Enrollment
659
Maine · 2024-25 NCES data
High school (grades 9-12) · South Berwick, ME
Marshwood High School
Federal NCES profile for Marshwood High School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 51/100.
2024-25 NCES dataHigh school (grades 9-12)NCES 231137000491
👥 S:T ratio 47
📚 AP courses 50
🌟 Gifted program 70
🎓 Counselors 74
📋 Attendance 14
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Marshwood High School earns 51/100 on the Resource Investment Index, with class sizes larger than 86% of Maine schools.
- #2 of 3
- public schools in South Berwick · Resource Index
- 51
- Resource Index · Higher
- 13.2:1
- large classes for Maine
- 8.9%
- free-lunch eligible
Marshwood High School has class sizes larger than 86% of Maine schools. Computed live against every Maine school reporting to NCES.
By Resource Investment Index, Marshwood High School ranks #2 of 3 public schools in South Berwick, ME.
School address
District: Rsu 35/Msad 35 · Maine
NCES ID 231137000491 Verify on NCES CCD record →
Teachers (FTE)
50.0
Federal CCD staff survey
Students per teacher
13.2:1
vs 11.1:1 Maine avg
+19% vs state
Free-lunch eligible
8.9%
vs 34.0% Maine avg
-74% vs state
Student-teacher ratio in context
How Marshwood High School compares with Maine and U.S. medians
What stands out at Marshwood High School
Marshwood High School is a lower-poverty, large high school in South Berwick, Maine, enrolling 659 students.
Class loads run heavy: 13.2:1 is larger than about 86% of Maine schools and 19% above the 11.1:1 state mean, so each teacher carries more students than is typical.
Comparatively few students face economic hardship here, 8.9% free-meal eligibility runs 74% below the Maine average.
By headcount it is one of the larger campuses in Maine, bigger than 93% of state schools at 659 students.
Its Resource Investment Index lands in the upper third of 569 scored Maine schools.
Against 51 statewide peers matched on enrollment and economic need, it ranks mid-pack at #26.
Its student body is predominantly White (92% of enrollment) (diversity index 16/100).
On the academic-pipeline side it reports 10 Advanced Placement courses.
Counselor coverage is strong, about 132 students per counselor, inside the American School Counselor Association's recommended 250:1.
Chronic absenteeism is elevated: 34.3% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
Rsu 35/Msad 35 also operates Marshwood Middle School (490 students) and Central School (402 students) alongside Marshwood High School.
Sourced from NCES CCD, CRDC, and F-33 (federal records, not a quality verdict). How we source and compute this.
Source: National Center for Education Statistics Common Core of Data + CRDC + F-33 · 2024-25
How Marshwood High School compares
Marshwood High School on the metrics families compare, against Maine and U.S. means.
| Metric | This school | vs Maine | Maine avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 13.2:1 | ▲ 19% | 11.1:1 | 15.7:1 |
| Free-lunch eligible | 8.9% | ▼ 74% | 34.0% | 51.7% |
| Enrollment | 659 | top 7% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
13.2:1
Leaner classes than 65% of US schools, a middle-of-the-pack class size.
659
Bigger than 77% of US schools by enrollment, mid-sized for the country.
Equity indicators (what these measure)
Economic need
8.9%
free-lunch eligible
- 74% below the Maine average of 34.0%
Below the 40% Title I threshold, among the lower-need profiles in the state; federal aid targets individual qualifying students rather than schoolwide programs.
Staffing depth
13.2:1
students per teacher
- 19% above state mean
Top 86% in Maine - lower ratio than 14% of state schools
Close to the 15:1 benchmark most often cited for individualized attention.
Engagement
34.3%
chronically absent (missed 10%+ of school days)
At or above 20%, the commonly used threshold for "high" chronic absenteeism, signaling significant barriers to regular attendance.
Funding equity
$17,761
per pupil, district-wide
- below Maine avg of $20,083
Somewhat above the U.S. public-school average, reflecting higher local or state investment per enrolled student.
Support staff
Counselors5.0 FTE
Per 132 students, the combined health-and-guidance staffing load for this school.
Discipline context
8
in-school suspensions + 42 out-of-school
Suspension rate: 1.2 per 100 students. Combined in-school and out-of-school rate: 7.6 per 100 students. Reported via the Civil Rights Data Collection.
Overview
- Common Core of Data (June 2026): enrollment, staffing, and the student-teacher ratio above.
- Civil Rights Data Collection: discipline counts and program access (AP, gifted, special education).
- F-33 School District Finance Survey: the district-wide per-pupil spending figures below.
Three separate federal collections, each on its own reporting cadence - which is why this school's numbers line up on a consistent basis against every other school and state on this site, rather than mixing figures pulled from different survey years.
Student demographics
White 91.7%
Hispanic or Latino 2.7%
Two or More 2.3%
African American 1.5%
Asian 1.1%
American Indian / Alaska Native 0.6%
Native Hawaiian / Pacific Islander 0.2%
Largest group: White at 91.7% of enrollment.
Student-body diversity index 15.7/100
Simpson diversity index - at 15.7, Marshwood High School is less mixed than the Maine school average of 20.6.
Programs
AP courses offered 10
Gifted & talented Yes
Funding & spending
District-wide per-pupil expenditure for Rsu 35/Msad 35, which includes Marshwood High School.
$17,761
Per student
-12%
vs Maine
Avg $20,083
+7%
vs U.S.
Avg $16,593
Revenue mix
Local 53.2%
State 38.0%
Federal 8.8%
Source: NCES F-33 School District Finance Survey District-level finance · FY 2021-22 Per-pupil expenditure reflects the district-wide average. Individual school budgets are not reported at the federal level.
How Marshwood High School Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Marshwood Middle School | Smaller | Similar economic need | Similar S:T ratio |
| Central School | Smaller | Similar economic need | Similar S:T ratio |
| Marshwood Great Works School | Smaller | Similar economic need | Similar S:T ratio |
| Eliot Elementary School | Smaller | Similar economic need | Lower S:T ratio |
Comparisons are relative to Marshwood High School's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 490
- Students per teacher
- 12.9:1
- Resource Index
- 56/100
- Enrollment
- 402
- Students per teacher
- 13.9:1
- Resource Index
- 40/100
- Enrollment
- 287
- Students per teacher
- 12.5:1
- Resource Index
- 56/100
- Enrollment
- 282
- Students per teacher
- 11.3:1
- Resource Index
- 47/100
Similar high schools statewide
Matched by enrollment size and by staffing ratio across all of Maine, not just this city - a different peer set than the local comparisons above.
Similar enrollment (~659 students)
Similar student-teacher ratio (~13.2:1)
Next steps
Verify locally before acting on Marshwood High School's federal record.
- Compare Marshwood High School against another school. Compare schools
- Rsu 35/Msad 35's spending and staffing shape this school. District profile
- Confirm current enrollment and boundaries with the school. Choosing guide
Federal record (CCD 2024-25, CRDC 2021-22) - PlainSchools assigns no subjective rating; the composite quality score is a transparent, reproducible index computed from this cited federal data.
Frequently asked questions about Marshwood High School
How many students attend Marshwood High School?
Marshwood High School has 659 students enrolled. It is a high school in South Berwick, ME.
What is the student-teacher ratio at Marshwood High School?
The student-teacher ratio at Marshwood High School is 13.2:1, which is 19% higher than the Maine average of 11.1:1 and 16% lower than the national average of 15.7:1.
What percentage of students receive free lunch at Marshwood High School?
8.9% of students at Marshwood High School are eligible for free lunch, compared to the Maine average of 34.0%.
What is the racial and ethnic makeup of Marshwood High School?
The largest demographic group at Marshwood High School is White at 91.7% of enrollment, in South Berwick, ME.
What is the Resource Investment Index for Marshwood High School?
Marshwood High School has a Resource Investment Index of 51/100 (higher reported resources relative to schools nationally) based on 5 factors: student-teacher ratio, AP course offerings, counselor availability, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Marshwood High School rank among public schools in South Berwick?
By Resource Investment Index, Marshwood High School ranks #2 of 3 public schools in South Berwick, ME. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all public schools in South Berwick on the city page.
Is Marshwood High School a good school?
Marshwood High School earns 51/100 on the Resource Investment Index, with class sizes larger than 86% of Maine schools. This is a resource snapshot, not an academic rating; see the Resource Investment Index question above for what the number does and doesn't measure.
What other schools are in Rsu 35/Msad 35?
Besides Marshwood High School, Rsu 35/Msad 35 also operates Marshwood Middle School (490 students), Central School (402 students), and Marshwood Great Works School (287 students). See the Rsu 35/Msad 35 district page for the complete list.
Related tools
Every figure on PlainSchools is rendered directly from the source NCES, CRDC and F-33 federal records, no number is typed in by an editor. Each school's figures reflect its most recent NCES/CRDC submission on file. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of June 2026.