Marshwood High School
🇺🇸 Official data · 2025South Berwick, Maine 03908 · Rsu 35/Msad 35
#15 of 110 high schools in Maine
#2739 of 16,910 nationally
About Marshwood High School
Marshwood High School is a public high located in South Berwick, in the Rsu 35/Msad 35 school district of Maine, United States. It caters for Grades 9–12. In 2025 it enrolled 659 students. Traditional public schools run by a school district; free to attend.
Its Success Index (US) is 72.3 out of 100, placing it in the top 25% of high schools in United States and 15th of 110 ranked high schools in Maine. Its strongest component is community advantage (fewer free/reduced-price lunch) (95th percentile), and its weakest is reading proficiency (62th percentile).
Other published figures: enrollment 659.
There are 3 schools in South Berwick; Marshwood High School ranks 2nd of 3 scored schools there.
Success Index (US) breakdown
Each component is a percentile against high schools across United States.
- Math proficiency (30%)52%
- Reading proficiency (30%)62%
- Community advantage (fewer free/reduced-price lunch) (25%)15.3%
- Students per teacher (15%)13.2
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 Marshwood High School by the official sources.
- Enrollment
- 659
- Students enrolled in the latest NCES directory year.
- Free/reduced-price lunch
- 15.3%
- Share of students eligible for free or reduced-price lunch.
- Students per teacher
- 13.2
- Enrollment divided by FTE teachers; not class size.
- Reading proficiency
- 62%
- Share of tested students proficient or above (all students, all grades).
- Math proficiency
- 52%
- Share of tested students proficient or above (all students, all grades).
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Schools near Marshwood High School
Closest schools by straight-line distance, with their Success Index (US).
Marshwood Great Works School
South Berwick · Public elementary · Grades 4–5
287 students · 2.8 km away
Central School
South Berwick · Public elementary · Grades PK–3
402 students · 3.7 km away
Rollinsford Grade School
Rollinsford · Public elementary · Grades K–6
154 students · 4.1 km away
Marshwood Middle School
Eliot · Public middle · Grades 6–8
490 students · 5.3 km away
Frances G. Hopkins Elementary School at Horne Street
Dover · Public elementary · Grades K–4
412 students · 6.9 km away
Garrison School
Dover · Public elementary · Grades K–4
353 students · 7.0 km away
Woodman Park School
Dover · Public elementary · Grades PK–4
421 students · 7.2 km away
Dover Middle School
Dover · Public middle · Grades 5–8
941 students · 7.5 km away
Dover Senior High School
Dover · Public high · Grades 9–12
1,371 students · 7.6 km away
Idlehurst Elementary School
Somersworth · Public elementary · Grades PK–2
341 students · 7.7 km away
Similar schools
Public high schools in Maine with a comparable Enrollment.
Cony
Augusta · Public high · Grades 9–12
662 students
Falmouth High School
Falmouth · Public high · Grades 9–12
669 students
Kennebunk High School
Kennebunk · Public high · Grades 9–12
683 students
Skowhegan Area High School
Skowhegan · Public high · Grades 9–12
686 students
Brewer High School
Brewer · Public high · Grades 9–12
690 students
Messalonskee High School
Oakland · Public high · Grades 9–12
695 students
Frequently asked questions
Is Marshwood High School a good school?
Marshwood High School has a Success Index (US) of 72.3 out of 100 (Top 25% of high schools in United States) and ranks #15 of 110 in Maine. 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 Marshwood High School rank in Maine?
Marshwood High School ranks #15 of 110 high schools in Maine and #2739 of 16,910 nationally on the Success Index (US) (2025 data).
How many students attend Marshwood High School?
Marshwood High School had 659 students in 2025.
Is Marshwood High School a elementary school or a high school?
Marshwood High School is classified as a high covering Grades 9–12. It is a public school.
What other schools are near Marshwood High School?
There are 10 schools within 15 km of Marshwood High School; they are listed on this page with their Success Index (US) and distance, and can be compared side by side.