Total enrollment
2,867
+115 (+4%) vs SY 2020-21
7 schools in RSU 57/MSAD 57
Maine · 2,867 students · 6 cities
RSU 57/MSAD 57 reports 7 public K-12 schools and approximately 2,867 students enrolled, per NCES, an average school size of 410.
4-year change in RSU 57/MSAD 57
SY 2020-21 vs SY 2024-25School count
7
0 (0%) vs SY 2020-21
Source: NCES Common Core of Data, enrollment-weighted demographic averages
How RSU 57/MSAD 57 ranks
Among districts| Measure | This district | In Maine | In the US |
|---|---|---|---|
| Enrollment ranked largest first | 2,867 | #9 of 85 | #3,373 of 9,234 |
| Number of schools ranked most first | 7 | #14 of 85 | N/A |
| Students per teacher ranked fewest first | 12.0:1 | #57 of 85 | #2,036 of 9,044 |
| Free or reduced-price lunch share ranked highest first | 44.4% | #50 of 85 | #4,988 of 8,164 |
| Diversity index ranked most diverse first | 14.5% | #47 of 59 | #6,230 of 6,853 |
Districts need at least 2 schools and 500 students to be ranked. Test proficiency is ranked within the state only, since each state gives a different test. Each rank links to the full list.
Inside RSU 57/MSAD 57
Since 2017-18, the 7 district schools that reported both years went from 3,014 to 2,867 students (down 5%) and from 226 to 239 full-time teachers (up 6%), as of 2024-25.
Proficient is the average share of students meeting the state standard across each school's state tests in 2023-24 and 2024-25; schools with fewer than 100 students and schools serving specialized populations are left out. Staffing figures come from the NCES Common Core of Data and count only schools that reported students and teachers in both years.
| Name | City | Level | Grades | Enrollment |
|---|---|---|---|---|
| Massabesic High School | Waterboro | High | 09-12 | 867 |
| Massabesic Middle School | East Waterboro | Middle | 06-08 | 619 |
| Waterboro Elementary School | East Waterboro | Elementary | PK-05 | 547 |
| Line Elementary | West Newfield | Elementary | PK-05 | 261 |
| Lyman Elementary School | Lyman | Elementary | PK-05 | 241 |
| Alfred Elementary School | Alfred | Elementary | PK-05 | 179 |
| Shapleigh Memorial School | Shapleigh | Elementary | PK-05 | 153 |
About RSU 57/MSAD 57
Across 7 schools, RSU 57/MSAD 57 hosts about 2,867 students in Maine. By footprint it is a mid-sized district.
For a sense of the school types, RSU 57/MSAD 57 is built around 5 elementary, 1 middle, and 1 high school.
On a per-school basis, RSU 57/MSAD 57 runs about 410 students per school, 40% higher than the state mean of roughly 293.
Looking at the last 4 years. Across the same 4-year window, public-school enrollment increased 4%: 2,752 students in SY 2020-21 versus 2,867 in SY 2024-25.
In the discussion threads here, the community for RSU 57/MSAD 57 discusses sports rivalries, cross-district programs, and shared facilities. Members of the local community share what they see day-to-day.