Enrollment
1,071
Maryland · 2024-25 NCES data
Middle school (grades 6-8) · Aberdeen, MD
Federal NCES profile for Aberdeen Middle, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 30/100.
The verdict
Aberdeen Middle earns 30/100 on the Resource Investment Index, even as it posts class sizes smaller than 80% of Maryland schools.
Aberdeen Middle has class sizes smaller than 80% of Maryland schools. Computed live against every Maryland school reporting to NCES.
By Resource Investment Index, Aberdeen Middle ranks #5 of 7 public schools in Aberdeen, MD.
NCES ID 240039000678 Verify on NCES CCD record →
Enrollment
1,071
Maryland · 2024-25 NCES data
Teachers (FTE)
88.0
Federal CCD staff survey
Students per teacher
12.2:1
vs 14.5:1 Maryland avg
-16% vs state
Free-lunch eligible
57.4%
vs 49.0% Maryland avg
+17% vs state
How Aberdeen Middle compares with Maryland and U.S. medians
Smaller classes than state median
12.2:1 - 2.3 below the Maryland state median of 14.5:1, indicating smaller average class loads than typical schools in the state.
Aberdeen Middle is a higher-need, large middle school in Aberdeen, Maryland, enrolling 1,071 students.
Class sizes run a bit leaner than typical: 12.2:1 puts it in the smaller third of Maryland schools by student-teacher ratio.
Economic need runs somewhat above the state's typical profile, with 57.4% of students eligible for free meals.
Enrollment of 1,071 puts it in the larger third of Maryland schools by headcount.
Its Resource Investment Index trails 93% of the 1,382 Maryland schools with a score on record, one of the lower results on this measure.
Among 167 similarly sized, similarly resourced-need Maryland schools statewide, it ranks #142, in the lower tier once campus size and economic need are matched.
Its student body is led by African American (47%) and White (28%) (diversity index 67/100).
Counselor access is stretched at roughly 536 students per counselor, well above the ASCA-recommended 250:1 ceiling.
Chronic absenteeism is elevated: 40.1% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
The surrounding Harford County Public Schools spends $15,192 per pupil, 26% below the Maryland average, a leaner-resourced district than most.
Harford County Public Schools also operates Edgewood High (1,440 students) and Aberdeen High (1,396 students) alongside Aberdeen 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
Aberdeen 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 | 12.2:1 | ▼ 16% | 14.5:1 | 15.7:1 |
| Free-lunch eligible | 57.4% | ▲ 17% | 49.0% | 51.7% |
| Enrollment | 1,071 | top 12% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
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.
Largest group: African American at 46.8% of enrollment.
Simpson diversity index - at 67.3, Aberdeen Middle is more mixed than the Maryland school average of 52.3.
District-wide per-pupil expenditure for Harford County Public Schools, which includes Aberdeen Middle.
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.
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Edgewood High | Larger | Similar economic need | Higher S:T ratio |
| Aberdeen High | Larger | Similar economic need | Higher S:T ratio |
| Bel Air High | Larger | Lower economic need | Higher S:T ratio |
| C. Milton Wright High | Similar size | Lower economic need | Higher S:T ratio |
| North Harford High | Similar size | Lower economic need | Higher S:T ratio |
Comparisons are relative to Aberdeen Middle's own figures; each column derives from NCES Common Core of Data.
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.
Next steps
Verify locally before acting on Aberdeen Middle's federal record.
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.
Aberdeen Middle has 1,071 students enrolled. It is a middle school in Aberdeen, MD.
The student-teacher ratio at Aberdeen Middle is 12.2:1, which is 16% lower than the Maryland average of 14.5:1 and 22% lower than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
57.4% of students at Aberdeen Middle are eligible for free lunch, compared to the Maryland average of 49.0%.
The largest demographic group at Aberdeen Middle is African American at 46.8% of enrollment, in Aberdeen, MD. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 67.3/100.
Aberdeen Middle has a Resource Investment Index of 30/100 (lower 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).
By Resource Investment Index, Aberdeen Middle ranks #5 of 7 public schools in Aberdeen, MD. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all public schools in Aberdeen on the city page.
Aberdeen Middle earns 30/100 on the Resource Investment Index, even as it posts class sizes smaller than 80% of Maryland schools. 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.
Besides Aberdeen Middle, Harford County Public Schools also operates Edgewood High (1,440 students), Aberdeen High (1,396 students), and Bel Air High (1,341 students). See the Harford County Public Schools district page for the complete list.
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.
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PlainSchools, “Aberdeen Middle, Aberdeen MD.” Compiled from NCES Common Core of Data, Civil Rights Data Collection, and the NCES F-33 finance survey; data as of June 2026. https://plainschools.com/schools/aberdeen-middle-md
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