Middletown High School
🇺🇸 Official data · 2025Middletown, Delaware 19709 · Appoquinimink School District
#9 of 34 high schools in Delaware
#8543 of 16,910 nationally
About Middletown High School
Middletown High School is a public high located in Middletown, in the Appoquinimink School District school district of Delaware, United States. It caters for Grades 9–12. In 2025 it enrolled 1,231 students. Traditional public schools run by a school district; free to attend.
Its Success Index (US) is 49.4 out of 100, placing it in the lower 50% of high schools in United States and 9th of 34 ranked high schools in Delaware. Its strongest component is reading proficiency (59th percentile), and its weakest is math proficiency (41th percentile).
Other published figures: enrollment 1,231.
There are 14 schools in Middletown; Middletown High School ranks 11th of 13 scored schools there.
Success Index (US) breakdown
Each component is a percentile against high schools across United States.
- Math proficiency (30%)34%
- Reading proficiency (30%)60%
- Community advantage (fewer free/reduced-price lunch) (25%)–
- Students per teacher (15%)15.4
The Success Index (US) summarises published data about a school community. It is not a measure of teaching quality. Read the methodology.
Published measures
All figures published for Middletown High School by the official sources.
- Enrollment
- 1,231
- Students enrolled in the latest NCES directory year.
- Students per teacher
- 15.4
- Enrollment divided by FTE teachers; not class size.
- Reading proficiency
- 60%
- Share of tested students proficient or above (all students, all grades).
- Math proficiency
- 34%
- Share of tested students proficient or above (all students, all grades).
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Schools near Middletown High School
Closest schools by straight-line distance, with their Success Index (US).
Brick Mill Elementary School
Middletown · Public elementary · Grades 1–5
524 students · 1.1 km away
Brick Mill Early Childhood Center
Middletown · Public elementary · Grades PK–K
280 students · 1.1 km away
Redding (Louis L.) Middle School
Middletown · Public middle · Grades 6–8
451 students · 1.5 km away
Silver Lake Elementary School
Middletown · Public elementary · Grades 1–5
552 students · 1.5 km away
Meredith (Everett) Middle School
Middletown · Public middle · Grades 6–8
867 students · 2.1 km away
Odessa High School
Townsend · Public high · Grades 9–12
1,254 students · 3.7 km away
Old State Elementary School
Townsend · Public elementary · Grades 1–5
765 students · 3.9 km away
Cantwells Bridge Middle School
Townsend · Public middle · Grades 6–8
852 students · 3.9 km away
Spring Meadow Early Childhood Center
Townsend · Public elementary · Grades K–K
185 students · 4.1 km away
Bunker Hill Elementary School
Middletown · Public elementary · Grades 1–5
566 students · 4.4 km away
Similar schools
Public high schools in Delaware with a comparable Enrollment.
Odessa High School
Townsend · Public high · Grades 9–12
1,254 students
Milford Senior High School
Milford · Public high · Grades 9–12
1,271 students
Conrad Schools of Science
Wilmington · Public high · Grades 6–12
1,164 students
Appoquinimink High School
Middletown · Public high · Grades 9–12
1,357 students
Mount Pleasant High School
Wilmington · Public high · Grades 9–12
1,084 students
Indian River High School
Dagsboro · Public high · Grades 9–12
1,073 students
Frequently asked questions
Is Middletown High School a good school?
Middletown High School has a Success Index (US) of 49.4 out of 100 (Lower 50% of high schools in United States) and ranks #9 of 34 in Delaware. The index summarises published data about the school community and, where available, attainment; it does not measure teaching quality, so visit the school and ask about support at your child's level.
Where does Middletown High School rank in Delaware?
Middletown High School ranks #9 of 34 high schools in Delaware and #8543 of 16,910 nationally on the Success Index (US) (2025 data).
How many students attend Middletown High School?
Middletown High School had 1,231 students in 2025.
Is Middletown High School a elementary school or a high school?
Middletown High School is classified as a high covering Grades 9–12. It is a public school.
What other schools are near Middletown High School?
There are 10 schools within 15 km of Middletown High School; they are listed on this page with their Success Index (US) and distance, and can be compared side by side.