Seaford Senior High School
Score 6.5/100: better than 6% of Delaware high schools on 2025-26 state tests. Schools are only compared with others of the same type in the same state. How we score schools
Performance (state tests, 2025-26)
% proficient on state tests in Delaware, all students. Colored bars are green when the school is at or above the average for similar Delaware schools.
Results over time
How this school's published results have moved year by year.
All 14 published results by grade and test
As published by Delaware Department of Education. "Hidden" means the state didn't publish the result to protect student privacy.
| Subject | Grade | Test | Result | Students tested |
|---|---|---|---|---|
| English language arts | Grade 11 | SAT School-Day (Spring) | 15 | 180 |
| English language arts | All grades | SAT School-Day (Spring) | 15 | 180 |
| Math | Grade 11 | SAT School-Day (Spring) | 2.8 | 180 |
| Math | All grades | SAT School-Day (Spring) | 2.8 | 180 |
| Science | Grade 10 | DeSSA Alternate Assessment | hidden (small group) | — |
| Science | All grades | DeSSA Alternate Assessment | hidden (small group) | — |
| Science | Grade 9 | Delaware System of Student Assessment (DeSSA) | hidden (small group) | — |
| Science | Grade 10 | Delaware System of Student Assessment (DeSSA) | 17.4 | 190 |
| Science | Grade 11 | Delaware System of Student Assessment (DeSSA) | hidden (small group) | — |
| Science | Grade 12 | Delaware System of Student Assessment (DeSSA) | hidden (small group) | — |
| Science | High school | Delaware System of Student Assessment (DeSSA) | 15 | 240 |
| Science | All grades | Delaware System of Student Assessment (DeSSA) | 15 | 240 |
| Social studies | Grade 11 | Delaware System of Student Assessment (DeSSA) | 10.6 | 179 |
| Social studies | All grades | Delaware System of Student Assessment (DeSSA) | 10.6 | 179 |
School profile
- Grades
- 9-12
- Students
- 833
- Type
- High school
- Charter school
- No
- Program
- Regular
Students
District and location
Contact
Seaford, DE 19973
"Typical" is the middle (median) high school in Delaware. Higher or lower is not in itself better or worse. Address, phone and website are as the state reported them to the U.S. Department of Education for 2024-25, so check with the school before visiting. School details: U.S. Department of Education, Common Core of Data (enrollment 2023-24).
Nearby high schools
Straight-line distance. Check the district's attendance zones: living close to a school doesn't guarantee a place.
Explore schools around Seaford
Location
Official sources
Every figure on this page comes from published government data. Check the originals here; we refresh when states release new results.
U.S. Department of Education, National Center for Education Statistics, Common Core of Data (CCD): school directory, grades served, enrollment and free/reduced-price lunch, 2023-24 and 2024-25. Spotted a mistake? Tell us.
Seaford Senior High School at a glance
Seaford Senior High School is a public high school in Seaford, Delaware, serving grades 9-12. It is part of Seaford School District. It has about 833 students (a typical Delaware high school has 1,015).
In 2025-26 state tests, 15% in English language arts (similar schools: 40%) and 3% in math (similar schools: 17%) reached the state standard (% proficient). On our score, which compares it only with other Delaware high schools, it scores 6.5 out of 100: better than 6% of them, ranking #29 of 31. Its English language arts result fell by 6 points from the year before. This overview is generated automatically from published state and federal data; figures are rounded, and you can check the originals via the official sources above.
Page updated 2026-10-12.