Enrollment
867
Maine · 2024-25 NCES data
High school (grades 9-12) · Waterboro, ME
Federal NCES profile for Massabesic High School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 45/100.
The verdict
Massabesic High School earns 45/100 on the Resource Investment Index, with class sizes larger than 98% of Maine schools. It is also one of the largest schools in Maine.
Massabesic High School has class sizes larger than 98% of Maine schools. Computed live against every Maine school reporting to NCES.
NCES ID 231467000775 Verify on NCES CCD record →
Enrollment
867
Maine · 2024-25 NCES data
Teachers (FTE)
58.0
Federal CCD staff survey
Students per teacher
15.7:1
vs 11.3:1 Maine avg
+39% vs state
Free-lunch eligible
22.1%
vs 34.0% Maine avg
-35% vs state
How Massabesic High School compares with Maine and U.S. medians
Larger classes than state median
15.7:1 - 4.4 above the Maine state median of 11.3:1, indicating larger average class loads than typical schools in the state.
Massabesic High School is a large high school in Waterboro, Maine, enrolling 867 students.
Class loads run heavy: 15.7:1 is larger than about 98% of Maine schools and 39% above the 11.3:1 state mean, so each teacher carries more students than is typical.
Economic need runs somewhat below the state's typical profile, with 22.1% of students eligible for free meals.
By headcount it is one of the larger campuses in Maine, bigger than 98% of state schools at 867 students.
Its Resource Investment Index lands in the lower third of 569 scored Maine schools.
Against 51 statewide peers matched on enrollment and economic need, it ranks mid-pack at #36.
Its student body is predominantly White (94% of enrollment) (diversity index 11/100).
On the academic-pipeline side it reports 12 Advanced Placement courses.
Counselor coverage is strong, about 217 students per counselor, inside the American School Counselor Association's recommended 250:1.
Chronic absenteeism is elevated: 45.4% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
The surrounding Rsu 57/Msad 57 spends $15,651 per pupil, 22% below the Maine average, a leaner-resourced district than most.
Rsu 57/Msad 57 also operates Massabesic Middle School (619 students) and Waterboro Elementary School (547 students) alongside Massabesic 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
Massabesic 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 | 15.7:1 | ▲ 39% | 11.3:1 | 15.7:1 |
| Free-lunch eligible | 22.1% | ▼ 35% | 34.0% | 51.7% |
| Enrollment | 867 | top 2% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
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.
Largest group: White at 94.3% of enrollment.
Simpson diversity index - at 11.0, Massabesic High School is less mixed than the Maine school average of 20.6.
District-wide per-pupil expenditure for Rsu 57/Msad 57, which includes Massabesic High School.
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.
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Massabesic Middle School | Smaller | Similar economic need | Lower S:T ratio |
| Waterboro Elementary School | Smaller | Similar economic need | Lower S:T ratio |
| Line Elementary | Smaller | Higher economic need | Lower S:T ratio |
| Lyman Elementary School | Smaller | Similar economic need | Lower S:T ratio |
| Alfred Elementary School | Smaller | Similar economic need | Lower S:T ratio |
Comparisons are relative to Massabesic High School's own figures; each column derives from NCES Common Core of Data.
Next steps
Verify locally before acting on Massabesic High School's federal record.
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.
Massabesic High School has 867 students enrolled. It is a high school in Waterboro, ME.
The student-teacher ratio at Massabesic High School is 15.7:1, which is 39% higher than the Maine average of 11.3:1 and 0% higher than the national average of 15.7:1.
22.1% of students at Massabesic High School are eligible for free lunch, compared to the Maine average of 34.0%.
The largest demographic group at Massabesic High School is White at 94.3% of enrollment, in Waterboro, ME.
Massabesic High School has a Resource Investment Index of 45/100 (typical 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).
Massabesic High School earns 45/100 on the Resource Investment Index, with class sizes larger than 98% of Maine schools. It is also one of the largest schools in Maine. 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.
Besides Massabesic High School, Rsu 57/Msad 57 also operates Massabesic Middle School (619 students), Waterboro Elementary School (547 students), and Line Elementary (261 students). See the Rsu 57/Msad 57 district page for the complete list.
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.
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PlainSchools, “Massabesic High School, Waterboro ME.” Compiled from NCES Common Core of Data, Civil Rights Data Collection, and the NCES F-33 finance survey; data as of June 2026. https://plainschools.com/schools/massabesic-high-school-me
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