Odessa High School

High school·Grades 9-12 Townsend, Delaware·19734
Score
85.5/100
Compare Odessa High School with another school
#5
Among 31 Delaware high schools
#3
In Appoquinimink School District
Top 17%
In Delaware

Score 85.5/100: better than 85% 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.

English language arts
54%
Similar Delaware schools ≈ 40%, better than 85% of them
264 students tested
Math
20%
Similar Delaware schools ≈ 17%, better than 79% of them
264 students tested
Science
41%
Similar Delaware schools ≈ 25%, better than 91% of them
339 students tested
All Delaware schools (ELA / math)
42% / 33%
State average across every school type, 2025-26
All 18 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.

SubjectGradeTestResultStudents tested
English language artsGrade 11DeSSA Alternate Assessmenthidden (small group)—
English language artsAll gradesDeSSA Alternate Assessmenthidden (small group)—
English language artsGrade 11SAT School-Day (Spring)54.2264
English language artsAll gradesSAT School-Day (Spring)54.2264
MathGrade 11DeSSA Alternate Assessmenthidden (small group)—
MathAll gradesDeSSA Alternate Assessmenthidden (small group)—
MathGrade 11SAT School-Day (Spring)19.7264
MathAll gradesSAT School-Day (Spring)19.7264
ScienceGrade 10DeSSA Alternate Assessmenthidden (small group)—
ScienceAll gradesDeSSA Alternate Assessmenthidden (small group)—
ScienceGrade 9Delaware System of Student Assessment (DeSSA)44.8232
ScienceGrade 10Delaware System of Student Assessment (DeSSA)33100
ScienceGrade 11Delaware System of Student Assessment (DeSSA)hidden (small group)—
ScienceGrade 12Delaware System of Student Assessment (DeSSA)hidden (small group)—
ScienceHigh schoolDelaware System of Student Assessment (DeSSA)41.3339
ScienceAll gradesDelaware System of Student Assessment (DeSSA)41.3339
Social studiesGrade 11Delaware System of Student Assessment (DeSSA)38.9262
Social studiesAll gradesDelaware System of Student Assessment (DeSSA)38.9262

School profile

Grades
9-12
Students
1,190
Type
High school
Charter school
No
Program
Regular

Students

Enrollment
1,190
Typical high school: 1,015
Free or reduced-price lunch
—
Not reported to the federal data

District and location

City
New Castle County

Contact

Address
570 Tony Marchio Drive
Townsend, DE 19734

"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.

Location

OpenStreetMap · Google Maps

Odessa High School at a glance

Odessa High School is a public high school in Townsend, Delaware, serving grades 9-12. It is part of Appoquinimink School District. It has about 1,190 students (a typical Delaware high school has 1,015).

In 2025-26 state tests, 54% in English language arts (similar schools: 40%) and 20% in math (similar schools: 17%) reached the state standard (% proficient). On our score, which compares it only with other Delaware high schools, it scores 85.5 out of 100: better than 85% of them, ranking #5 of 31. Its English language arts result fell by 10 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.

Compare Odessa High School with another school

Page updated 2026-10-12.