B+
Mariner Middle School
PublicMiddleGrades 6–8
16391 Harbeson Rd, Milton, DE 19968 · (302) 685-8516 · Part of Cape Henlopen School District
Students
552
Students per teacher
12:1
Setting
Rural
Grades
6–8
What stands out about Mariner Middle School
- Math proficiency 6 pts above the state
- Reading / language arts 6 pts above the state
- Small classes: 12:1 students per teacher
- Enrollment down 11.5% since 2020
- Next stop for Rehoboth Beach kids: Cape Henlopen High School
On the path
Where Rehoboth Beach kids come from and go next.
K–5Rehoboth Elementary School557 students
6–8Mariner Middle SchoolYou are here
9–12Cape Henlopen High Schoolin Lewes
Test scores
EDFacts via Urban Institute Education Data Portal (SY2020-21) · 2020–21Math proficiency32%
State average 26.5%
Reading / language arts48%
State average 41.9%
Location
Directions ↗
16391 Harbeson Rd, Milton
Students
Enrollment by grade
Grade 6186
Grade 7191
Grade 8175
Enrollment over time
624’20
658’21
664’22
682’23
552’24
Down 11.5% since 2020.
Who goes here
White 55%Hispanic 27%Black 11%Two or more races 6%Asian <1%Native Hawaiian/Pacific Islander <1%
As reported to NCES, share of students with a reported race or ethnicity.
What neighbors say
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Parents talk
Conversations in Town Square that mention Mariner Middle School.
Other schools in Cape Henlopen School District
School facts: U.S. Department of Education (NCES), 2024-2025 school year. Scores: EDFacts via Urban Institute Education Data Portal (SY2020-21). The School Grade is our own summary of state test results. Neighbor ratings are opinions, not an official measure of school quality.