Enrollment
547
Maine · 2024-25 NCES data
Other / mixed grade configuration · East Waterboro, ME
Federal NCES profile for Waterboro Elementary School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 47/100.
The verdict
Waterboro Elementary School earns 47/100 on the Resource Investment Index, with class sizes larger than 74% of Maine schools.
Waterboro Elementary School has class sizes larger than 74% of Maine schools. Computed live against every Maine school reporting to NCES.
NCES ID 231467000779 Verify on NCES CCD record →
Enrollment
547
Maine · 2024-25 NCES data
Teachers (FTE)
45.0
Federal CCD staff survey
Students per teacher
12.2:1
vs 11.1:1 Maine avg
+10% vs state
Free-lunch eligible
22.1%
vs 34.0% Maine avg
-35% vs state
How Waterboro Elementary School compares with Maine and U.S. medians
Slightly above state median
12.2:1 - 1.1 above the Maine state median of 11.1:1, indicating larger average class loads than typical schools in the state.
Waterboro Elementary School is a large combined-grade school in East Waterboro, Maine, enrolling 547 students.
Class loads run somewhat heavier than typical: 12.2:1 puts it in the larger third of Maine schools by student-teacher ratio.
Economic need runs somewhat below the state's typical profile, with 22.1% of students eligible for free meals.
Enrollment of 547 puts it in the larger third of Maine schools by headcount.
Its Resource Investment Index sits near the middle of the pack among 569 scored Maine schools.
Against 104 statewide peers matched on enrollment and economic need, it ranks mid-pack at #48.
Its student body is predominantly White (91% of enrollment) (diversity index 17/100).
Counselor access is stretched at roughly 547 students per counselor, well above the ASCA-recommended 250:1 ceiling.
13.0% of students were chronically absent in the 2021-22 collection, in line with the post-pandemic national range.
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 High School (867 students) and Massabesic Middle School (619 students) alongside Waterboro Elementary 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
Waterboro Elementary 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 | 12.2:1 | ▲ 10% | 11.1:1 | 15.7:1 |
| Free-lunch eligible | 22.1% | ▼ 35% | 34.0% | 51.7% |
| Enrollment | 547 | top 11% | - | - |
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 91.2% of enrollment.
Simpson diversity index - at 16.6, Waterboro Elementary School is less mixed than the Maine school average of 20.6.
District-wide per-pupil expenditure for Rsu 57/Msad 57, which includes Waterboro Elementary 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 High School | Larger | Similar economic need | Higher S:T ratio |
| Massabesic Middle School | Similar size | Similar economic need | Similar S:T ratio |
| Line Elementary | Smaller | Higher economic need | Lower S:T ratio |
| Lyman Elementary School | Smaller | Similar economic need | Similar S:T ratio |
| Alfred Elementary School | Smaller | Similar economic need | Similar S:T ratio |
Comparisons are relative to Waterboro Elementary School's own figures; each column derives from NCES Common Core of Data.
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.
Next steps
Verify locally before acting on Waterboro Elementary 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.
Waterboro Elementary School has 547 students enrolled. It is a public school in East Waterboro, ME.
The student-teacher ratio at Waterboro Elementary School is 12.2:1, which is 10% higher than the Maine average of 11.1:1 and 22% lower than the national average of 15.7:1.
22.1% of students at Waterboro Elementary School are eligible for free lunch, compared to the Maine average of 34.0%.
The largest demographic group at Waterboro Elementary School is White at 91.2% of enrollment, in East Waterboro, ME.
Waterboro Elementary School has a Resource Investment Index of 47/100 (typical reported resources relative to schools nationally) based on 4 factors: student-teacher ratio, counselor availability, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
Waterboro Elementary School earns 47/100 on the Resource Investment Index, with class sizes larger than 74% 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.
Besides Waterboro Elementary School, Rsu 57/Msad 57 also operates Massabesic High School (867 students), Massabesic Middle School (619 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, “Waterboro Elementary School, East 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/waterboro-elementary-school-me
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