Total enrollment
2,262
-84 (-4%) vs SY 2017-18
6 schools in RSU 21
Maine · 2,262 students · 3 cities
RSU 21, Maine operates 6 public K-12 schools between its neighborhoods, enrolling about 2,262 students (around 377 per campus).
7-year change in RSU 21
SY 2017-18 vs SY 2024-25School count
6
0 (0%) vs SY 2017-18
% White
91%
was 93%
% Hispanic
4%
was 1%
% Black
1%
was 2%
% Asian
2%
was 2%
Source: NCES Common Core of Data, enrollment-weighted demographic averages
| Name | City | Level | Grades | Enrollment |
|---|---|---|---|---|
| Kennebunk High School | Kennebunk | High | 09-12 | 683 |
| Middle School of the Kennebunks | Kennebunk | Middle | 06-08 | 470 |
| Kennebunk Elementary School | Kennebunk | Elementary | PK-02 | 378 |
| Sea Road School | Kennebunk | Elementary | 03-05 | 308 |
| Mildred L Day School | Arundel | Elementary | KG-05 | 224 |
| Kennebunkport Consolidated Sch | Kennebunkport | Elementary | KG-05 | 199 |
About RSU 21
RSU 21 administers 6 public schools across Maine, collectively hosting roughly 2,262 students.
For a sense of the school types, RSU 21 is built around 4 elementary, 1 middle, and 1 high school.
Average enrollment per school in RSU 21 is about 377, above the Maine average of roughly 293.
Trend over the past 7 years. Total public-school enrollment in RSU 21 has contracted 4% since SY 2017-18, moving from about 2,346 students to 2,262.
On this page, the community for RSU 21 discusses comparison threads between local schools and program reviews. Anyone with firsthand knowledge of these schools is welcome to weigh in.