Enrollment
1,064
Maryland · 2024-25 NCES data
Middle school (grades 6-8) · Baltimore, MD
Dumbarton Middle
Federal NCES profile for Dumbarton Middle, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 44/100.
2024-25 NCES dataMiddle school (grades 6-8)NCES 240012000374
👥 S:T ratio 43
🌟 Gifted program 70
🎓 Counselors 29
📋 Attendance 34
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Dumbarton Middle earns 44/100 on the Resource Investment Index, with class sizes near the Maryland median.
- #13 of 27
- middle schools in Baltimore · Resource Index
- 44
- Resource Index · Typical
- 14.2:1
- students per teacher
- 28.1%
- free-lunch eligible
Dumbarton Middle has class sizes near the Maryland median. Computed live against every Maryland school reporting to NCES.
By Resource Investment Index, Dumbarton Middle ranks #13 of 27 middle schools in Baltimore, MD.
School address
District: Baltimore County Public Schools · Maryland
NCES ID 240012000374 Verify on NCES CCD record →
Teachers (FTE)
75.0
Federal CCD staff survey
Students per teacher
14.2:1
vs 14.5:1 Maryland avg
-2% vs state
Free-lunch eligible
28.1%
vs 49.0% Maryland avg
-43% vs state
Student-teacher ratio in context
How Dumbarton Middle compares with Maryland and U.S. medians
What stands out at Dumbarton Middle
Dumbarton Middle is a large middle school in Baltimore, Maryland, enrolling 1,064 students.
At 14.2:1, its student-teacher ratio sits close to the Maryland median, within a few percentage points of the 14.5:1 state norm, neither notably crowded nor notably small.
Economic need runs somewhat below the state's typical profile, with 28.1% of students eligible for free meals.
Enrollment of 1,064 puts it in the larger third of Maryland schools by headcount.
Its Resource Investment Index sits near the middle of the pack among 1,382 scored Maryland schools.
Against 163 statewide peers matched on enrollment and economic need, it ranks mid-pack at #75.
Its student body is led by White (52%) and African American (23%) (diversity index 66/100).
Counselor availability sits well past the ASCA benchmark, roughly 355 students sharing each counselor, though short of the most stretched campuses.
Chronic absenteeism is elevated: 26.5% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
Among Baltimore's middle schools, it stands alongside Perry Hall Middle (1,582 students): Dumbarton Middle is smaller than that campus by headcount and runs leaner classes (14.2:1 vs 14.9:1).
Baltimore County Public Schools also operates Dundalk High (2,087 students) and Perry Hall High (2,012 students) alongside Dumbarton Middle.
Sourced from NCES CCD, CRDC, and F-33 (federal records, not a quality verdict). How we source and compute this.
Source: National Center for Education Statistics Common Core of Data + CRDC + F-33 · 2024-25
How Dumbarton Middle compares
Dumbarton Middle on the metrics families compare, against Maryland and U.S. means.
| Metric | This school | vs Maryland | Maryland avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 14.2:1 | ▼ 2% | 14.5:1 | 15.7:1 |
| Free-lunch eligible | 28.1% | ▼ 43% | 49.0% | 51.7% |
| Enrollment | 1,064 | top 12% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
14.2:1
Leaner classes than 55% of US schools, a middle-of-the-pack class size.
1,064
Bigger than 92% of US schools by enrollment, a large campus nationally.
Equity indicators (what these measure)
Economic need
28.1%
free-lunch eligible
- 43% below the Maryland average of 49.0%
Below the 40% Title I threshold; federal aid targets individual qualifying students rather than schoolwide programs.
Staffing depth
14.2:1
students per teacher
- 2% below state mean
Top 46% in Maryland - lower ratio than 54% of state schools
Close to the 15:1 benchmark most often cited for individualized attention.
Engagement
26.5%
chronically absent (missed 10%+ of school days)
At or above 20%, the commonly used threshold for "high" chronic absenteeism, signaling significant barriers to regular attendance.
Funding equity
$16,538
per pupil, district-wide
- below Maryland avg of $20,446
Close to the U.S. public-school average per-pupil spend.
Support staff
Counselors3.0 FTE
Per 355 students, the combined health-and-guidance staffing load for this school.
Discipline context
11
in-school suspensions + 69 out-of-school
Suspension rate: 1.0 per 100 students. Combined in-school and out-of-school rate: 7.5 per 100 students. Reported via the Civil Rights Data Collection.
Overview
- Common Core of Data (June 2026): enrollment, staffing, and the student-teacher ratio above.
- Civil Rights Data Collection: discipline counts and program access (AP, gifted, special education).
- F-33 School District Finance Survey: the district-wide per-pupil spending figures below.
Three separate federal collections, each on its own reporting cadence - which is why this school's numbers line up on a consistent basis against every other school and state on this site, rather than mixing figures pulled from different survey years.
Student demographics
White 51.7%
African American 22.8%
Hispanic or Latino 12.7%
Asian 7.5%
Two or More 5.2%
American Indian / Alaska Native 0.1%
Largest group: White at 51.7% of enrollment.
Student-body diversity index 65.6/100
Simpson diversity index - at 65.6, Dumbarton Middle is more mixed than the Maryland school average of 52.3.
Programs
Gifted & talented Yes
Funding & spending
District-wide per-pupil expenditure for Baltimore County Public Schools, which includes Dumbarton Middle.
$16,538
Per student
-19%
vs Maryland
Avg $20,446
0%
vs U.S.
Avg $16,593
Revenue mix
Local 47.3%
State 40.7%
Federal 12.0%
Source: NCES F-33 School District Finance Survey District-level finance · FY 2021-22 Per-pupil expenditure reflects the district-wide average. Individual school budgets are not reported at the federal level.
How Dumbarton Middle Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Dundalk High | Larger | Higher economic need | Similar S:T ratio |
| Perry Hall High | Larger | Higher economic need | Higher S:T ratio |
| Woodlawn High | Larger | Higher economic need | Higher S:T ratio |
| Kenwood High | Larger | Higher economic need | Higher S:T ratio |
| Dulaney High | Larger | Similar economic need | Higher S:T ratio |
Comparisons are relative to Dumbarton Middle's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 2,087
- Students per teacher
- 15.5:1
- Resource Index
- 48/100
- Enrollment
- 2,012
- Students per teacher
- 16.6:1
- Resource Index
- 39/100
- Enrollment
- 1,922
- Students per teacher
- 17:1
- Resource Index
- 46/100
- Enrollment
- 1,900
- Students per teacher
- 16.5:1
- Resource Index
- 45/100
- Enrollment
- 1,889
- Students per teacher
- 17.5:1
- Resource Index
- 43/100
Similar middle schools in Baltimore
6 comparable middle schools (grades 6-8) serving the same city.
Perry Hall Middle
Standard public school
1,582 students 14.9:1 students per teacher
Arbutus Middle
Standard public school
974 students 16.8:1 students per teacher
Pikesville Middle
Standard public school
943 students 15.7:1 students per teacher
Golden Ring Middle
Standard public school
903 students 17:1 students per teacher
Parkville Middle
Standard public school
900 students 13.6:1 students per teacher
Southwest Academy
Standard public school
842 students 16.2:1 students per teacher
Similar middle schools statewide
Matched by enrollment size and by staffing ratio across all of Maryland, not just this city - a different peer set than the local comparisons above.
Similar enrollment (~1,064 students)
Similar student-teacher ratio (~14.2:1)
Next steps
Verify locally before acting on Dumbarton Middle's federal record.
- Compare Dumbarton Middle against another school. Compare schools
- Baltimore County Public Schools's spending and staffing shape this school. District profile
- Confirm current enrollment and boundaries with the school. Choosing guide
Federal record (CCD 2024-25, CRDC 2021-22) - PlainSchools assigns no subjective rating; the composite quality score is a transparent, reproducible index computed from this cited federal data.
Frequently asked questions about Dumbarton Middle
How many students attend Dumbarton Middle?
Dumbarton Middle has 1,064 students enrolled. It is a middle school in Baltimore, MD.
What is the student-teacher ratio at Dumbarton Middle?
The student-teacher ratio at Dumbarton Middle is 14.2:1, which is 2% lower than the Maryland average of 14.5:1 and 10% 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 Dumbarton Middle?
28.1% of students at Dumbarton Middle are eligible for free lunch, compared to the Maryland average of 49.0%.
What is the racial and ethnic makeup of Dumbarton Middle?
The largest demographic group at Dumbarton Middle is White at 51.7% of enrollment, in Baltimore, MD. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 65.6/100.
What is the Resource Investment Index for Dumbarton Middle?
Dumbarton Middle has a Resource Investment Index of 44/100 (typical reported resources relative to schools nationally) based on 4 factors: student-teacher ratio, counselor availability, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Dumbarton Middle rank among middle schools in Baltimore?
By Resource Investment Index, Dumbarton Middle ranks #13 of 27 middle schools in Baltimore, MD. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all middle schools in Baltimore on the city page.
Is Dumbarton Middle a good school?
Dumbarton Middle earns 44/100 on the Resource Investment Index, with class sizes near the Maryland median. This is a resource snapshot, not an academic rating; see the Resource Investment Index question above for what the number does and doesn't measure.
What other schools are in Baltimore County Public Schools?
Besides Dumbarton Middle, Baltimore County Public Schools also operates Dundalk High (2,087 students), Perry Hall High (2,012 students), and Woodlawn High (1,922 students). See the Baltimore County Public Schools district page for the complete list.
Related tools
Every figure on PlainSchools is rendered directly from the source NCES, CRDC and F-33 federal records, no number is typed in by an editor. Each school's figures reflect its most recent NCES/CRDC submission on file. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of June 2026.