Enrollment
726
Delaware · 2024-25 NCES data
Middle school (grades 6-8) · Millsboro, DE
Millsboro Middle School
Federal NCES profile for Millsboro Middle School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 38/100.
2024-25 NCES dataMiddle school (grades 6-8)NCES 100068000303
👥 S:T ratio 45
🌟 Gifted program 30
🎓 Counselors 52
📋 Attendance 27
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Millsboro Middle School earns 38/100 on the Resource Investment Index, with class sizes near the Delaware median.
- #3 of 3
- public schools in Millsboro · Resource Index
- 38
- Resource Index · Typical
- 13.7:1
- students per teacher
- 726
- students enrolled
Millsboro Middle School has class sizes near the Delaware median. Computed live against every Delaware school reporting to NCES.
By Resource Investment Index, Millsboro Middle School ranks #3 of 3 public schools in Millsboro, DE.
School address
District: Indian River School District · Delaware
NCES ID 100068000303 Verify on NCES CCD record →
Teachers (FTE)
53.0
Federal CCD staff survey
Students per teacher
13.7:1
vs 13.9:1 Delaware avg
-1% vs state
Student-teacher ratio in context
How Millsboro Middle School compares with Delaware and U.S. medians
What stands out at Millsboro Middle School
Millsboro Middle School is a mid-sized middle school in Millsboro, Delaware, enrolling 726 students.
At 13.7:1, its student-teacher ratio sits close to the Delaware median, within a few percentage points of the 13.9:1 state norm, neither notably crowded nor notably small.
Enrollment of 726 puts it in the larger third of Delaware schools by headcount.
Its Resource Investment Index sits near the middle of the pack among 222 scored Delaware schools.
Its student body is led by White (47%) and Hispanic or Latino (29%) (diversity index 67/100).
Counselor coverage is strong, about 242 students per counselor, inside the American School Counselor Association's recommended 250:1.
Chronic absenteeism is elevated: 29.2% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
Discipline events run high: 247 in- and out-of-school suspensions were reported for 726 students in the 2021-22 Civil Rights Data Collection.
The federal civil-rights collection also records 6 expulsions at this campus for 2021-22.
Indian River School District also operates Sussex Central High School (2,012 students) and Indian River High School (1,073 students) alongside Millsboro 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
How Millsboro Middle School compares
Millsboro 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 | 13.7:1 | ▼ 1% | 13.9:1 | 15.7:1 |
| Enrollment | 726 | top 30% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
13.7:1
Leaner classes than 60% of US schools, a middle-of-the-pack class size.
726
Bigger than 82% of US schools by enrollment, a large campus nationally.
Equity indicators (what these measure)
Staffing depth
13.7:1
students per teacher
- 1% below state mean
Top 50% in Delaware - lower ratio than 50% of state schools
Close to the 15:1 benchmark most often cited for individualized attention.
Engagement
29.2%
chronically absent (missed 10%+ of school days)
At or above 20%, the commonly used threshold for "high" chronic absenteeism, signaling significant barriers to regular attendance.
Funding equity
$17,680
per pupil, district-wide
- above Delaware avg of $16,990
Somewhat above the U.S. public-school average, reflecting higher local or state investment per enrolled student.
Support staff
Counselors3.0 FTE
Per 242 students, the combined health-and-guidance staffing load for this school.
Discipline context
123
in-school suspensions + 124 out-of-school
Suspension rate: 16.9 per 100 students. Combined in-school and out-of-school rate: 34.0 per 100 students. Reported via the Civil Rights Data Collection. Includes 6 expulsions.
Overview
- Common Core of Data (June 2026): enrollment, staffing, and the student-teacher ratio above.
- Civil Rights Data Collection: discipline counts and program access (AP, gifted, special education).
- F-33 School District Finance Survey: the district-wide per-pupil spending figures below.
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.
Student demographics
White 46.7%
Hispanic or Latino 28.7%
African American 15.4%
Two or More 8.3%
Asian 1.0%
Largest group: White at 46.7% of enrollment.
Student-body diversity index 66.9/100
Simpson diversity index - at 66.9, Millsboro Middle School is more mixed than the Delaware school average of 61.3.
Programs
Funding & spending
District-wide per-pupil expenditure for Indian River School District, which includes Millsboro Middle School.
$17,680
Per student
+4%
vs Delaware
Avg $16,990
+7%
vs U.S.
Avg $16,593
Revenue mix
Local 32.7%
State 55.4%
Federal 11.9%
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.
How Millsboro Middle School Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Sussex Central High School | Larger | No free-lunch data | Similar S:T ratio |
| Indian River High School | Larger | No free-lunch data | Similar S:T ratio |
| Georgetown Middle School | Similar size | No free-lunch data | Similar S:T ratio |
| Georgetown Elementary School | Similar size | No free-lunch data | Similar S:T ratio |
| East Millsboro Elementary School | Similar size | No free-lunch data | Higher S:T ratio |
Comparisons are relative to Millsboro Middle School's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 2,012
- Students per teacher
- 14.6:1
- Resource Index
- 26/100
- Enrollment
- 1,073
- Students per teacher
- 13.1:1
- Resource Index
- 36/100
- Enrollment
- 861
- Students per teacher
- 14.3:1
- Resource Index
- 35/100
- Enrollment
- 825
- Students per teacher
- 13.3:1
- Resource Index
- 49/100
- Enrollment
- 820
- Students per teacher
- 17.8:1
- Resource Index
- 43/100
Similar middle schools statewide
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.
Similar enrollment (~726 students)
Next steps
Verify locally before acting on Millsboro Middle School's federal record.
- Compare Millsboro Middle School against another school. Compare schools
- Indian River School District's spending and staffing shape this school. District profile
- Confirm current enrollment and boundaries with the school. Choosing guide
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.
Frequently asked questions about Millsboro Middle School
How many students attend Millsboro Middle School?
Millsboro Middle School has 726 students enrolled. It is a middle school in Millsboro, DE.
What is the student-teacher ratio at Millsboro Middle School?
The student-teacher ratio at Millsboro Middle School is 13.7:1, which is 1% lower than the Delaware average of 13.9:1 and 13% lower than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
What is the racial and ethnic makeup of Millsboro Middle School?
The largest demographic group at Millsboro Middle School is White at 46.7% of enrollment, in Millsboro, DE. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 66.9/100.
What is the Resource Investment Index for Millsboro Middle School?
Millsboro Middle School has a Resource Investment Index of 38/100 (typical 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).
How does Millsboro Middle School rank among public schools in Millsboro?
By Resource Investment Index, Millsboro Middle School ranks #3 of 3 public schools in Millsboro, DE. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all public schools in Millsboro on the city page.
Is Millsboro Middle School a good school?
Millsboro Middle School earns 38/100 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.
What other schools are in Indian River School District?
Besides Millsboro Middle School, Indian River School District also operates Sussex Central High School (2,012 students), Indian River High School (1,073 students), and Georgetown Middle School (861 students). See the Indian River School District district page for the complete list.
Related tools
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.