Enrollment
615
Delaware · 2024-25 NCES data
Middle school (grades 6-8) · New Castle, DE
Federal NCES profile for Mccullough (Calvin R. ) Middle School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 28/100.
The verdict
Mccullough (Calvin R. ) Middle School earns 28/100 on the Resource Investment Index, with class sizes near the Delaware median.
Mccullough (Calvin R. ) Middle School has class sizes near the Delaware median. Computed live against every Delaware school reporting to NCES.
By Resource Investment Index, Mccullough (Calvin R. ) Middle School ranks #1 of 3 middle schools in New Castle, DE.
NCES ID 100023000271 Verify on NCES CCD record →
Enrollment
615
Delaware · 2024-25 NCES data
Teachers (FTE)
42.0
Federal CCD staff survey
Students per teacher
14.6:1
vs 13.9:1 Delaware avg
+5% vs state
How Mccullough (Calvin R. ) Middle School compares with Delaware and U.S. medians
Slightly above state median
14.6:1 - 0.7 above the Delaware state median of 13.9:1, indicating larger average class loads than typical schools in the state.
Mccullough (Calvin R. ) Middle School is a mid-sized middle school in New Castle, Delaware, enrolling 615 students.
Class loads run somewhat heavier than typical: 14.6:1 puts it in the larger third of Delaware schools by student-teacher ratio.
With 615 students, its enrollment sits close to the Delaware median campus size.
Its Resource Investment Index lands in the lower third of 222 scored Delaware schools.
Its student body is led by African American (45%) and Hispanic or Latino (38%) (diversity index 64/100).
Counselor coverage runs a bit thin, about 308 students per counselor, somewhat past the ASCA-recommended 250:1 benchmark.
Chronic absenteeism is elevated: 67.0% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
Discipline events run high: 338 in- and out-of-school suspensions were reported for 615 students in the 2021-22 Civil Rights Data Collection.
The federal civil-rights collection also records 7 expulsions at this campus for 2021-22.
Among New Castle's middle schools, it stands alongside Bedford (Gunning) Middle School (846 students): Mccullough (Calvin R. ) Middle School is smaller than that campus by headcount and runs leaner classes (14.6:1 vs 15.7:1).
Colonial School District also operates Penn (William) High School (2,069 students) and Wilbur (Kathleen H.) Elementary (1,052 students) alongside Mccullough (Calvin R. ) Middle School.
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
Mccullough (Calvin R. ) Middle School on the metrics families compare, against Delaware and U.S. means.
| Metric | This school | vs Delaware | Delaware avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 14.6:1 | ▲ 5% | 13.9:1 | 15.7:1 |
| Enrollment | 615 | top 37% | - | - |
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 45.4% of enrollment.
Simpson diversity index - at 63.7, Mccullough (Calvin R. ) Middle School is more mixed than the Delaware school average of 61.3.
District-wide per-pupil expenditure for Colonial School District, which includes Mccullough (Calvin R. ) Middle School.
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 |
|---|---|---|---|
| Penn (William) High School | Larger | No free-lunch data | Higher S:T ratio |
| Wilbur (Kathleen H.) Elementary | Larger | No free-lunch data | Similar S:T ratio |
| Bedford (Gunning) Middle School | Larger | No free-lunch data | Similar S:T ratio |
| Southern Elementary School | Similar size | No free-lunch data | Lower S:T ratio |
| Read (George) Middle School | Similar size | No free-lunch data | Lower S:T ratio |
Comparisons are relative to Mccullough (Calvin R. ) Middle School's own figures; each column derives from NCES Common Core of Data.
2 comparable middle schools (grades 6-8) serving the same city.
Matched by enrollment size and by staffing ratio across all of Delaware, not just this city - a different peer set than the local comparisons above.
Next steps
Verify locally before acting on Mccullough (Calvin R. ) Middle School'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.
Mccullough (Calvin R. ) Middle School has 615 students enrolled. It is a middle school in New Castle, DE.
The student-teacher ratio at Mccullough (Calvin R. ) Middle School is 14.6:1, which is 5% higher than the Delaware average of 13.9:1 and 7% lower than the national average of 15.7:1.
The largest demographic group at Mccullough (Calvin R. ) Middle School is African American at 45.4% of enrollment, in New Castle, DE. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 63.7/100.
Mccullough (Calvin R. ) Middle School has a Resource Investment Index of 28/100 (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, Mccullough (Calvin R. ) Middle School ranks #1 of 3 middle schools in New Castle, DE. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all middle schools in New Castle on the city page.
Mccullough (Calvin R. ) Middle School earns 28/100 on the Resource Investment Index, with class sizes near the Delaware 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.
Besides Mccullough (Calvin R. ) Middle School, Colonial School District also operates Penn (William) High School (2,069 students), Wilbur (Kathleen H.) Elementary (1,052 students), and Bedford (Gunning) Middle School (846 students). See the Colonial School District 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.
Published by
PlainSchools Editorial
Independent public-data reference that compiles, verifies, and contextualizes official datasets. We do not accept compensation from entities we cover, and every dataset cites its originating public source.
Last updated:
PlainSchools, “Mccullough (Calvin R. ) Middle School, New Castle DE.” 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/mccullough-calvin-r-middle-school-de
You are welcome to quote these figures with attribution to PlainSchools and the underlying source. The URL above is stable.