Enrollment
713
Delaware · 2024-25 NCES data
2024-25 NCES data High school (grades 9-12) NCES 100027000080
Delmar High School — Delmar, DE
Federal NCES profile for Delmar High School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators — Resource Investment Index 40/100.
👥 Class size 24
📚 AP courses 30
🌟 Gifted program 70
🎓 Counselors 29
📋 Attendance 46
How this works: Each indicator above is scored 0–100 from federal NCES and CRDC data, then averaged into the Resource Investment Index. This measures resource allocation — staffing, programs, and support services — not standardized test scores or academic outcomes. Full methodology →
School address
District: Delmar School District · Delaware
Public location data per NCES (National Center for Education Statistics) Common Core of Data. Verify the school's current address on the NCES CCD record.
Teachers (FTE)
35.0
Federal CCD staff survey
Students per teacher
19.1:1
vs 14.1:1 Delaware avg
+35% vs state
Student-teacher ratio in context
How Delmar High School compares with Delaware and U.S. medians
The federal record — no proprietary index, no editorial formula.
PlainSchools publishes the actual federal measurements — enrollment, staffing, demographics, discipline, and finance — straight from the NCES Common Core of Data, CRDC, and F-33 surveys. No composite rating, no opinion-based score on top. You get the same raw numbers researchers and policymakers use, with benchmarks, spending context, and equity indicators computed from the same federal datasets. Full methodology linked below.
What this school's NCES data tells you
Delmar High School reports 713 enrolled students to the National Center for Education Statistics (NCES) alongside 35.0 full-time-equivalent teachers, producing a 19.1:1 student-teacher ratio. That figure sits 35% above the Delaware state mean of 14.1:1, signalling larger average class loads than peers in the same state. Against the national 2024-25 average of 15.9:1, it is 20% higher, a useful calibration for families comparing districts across state lines.
The school offers 6 Advanced Placement courses, a stronger academic pipeline indicator than enrollment alone. Counselor coverage works out to roughly 357 students per counselor, above the ASCA-recommended ceiling of 250:1. Chronic absenteeism — missing 10% or more of school days — stands at 21.6% according to the 2021-22 Civil Rights Data Collection.
On the finance side, the surrounding Delmar School District spends $12,331 per pupil district-wide, below the Delaware average of $18,485 and below the national average of $19,490. Revenue comes 18.9% from local sources (property taxes), 68.3% from the state, and 12.8% from federal programs per the NCES F-33 finance survey. Taken together, these measurements produce a Resource Investment Index of 40/100 (D), calculated from 5 distinct NCES and CRDC indicators measuring resource allocation rather than academic outcomes.
Source: National Center for Education Statistics Common Core of Data + CRDC + F-33 · 2024-25
How Delmar High School compares
Cross-validating school-level NCES values against Delaware state and U.S. national means lets readers see whether this school is an outlier or in line with peers.
| Metric | This school | vs Delaware | Delaware avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 19.1:1 | ▲ 35% | 14.1:1 | 15.9:1 |
| Enrollment | 713 | top 70% | — | — |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
What the federal data reveals about equity at this school
Federal measurements — not ratings — surface the resource and opportunity picture. Below are the indicators that researchers, civil-rights monitors, and funding formulas use to assess equity.
Staffing depth
19.1:1
students per teacher
— 35% above state mean
Top 96% in Delaware — lower ratio than 4% of state schools
Between 15:1 and 20:1 — in line with the typical U.S. public-school staffing range.
Engagement
21.6%
chronically absent (missed 10%+ of school days)
Chronic absenteeism at or above 20% — the CDC threshold for "high" — signals significant barriers to regular attendance.
Funding equity
$12,331
per pupil, district-wide
— below Delaware avg of $18,485
Below the U.S. average per-pupil spend — funding constraints may affect programs, facilities, and staffing.
Support staff
Counselors2.0 FTE
Per 357 students — the combined health-and-guidance staffing load for this school.
Discipline context
40
in-school suspensions + 53 out-of-school
Suspension rate: 5.6 per 100 students. Combined in-school and out-of-school rate: 13.0 per 100 students. Reported via the Civil Rights Data Collection.
Overview
Enrollment 713 Top 70% in Delaware — larger than 30% of 223 state schools
Teachers (FTE) 35.0
Students per teacher 19.1:1 +35% vs state
Free-lunch eligible —
NCES ID 100027000080
Student demographics
White 58.2%
African American 15.7%
Hispanic or Latino 15.4%
Two or More 6.3%
Asian 3.8%
American Indian / Alaska Native 0.4%
Native Hawaiian / Pacific Islander 0.1%
Largest group: White at 58.2% of enrollment.
Programs & staff
AP courses offered 6
Gifted & talented Yes
Counselors (FTE) 2.0
Students per counselor 357:1
Discipline & special education
Chronically absent 21.6%
In-school suspensions 40
Out-of-school suspensions 53
Funding & spending
District-wide per-pupil expenditure for Delmar School District, which includes Delmar High School.
$12,331
Per student
-33%
vs Delaware
Avg $18,485
-37%
vs U.S.
Avg $19,490
Revenue mix
Local 18.9%
State 68.3%
Federal 12.8%
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.
Other Schools in This District
- Enrollment
- 732
- Students per teacher
- 22.3:1
Educator & family resources
In-depth guides on understanding NCES data, school choice, and education funding.
Understanding NCES data
How CCD, CRDC and EDFacts feed every public-school number you see.
Choose a school district
Eight signals that matter more than the overall ranking number.
How schools are funded
Title I, F-33, state aid formulas and what per-pupil spending really means.
Chronic absenteeism
Why missing 10% of school matters and how it varies by district.
Magnet vs charter vs traditional
Three school types, three funding models, three sets of trade-offs.
School discipline data
What CRDC suspension and expulsion records do and don't reveal.
Frequently asked questions about Delmar High School
How many students attend Delmar High School?
Delmar High School has 713 students enrolled. It is a high school in Delmar, DE.
What is the student-teacher ratio at Delmar High School?
The student-teacher ratio at Delmar High School is 19.1:1, which is 35% higher than the Delaware average of 14.1:1 and 20% higher than the national average of 15.9:1.
What is the racial and ethnic makeup of Delmar High School?
The largest demographic group at Delmar High School is White at 58.2%. The school serves a diverse student body in Delmar, DE.
What is the Resource Investment Index for Delmar High School?
Delmar High School has a Resource Investment Index of 40/100 (D) based on 5 factors: student-teacher ratio, AP course offerings, counselor availability, attendance rates. This index measures federal resource allocation — staffing levels, program availability, and support services — not standardized test scores or academic outcomes.