Seaford Senior High School

399 North Market Street Ext, Seaford, DE 19973

FSchola Grade
Grades
9–12
High
Students
960
Enrolled 2024–25
Students per teacher
21.3 : 1
Full-time teachers
District
Seaford School District
Sussex County

Schola Grade F · Far below average

Letter grade (A–F) · compared with 39 Delaware high schools · How we grade
Test scores17% proficient in math & reading
14thpercentile
Equity10% of low-income students proficient
13thpercentile
Attendance45% chronically absent
9thpercentile
Graduation rate74% graduate in 4 years
8thpercentile
College readinessAt least 13% take AP, IB or dual-enrollment courses
42ndpercentile
Class size21.3 students per teacher
5thpercentile

Percentiles compare this school with other Delaware high schools; the line marks the middle. Data: test scores 2021–22, graduation and absenteeism 2022–23 (U.S. Department of Education, EDFacts); coursework 2023–24 (Civil Rights Data Collection); staffing 2024–25 (NCES).

About Seaford Senior High School

Seaford Senior High School is a public high school in Seaford, Delaware, serving grades 9–12. It is part of Seaford School District. The school is located in a town in Sussex County.

In the 2024–25 school year, 960 students were enrolled, with about 21.3 students for every full-time teacher. That ratio is larger than the typical Delaware high school (15.4 students per teacher). Its Schola Grade is F (far below average), compared with 39 Delaware high schools.

Grades & enrollment

Students per grade, 2024–25Grades 9–12

Location & nearby schools

399 North Market Street Ext
Seaford, DE 19973
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School details

Type
Public School · What this means
Level
High
Grades offered
9–12
Enrollment (2024–25)
960 students
Students per teacher
21.3 to 1
AP courses offered
6
Charter school
No
Magnet school
No
Locale
Town — Distant
School district
Seaford School District
County
Sussex County
NCES school ID
100153000158

Schools near Seaford Senior High School

All 10 schools in Seaford →

School data comes from the U.S. Department of Education: the National Center for Education Statistics (NCES) Common Core of Data and EDGE school locations (2024–25) and Private School Survey (2023–24), the Civil Rights Data Collection (2023–24), and EDFacts (test results 2021–22; graduation and chronic absenteeism 2022–23), plus other public sources. Please contact the school to confirm enrollment, programs, and other details. How we source data.