelphia Ridge Elementary has a Resource Investment Index of 49/100 (higher reported resources relative to schools nationally) based on 4 factors: student-teacher ratio, gifted-program reporting, counselor availability, chronic absenteeism. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Triadelphia Ridge Elementary rank among elementary schools in Ellicott City?
By Resource Investment Index, Triadelphia Ridge Elementary ranks #2 of 5 elementary schools in Ellicott City, MD. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all elementary schools in Ellicott City on the city page.
What other schools are in Howard County Public Schools?
Besides Triadelphia Ridge Elementary, Howard County Public Schools also operates Marriotts Ridge High (1,741 students), Reservoir High (1,597 students), and Atholton High (1,540 students). See the Howard County Public Schools district page for the complete list.