Total enrollment
2,554
+9 (+0%) vs SY 2020-21
8 schools in RSU 18
Maine · 2,554 students · 4 cities
Public-school families inside RSU 18 pick from 8 schools serving the district's roughly 2,554 K-12 students (5 elementary, 2 middle, and 1 high).
4-year change in RSU 18
SY 2020-21 vs SY 2024-25School count
8
0 (0%) vs SY 2020-21
Source: NCES Common Core of Data, enrollment-weighted demographic averages
How RSU 18 ranks
Among districts| Measure | This district | In Maine | In the US |
|---|---|---|---|
| Enrollment ranked largest first | 2,554 | #14 of 85 | #3,713 of 9,234 |
| Number of schools ranked most first | 8 | #8 of 85 | N/A |
| Students per teacher ranked fewest first | 13.0:1 | #75 of 85 | #3,151 of 9,044 |
| Free or reduced-price lunch share ranked highest first | 39.3% | #57 of 85 | #5,602 of 8,164 |
| Diversity index ranked most diverse first | 14.1% | #49 of 59 | #6,253 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 18
Since 2017-18, the 8 district schools that reported both years went from 2,665 to 2,554 students (down 4%) and from 212 to 196 full-time teachers (down 8%), 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 |
|---|---|---|---|---|
| Messalonskee High School | Oakland | High | 09-12 | 695 |
| Messalonskee Middle School | Oakland | Middle | 06-08 | 495 |
| James H Bean School | Sidney | Elementary | PK-05 | 300 |
| China Primary School | China | Elementary | PK-04 | 242 |
| Belgrade Central School | Belgrade | Elementary | PK-05 | 236 |
| Williams Elementary School | Oakland | Elementary | 03-05 | 222 |
| Ralph M Atwood Primary School | Oakland | Elementary | PK-02 | 194 |
| China Middle School | China | Middle | 05-08 | 170 |
About RSU 18
Across 8 schools, RSU 18 instructs about 2,554 students in Maine. By footprint it is a medium-population district.
Looking at the level breakdown, RSU 18 is built around 5 elementary, 2 middle, and 1 high school.
Five-year track record. Across the same 4-year window, public-school enrollment remained close to its prior level: 2,545 students in SY 2020-21 versus 2,554 in SY 2024-25.
On this page, the community for RSU 18 discusses open enrollment windows, redistricting talk, and busing logistics. Posts come from current and former families, staff, and alumni.