Enrollment
122
Maryland · 2024-25 NCES data
Other / mixed grade configuration · Aberdeen, MD
Federal NCES profile for Center for Educational Opportunity, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 55/100.
The verdict
Center for Educational Opportunity earns 55/100 on the Resource Investment Index, with class sizes smaller than 97% of Maryland schools. It is also one of the smallest schools in Maryland.
Center for Educational Opportunity has class sizes smaller than 97% of Maryland schools. Computed live against every Maryland school reporting to NCES.
By Resource Investment Index, Center for Educational Opportunity ranks #1 of 5 schools in Aberdeen, MD.
NCES ID 240039000480 Verify on NCES CCD record →
Enrollment
122
Maryland · 2024-25 NCES data
Teachers (FTE)
19.0
Federal CCD staff survey
Students per teacher
6.4:1
vs 14.5:1 Maryland avg
-56% vs state
Free-lunch eligible
82.1%
vs 49.0% Maryland avg
+68% vs state
How Center for Educational Opportunity compares with Maryland and U.S. medians
Smaller classes than state median
6.4:1 - 8.1 below the Maryland state median of 14.5:1, indicating smaller average class loads than typical schools in the state.
Center for Educational Opportunity is a high-poverty, small combined-grade school in Aberdeen, Maryland, enrolling 122 students.
Classes run notably small here: at 6.4:1, Center for Educational Opportunity is leaner than roughly 97% of Maryland schools and 56% under the state's 14.5:1 norm, more adult attention per pupil than most peers.
Economic need is high: 82.1% of students qualify for free meals, 68% above the Maryland average, a Title I-weighted population that federal funding formulas prioritise.
This is a small campus: fewer students than 96% of Maryland schools, with 122 enrolled.
Its Resource Investment Index outscores 92% of the 1,382 Maryland schools with a score on record, a top-tier result on this measure.
Its student body is led by White (43%) and African American (32%) (diversity index 69/100).
Counselor coverage is strong, about 122 students per counselor, inside the American School Counselor Association's recommended 250:1.
Chronic absenteeism is elevated: 71.3% 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.
Among Aberdeen's public schools, it stands alongside G. Lisby Elementary at Hillsdale (528 students): Center for Educational Opportunity is smaller than that campus by headcount and runs leaner classes (6.4:1 vs 14.3:1).
Harford County Public Schools also operates Edgewood High (1,440 students) and Aberdeen High (1,396 students) alongside Center for Educational Opportunity.
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
Center for Educational Opportunity on the metrics families compare, against Maryland and U.S. means.
| Metric | This school | vs Maryland | Maryland avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 6.4:1 | ▼ 56% | 14.5:1 | 15.7:1 |
| Free-lunch eligible | 82.1% | ▲ 68% | 49.0% | 51.7% |
| Enrollment | 122 | top 96% | - | - |
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: White at 42.6% of enrollment.
Simpson diversity index - at 68.9, Center for Educational Opportunity is more mixed than the Maryland school average of 52.3.
District-wide per-pupil expenditure for Harford County Public Schools, which includes Center for Educational Opportunity.
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 | Lower economic need | Higher S:T ratio |
| Aberdeen High | Larger | Lower economic need | Higher S:T ratio |
| Bel Air High | Larger | Lower economic need | Higher S:T ratio |
| C. Milton Wright High | Larger | Lower economic need | Higher S:T ratio |
| North Harford High | Larger | Lower economic need | Higher S:T ratio |
Comparisons are relative to Center for Educational Opportunity's own figures; each column derives from NCES Common Core of Data.
4 comparable other schools (grades Mixed) serving the same city.
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 Center for Educational Opportunity'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.
Center for Educational Opportunity has 122 students enrolled. It is an alternative school in Aberdeen, MD.
The student-teacher ratio at Center for Educational Opportunity is 6.4:1, which is 56% lower than the Maryland average of 14.5:1 and 59% lower than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
82.1% of students at Center for Educational Opportunity are eligible for free lunch, compared to the Maryland average of 49.0%.
The largest demographic group at Center for Educational Opportunity is White at 42.6% of enrollment, in Aberdeen, MD. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 68.9/100.
Center for Educational Opportunity has a Resource Investment Index of 55/100 (higher 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, Center for Educational Opportunity ranks #1 of 5 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 schools in Aberdeen on the city page.
Center for Educational Opportunity earns 55/100 on the Resource Investment Index, with class sizes smaller than 97% of Maryland schools. It is also one of the smallest schools in Maryland. 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 Center for Educational Opportunity, 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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Last updated:
PlainSchools, “Center for Educational Opportunity, 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/center-for-educational-opportunity-md
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