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SCHOOL COMMUNITY·SEAFORD SCHOOL DISTRICT·NCES 100153000158

Seaford Senior High School

399 North Market Street Ext, Seaford, DE 19973 · (302) 629-4587 · Sussex County
GRADES 09–12HIGH32-TOWNREGULAR SCHOOL960 STUDENTS
C-
allk12 Grade
Scored higher than 17% of Delaware public high schools
  • C-Test scores Share of students meeting the state standard in reading, math, and other tested subjects, 2023-24 and 2024-25.

Grades compare a school only with schools in the same state, because every state gives its own test. How grades work · Top-graded Delaware public high schools

Enrollment
960
High
DISTRICT 511 · STATE 1,068
Student : Teacher
21.3:1
45 FTE teachers
DISTRICT 17.9:1 · STATE 16.6:1
Free / Reduced Lunch
,
Title I proxy
Community
6
0 members
Enrollment and student:teacher ratio compared against other high schools. Free/Reduced Lunch and demographics compared against all schools.

Enrollment by grade, 2024-25

GradeStudentsShare
Grade 928830%
Grade 1024025%
Grade 1122223%
Grade 1221022%
Student demographics
70%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 71% · STATE 71% · US 70%
White
22924%
DISTRICT 25% · STATE 38% · US 43%
Hispanic
28530%
DISTRICT 30% · STATE 20% · US 30%
Black
37739%
DISTRICT 36% · STATE 31% · US 15%
Asian
61%
DISTRICT 1% · STATE 4% · US 6%
Two+
616%
DISTRICT 7% · STATE 6% · US 5%
Native American
20%
DISTRICT 0% · STATE 0% · US 1%
Student head counts by race/ethnicity from federal NCES enrollment data. District, state, and US figures are each group's share of all public school students in that area (US excludes territories). Very small groups may be suppressed in the source, so categories do not always sum exactly to total enrollment.
Gender split
Male
52555%
Female
43545%

School pathway

Feeds from
Seaford Middle School06–08
Based on grade levels within Seaford School District. Attendance zones can vary; confirm enrollment with the district.

Discussions

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Where Seaford Senior High School ranks

Among high schools
MeasureThis schoolIn DelawareIn Sussex County
Enrollment
ranked largest first
960#24 of 41#5 of 9
Students per teacher
ranked fewest first
21.3:1#36 of 38#8 of 8
Diversity index
ranked most diverse first
69.7%#5 of 38#2 of 8
Enrollment change since 2017-18
ranked fastest growth first
+20.8%#9 of 28#4 of 8
Ranked against other public high schools. Online schools are left out of every list, and test-score lists leave out schools that serve specialized populations. Each rank links to the full list. Arrows under a test-score rank show places moved since the prior test year, among schools tested both years.

4-year change

SY 2020-21 vs SY 2024-25
Enrollment
960
+163 (+20%) vs 2020
+11% since 1990-91, when it was 863
Student : Teacher
21.3:1
was 15.6:1
Source: NCES Common Core of Data

Enrollment and staffing by year

School yearStudentsTeachers (FTE)Students per teacherFree and reduced lunch
2024-259604521.3:1N/A
2023-248334917.0:1N/A
2022-238795017.6:1N/A
2020-217975115.6:1N/A
2017-187955913.5:1N/A
2015-167516012.5:148% (358)
2010-118185215.7:163% (519)
2000-011,0476216.9:134% (355)
1990-918635416.0:1N/A
Source: NCES Common Core of Data. Rows are the federal collections on file for Seaford Senior High School.

Since 2017-18: students up 21% (795 to 960); teachers down 24% (59 to 45).

About Seaford Senior High School

Seaford Senior High School, located in Seaford, Delaware, is a mid-sized high school. In all, 960 students attend the school in grades 9 through 12.

The district, Seaford School District, has 3,580 students enrolled across 7 schools.

The biggest share of students at Seaford Senior High School, 39%, is Black. The remaining shares are 30% Hispanic, 24% White, and 6% multiracial. Census estimates put the Black share of Sussex County's population at about 10%. On the diversity index, which measures the chance that two random students are from different groups, Seaford Senior High School scores 70%.

Teacher count: 45 full-time equivalents. Student-to-teacher ratio: 21.3:1. The gap from the 16.6:1 average for high schools in Delaware is 4.7 students per teacher.

On the allk12 Grade, Seaford Senior High School lands at C-, ahead of 17% of Delaware public high schools.

For the population of Sussex County, median household income comes to about $81,497, 33% of adults hold a bachelor's degree or higher, and about 8% of people live in poverty. Sussex County's 55 public schools enroll about 32,366 students and include Seaford Senior High School.

Seaford Senior High School is about 0.1 miles from Seaford Central Elementary School, its nearest public school. There are 7 other public schools within five miles.

Its location is classified as Town: Distant by the National Center for Education Statistics.

From 2020-21 to 2024-25, enrollment rose from 797 to 960, a 20% increase. The student-to-teacher ratio went up from 15.6:1 to 21.3:1.

Use the discussion section to ask about homework, tutoring, and testing dates at Seaford Senior High School. You can also rate the school on this page.

Sussex County at a glance

View full county profile
Population
255,626
Census ACS
Median income
$81,497
Household, ACS
Bachelor's+
33%
Adults 25+
Poverty rate
8%
Below federal line
Schools in county
55
32,366 students

Quick facts

School name
Seaford Senior High School
District
Seaford School District
Address
399 North Market Street Ext, Seaford, DE 19973
Phone
(302) 629-4587
County
Sussex County
Level
High
Grade range
09–12
Total enrollment
960
Teachers (FTE)
45
Student–teacher ratio
21.3:1
Locale
32-Town: Distant
NCES ID
100153000158
Charter school
No
Virtual school
No

Related schools

Other schools in Seaford School District
Other schools in Seaford
Other Seaford Senior High schools

One other US public school is named Seaford Senior High. Seaford Senior High School is the largest of the 2.

Nearby schools

Frequently asked questions

About Seaford Senior High School
How large is Seaford Senior High School?
Seaford Senior High School enrolls approximately 960 students in grades 09-12.
Is Seaford Senior High School an elementary, middle, or high school?
Seaford Senior High School is a high school covering grades 09-12.
How many students per teacher at Seaford Senior High School?
Approximately 21.3:1 students per teacher at Seaford Senior High School.
What is the racial breakdown of students at Seaford Senior High School?
At Seaford Senior High School, the student body is approximately 24% White, 30% Hispanic, 39% Black, 1% Asian, 6% Two or more.
Is Seaford Senior High School public or private?
Seaford Senior High School is a public K-12 school, overseen by Seaford School District.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.
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