High school (grades 9-12) · Seaford, DE

Seaford Senior High School

Federal NCES profile for Seaford Senior High School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 14/100.

2024-25 NCES dataHigh school (grades 9-12)NCES 100153000158
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Compiled from official source data by .
0/100100/10014/100
👥 S:T ratio
23
🌟 Gifted program
30
🎓 Counselors
4
📋 Attendance
0
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →

The verdict

Seaford Senior High School earns 14/100 on the Resource Investment Index, with class sizes larger than 94% of Delaware schools.

#6 of 6
public schools in Seaford · Resource Index
14
Resource Index · Lower
19.2:1
large classes for Delaware
960
students enrolled

Seaford Senior High School has class sizes larger than 94% of Delaware schools. Computed live against every Delaware school reporting to NCES.

By Resource Investment Index, Seaford Senior High School ranks #6 of 6 public schools in Seaford, DE.

School address

Seaford, DE 19973
District: Seaford School District · Delaware

NCES ID 100153000158 Verify on NCES CCD record →

CCD year-over-year · 2022-23 → 2023-24

-46 students YoY

Seaford Senior High School shrank from 879 students in 2022-23 to 833 in 2023-24 (-5.2%).

Teacher FTE lost 50.0 → 49.0 across the same CCD years.

Source: NCES Common Core of Data public-school universe (2022-23, 2023-24).

Shrinking CCD campus

-46 students YoY 100153000158 · Seaford, DE High · MID · TRAD

960 enr · 19.2:1 · RII 14

Nearest enrollment peer: Seaford Middle School (800 students)

Seaford Senior High School shrank from 879 students in 2022-23 to 833 in 2023-24 (-5.2%). Teacher FTE lost 50.0 → 49.0 across the same CCD years. Read with this school → · District book → · Delaware schools → · Find another →

Seaford Senior High School in the enrollment neighbourhood

Fall enrollment among this campus and nearest district peers

students

What this shows Seaford Senior High School reports 960 students on the CCD universe file.

Source U.S. Department of Education, NCES Common Core of Data (Public School Universe) As of 2024-25

How Seaford Senior High School compares

Seaford Senior High School is a shrinking campus on CCD: ratios and free-lunch share vs Delaware and U.S. means.

Metric This school vs Delaware Delaware avg U.S. avg
Students per teacher 19.2:1 ▲ 38% 13.9:1 15.7:1
Enrollment 960 top 14% - -

Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25

19.2:1
Leaner classes than 19% of US schools, heavier class loads than most.
960
Bigger than 90% of US schools by enrollment, a large campus nationally.

Equity indicators methodology

Staffing depth
19.2:1
students per teacher - 38% above state mean
Top 94% in Delaware - lower ratio than 6% of state schools
Between 16:1 and 20:1, squarely in the typical U.S. public-school staffing range.
Engagement
53.8%
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
$18,422
per pupil, district-wide - above Delaware avg of $18,304
Close to the U.S. public-school average per-pupil spend.
Support staff
Counselors2.0 FTE
Per 480 students, the combined health-and-guidance staffing load for this school.
Discipline context
80
in-school suspensions + 124 out-of-school
Suspension rate: 8.3 per 100 students. Combined in-school and out-of-school rate: 21.3 per 100 students. Reported via the Civil Rights Data Collection. Includes 1 expulsion.

Student demographics

African American 39.3%
Hispanic or Latino 29.7%
White 23.9%
Two or More 6.4%
Asian 0.6%
American Indian / Alaska Native 0.2%

Largest group: African American at 39.3% of enrollment.

Student-body diversity index 69.6/100

Simpson diversity index - at 69.6, Seaford Senior High School is more mixed than the Delaware school average of 61.3.

Programs

AP courses offered 8

District finance for Seaford School District reports $18,422 per pupil (NCES F-33) - open the district page for the full revenue mix.

How Seaford Senior High School Compares to District-Mates

School Enrollment Economic Profile Student-Teacher Ratio
Seaford Middle School Similar size No free-lunch data Lower S:T ratio
Seaford Central Elementary School Smaller No free-lunch data Lower S:T ratio
Frederick Douglass Elementary School Smaller No free-lunch data Lower S:T ratio
West Seaford Elementary School Smaller No free-lunch data Lower S:T ratio
Blades Elementary School Smaller No free-lunch data Lower S:T ratio

Comparisons are relative to Seaford Senior High School's own figures; each column derives from NCES Common Core of Data.

Other Schools in This District

Seaford School District · 5 sibling schools

View district profile

Nationwide high schools with similar size or staffing

Out-of-state peers matched by enrollment and by student-teacher ratio, not the same-city or same-district lists above.

Similar enrollment (~960 students)

Similar student-teacher ratio (~19.2:1)

Frequently asked questions about Seaford Senior High School

How many students attend Seaford Senior High School?

Seaford Senior High School has 960 students enrolled. It is a high school in Seaford, DE. CCD year-over-year: 879 (2022-23) → 833 (2023-24), down 46.

What is the student-teacher ratio at Seaford Senior High School?

The student-teacher ratio at Seaford Senior High School is 19.2:1, which is 38% higher than the Delaware average of 13.9:1 and 22% higher than the national average of 15.7:1.

What is the racial and ethnic makeup of Seaford Senior High School?

The largest demographic group at Seaford Senior High School is African American at 39.3% of enrollment, in Seaford, DE. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 69.6/100.

What is the Resource Investment Index for Seaford Senior High School?

Seaford Senior High School has a Resource Investment Index of 14/100 (lower reported resources relative to schools nationally) based on 4 factors: student-teacher ratio, gifted-program reporting, counselor availability, chronic absenteeism. Not a test-score or academic measure (national median ~41/100, see methodology).

How does Seaford Senior High School rank among public schools in Seaford?

By Resource Investment Index, Seaford Senior High School ranks #6 of 6 public schools in Seaford, 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 Seaford on the city page.

What other schools are in Seaford School District?

Besides Seaford Senior High School, Seaford School District also operates Seaford Middle School (800 students), Seaford Central Elementary School (473 students), and Frederick Douglass Elementary School (456 students). See the Seaford School District district page for the complete list.

Read our methodology - how this data is sourced, computed, and verified.

Source: National Center for Education Statistics (NCES) CCD + Public School Universe (2024-25), CRDC (2021-22), F-33 District Finance Survey (FY 2022-23) · 2024-25 Data as of the 2024-25 school year. Coverage from U.S. Department of Education NCES Common Core of Data. Varies by entity type; administrative districts and certain charter networks may report only a subset of fields.

All federal data sources used on this page

Full source list and how we compute each figure: methodology page.

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Compiled from official source data by .