Enrollment
1,231
Delaware · 2024-25 NCES data
High school (grades 9-12) · Middletown, DE
Federal NCES profile for Middletown High School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 55/100.
The verdict
Middletown High School earns 55/100 on the Resource Investment Index, with class sizes near the Delaware median.
Middletown High School has class sizes near the Delaware median. Computed live against every Delaware school reporting to NCES.
By Resource Investment Index, Middletown High School ranks #1 of 3 high schools in Middletown, DE.
NCES ID 100008000024 Verify on NCES CCD record →
Enrollment
1,231
Delaware · 2024-25 NCES data
Teachers (FTE)
95.0
Federal CCD staff survey
Students per teacher
13:1
vs 13.9:1 Delaware avg
-6% vs state
How Middletown High School compares with Delaware and U.S. medians
At or below state median
13:1 - 0.9 below the Delaware state median of 13.9:1, indicating smaller average class loads than typical schools in the state.
Middletown High School is a large high school in Middletown, Delaware, enrolling 1,231 students.
Class sizes run a bit leaner than typical: 13:1 puts it in the smaller third of Delaware schools by student-teacher ratio.
By headcount it is one of the larger campuses in Delaware, bigger than 93% of state schools at 1,231 students.
Its Resource Investment Index lands in the upper third of 222 scored Delaware schools.
Its student body is led by White (40%) and African American (36%) (diversity index 69/100).
On the academic-pipeline side it reports 23 Advanced Placement courses.
Counselor coverage is strong, about 205 students per counselor, inside the American School Counselor Association's recommended 250:1.
Attendance runs somewhat below the norm, with 24.0% of students chronically absent per the 2021-22 civil-rights collection.
Among Middletown's high schools, it stands alongside Appoquinimink High School (1,357 students): Middletown High School is smaller than that campus by headcount and runs leaner classes (13:1 vs 14.9:1).
Appoquinimink School District also operates Appoquinimink High School (1,357 students) and Odessa High School (1,254 students) alongside Middletown High 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
Middletown High 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 | 13:1 | ▼ 6% | 13.9:1 | 15.7:1 |
| Enrollment | 1,231 | top 7% | - | - |
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 40.0% of enrollment.
Simpson diversity index - at 68.9, Middletown High School is more mixed than the Delaware school average of 61.3.
District-wide per-pupil expenditure for Appoquinimink School District, which includes Middletown High 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 |
|---|---|---|---|
| Appoquinimink High School | Similar size | No free-lunch data | Higher S:T ratio |
| Odessa High School | Similar size | No free-lunch data | Higher S:T ratio |
| Waters (Alfred G.) Middle School | Similar size | No free-lunch data | Higher S:T ratio |
| Meredith (Everett) Middle School | Smaller | No free-lunch data | Higher S:T ratio |
| Cantwells Bridge Middle School | Smaller | No free-lunch data | Higher S:T ratio |
Comparisons are relative to Middletown High School's own figures; each column derives from NCES Common Core of Data.
2 comparable high schools (grades 9-12) 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 Middletown High 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.
Middletown High School has 1,231 students enrolled. It is a high school in Middletown, DE.
The student-teacher ratio at Middletown High School is 13:1, which is 6% lower than the Delaware average of 13.9:1 and 17% lower than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
The largest demographic group at Middletown High School is White at 40.0% of enrollment, in Middletown, DE. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 68.9/100.
Middletown High School has a Resource Investment Index of 55/100 (higher reported resources relative to schools nationally) based on 5 factors: student-teacher ratio, AP course offerings, counselor availability, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
By Resource Investment Index, Middletown High School ranks #1 of 3 high schools in Middletown, DE. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all high schools in Middletown on the city page.
Middletown High School earns 55/100 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 Middletown High School, Appoquinimink School District also operates Appoquinimink High School (1,357 students), Odessa High School (1,254 students), and Waters (Alfred G.) Middle School (935 students). See the Appoquinimink 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.
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PlainSchools, “Middletown High School, Middletown 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/middletown-high-school-de
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