Enrollment
958
Maryland · 2024-25 NCES data
Middle school (grades 6-8) · Millersville, MD
Federal NCES profile for Old Mill Middle North, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 49/100.
The verdict
Old Mill Middle North earns 49/100 on the Resource Investment Index, with class sizes smaller than 72% of Maryland schools. It is also more racially and ethnically mixed than most Maryland schools.
Old Mill Middle North has class sizes smaller than 72% of Maryland schools. Computed live against every Maryland school reporting to NCES.
By Resource Investment Index, Old Mill Middle North ranks #3 of 6 public schools in Millersville, MD.
NCES ID 240006000107 Verify on NCES CCD record →
Enrollment
958
Maryland · 2024-25 NCES data
Teachers (FTE)
74.0
Federal CCD staff survey
Students per teacher
12.9:1
vs 14.5:1 Maryland avg
-11% vs state
Free-lunch eligible
55.8%
vs 49.0% Maryland avg
+14% vs state
How Old Mill Middle North compares with Maryland and U.S. medians
At or below state median
12.9:1 - 1.6 below the Maryland state median of 14.5:1, indicating smaller average class loads than typical schools in the state.
Old Mill Middle North is a higher-need, large middle school in Millersville, Maryland, enrolling 958 students.
Class sizes run a bit leaner than typical: 12.9:1 puts it in the smaller third of Maryland schools by student-teacher ratio.
Its free-meal eligibility rate of 55.8% lands close to the Maryland typical range, neither a high- nor low-need campus by this measure.
Enrollment of 958 puts it in the larger third of Maryland schools by headcount.
Its Resource Investment Index lands in the upper third of 1,382 scored Maryland schools.
Against 200 statewide peers matched on enrollment and economic need, it ranks in the upper tier at #24.
Its student body is led by White (36%) and African American (28%), more mixed than most schools in the state (diversity index 74/100).
Counselor coverage is strong, about 240 students per counselor, inside the American School Counselor Association's recommended 250:1.
Chronic absenteeism is elevated: 29.1% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
Discipline events run high: 193 in- and out-of-school suspensions were reported for 958 students in the 2021-22 Civil Rights Data Collection.
Among Millersville's middle schools, it stands alongside Old Mill Middle South (1,173 students): Old Mill Middle North is smaller than that campus by headcount and runs leaner classes (12.9:1 vs 16.1:1).
Anne Arundel County Public Schools also operates Glen Burnie High (2,226 students) and North County High (2,161 students) alongside Old Mill Middle North.
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
Old Mill Middle North on the metrics families compare, against Maryland and U.S. means.
| Metric | This school | vs Maryland | Maryland avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 12.9:1 | ▼ 11% | 14.5:1 | 15.7:1 |
| Free-lunch eligible | 55.8% | ▲ 14% | 49.0% | 51.7% |
| Enrollment | 958 | top 15% | - | - |
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 36.1% of enrollment.
Simpson diversity index - at 74.1, Old Mill Middle North is more mixed than the Maryland school average of 52.3.
District-wide per-pupil expenditure for Anne Arundel County Public Schools, which includes Old Mill Middle North.
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 |
|---|---|---|---|
| Glen Burnie High | Larger | Similar economic need | Higher S:T ratio |
| North County High | Larger | Similar economic need | Higher S:T ratio |
| Broadneck High | Larger | Lower economic need | Higher S:T ratio |
| Annapolis High | Larger | Similar economic need | Similar S:T ratio |
| Meade High | Larger | Similar economic need | Higher S:T ratio |
Comparisons are relative to Old Mill Middle North's own figures; each column derives from NCES Common Core of Data.
1 comparable middle schools (grades 6-8) 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 Old Mill Middle North'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.
Old Mill Middle North has 958 students enrolled. It is a middle school in Millersville, MD.
The student-teacher ratio at Old Mill Middle North is 12.9:1, which is 11% lower than the Maryland average of 14.5:1 and 18% lower than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
55.8% of students at Old Mill Middle North are eligible for free lunch, compared to the Maryland average of 49.0%.
The largest demographic group at Old Mill Middle North is White at 36.1% of enrollment, in Millersville, MD. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 74.1/100.
Old Mill Middle North has a Resource Investment Index of 49/100 (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, Old Mill Middle North ranks #3 of 6 public schools in Millersville, 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 Millersville on the city page.
Old Mill Middle North earns 49/100 on the Resource Investment Index, with class sizes smaller than 72% of Maryland schools. It is also more racially and ethnically mixed than most 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 Old Mill Middle North, Anne Arundel County Public Schools also operates Glen Burnie High (2,226 students), North County High (2,161 students), and Broadneck High (2,143 students). See the Anne Arundel 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, “Old Mill Middle North, Millersville 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/old-mill-middle-north-md
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