RSU 21 School District

177 Alewive Road
Kennebunk, ME 04043
(District boundaries shown in map)
10/
10
Top 10%

Top Rankings

RSU 21 School District ranks among the top 20% of public school district in Maine for:

Category
Attribute
Overall Rank
Highest overall rank (Top 10%)
Math Proficiency
Highest math proficiency (Top 10%)
Reading/Language Arts Proficiency
Highest reading/language arts proficiency (Top 10%)
Graduation Rate
Highest graduation rate (Top 5%)
Community Size
Largest student body (number of students) (Top 1%)
For the 2025 school year, there are 5 public elementary schools serving 1,573 students in RSU 21 School District. This district's average elementary testing ranking is 10/10, which is in the top 10% of public elementary schools in Maine.
Public Elementary Schools in RSU 21 School District have an average math proficiency score of 91% (versus the Maine public elementary school average of 81%), and reading proficiency score of 93% (versus the 84% statewide average).
Minority enrollment is 10% of the student body (majority Hispanic), which is less than the Maine public elementary school average of 14% (majority Black and Hispanic).

Overview

This School District
This State (ME)
# Schools
6 Schools
442 Schools
# Students
2,280 Students
112,991 Students
# Teachers
203 Teachers
10,443 Teachers
Student : Teacher Ratio
11:1
11:1

District Rank

RSU 21 School District, which is ranked within the top 20% of all 191 school districts in Maine (based off of combined math and reading proficiency testing data) for the 2021-2022 school year.
The school district's graduation rate of 92% has increased from 90-94% over five school years.
This School District
State Average (ME)
#19 out of 222 school districts
(Top 10%)
This chart displays the overall district rank of RSU 21  School District, with the latest 2021-22 school year data.
91%
82%
This chart displays the percentage of public school students that scored at or above 'proficient' levels in Math of RSU 21  School District and the percentage of public school students that scored at or above 'proficient' levels in Math of Maine by year, with the latest 2021-22 school year data.
92%
84%
This chart displays the percentage of public school students that scored at or above 'proficient' levels in Reading/Language Arts of RSU 21  School District and the percentage of public school students that scored at or above 'proficient' levels in Reading/Language Arts of Maine by year, with the latest 2021-22 school year data.
49%
37%
92%
86%
This chart displays public school graduation rate of RSU 21  School District and public school graduation rate of Maine by year, with the latest 2021-22 school year data.

Students by Ethnicity:

0.18
0.26
# American Indian Students
12 Students
878 Students
% American Indian Students
1%
1%
# Asian Students
37 Students
1,363 Students
% Asian Students
2%
1%
# Hispanic Students
90 Students
3,921 Students
% Hispanic Students
4%
3%
# Black Students
31 Students
5,274 Students
% Black Students
1%
5%
# White Students
2,063 Students
97,025 Students
% White Students
90%
86%
# Hawaiian Students
4 Students
101 Students
% Hawaiian Students
n/a
n/a
# Two or more races Students
43 Students
4,429 Students
% of Two or more races Students
2%
4%

Students by Grade:

# Students in PK Grade:
137
5,730
# Students in K Grade:
155
11,081
# Students in 1st Grade:
145
11,901
# Students in 2nd Grade:
173
12,646
# Students in 3rd Grade:
159
11,955
# Students in 4th Grade:
162
12,471
# Students in 5th Grade:
165
12,477
# Students in 6th Grade:
160
12,250
# Students in 7th Grade:
155
10,478
# Students in 8th Grade:
162
10,197
# Students in 9th Grade:
161
451
# Students in 10th Grade:
185
468
# Students in 11th Grade:
187
470
# Students in 12th Grade:
174
416
# Ungraded Students:
-
-

District Revenue and Spending

The revenue/student of $25,651 is higher than the state median of $21,600. The school district revenue/student has stayed relatively flat over four school years.
The school district's spending/student of $21,720 is higher than the state median of $21,191. The school district spending/student has stayed relatively flat over four school years.
This School District
This State (ME)
Total Revenue
$59 MM
$3,617 MM
This chart displays total revenue of RSU 21  School District and median value from total revenues of all school districts in Maine by year, with the latest 2020-21 school year data.
Spending
$50 MM
$3,549 MM
This chart displays total spending of RSU 21  School District and median value from total spendings of all school districts in Maine by year, with the latest 2020-21 school year data.
Revenue / Student
$25,651
$21,600
This chart displays average revenue per public school student in RSU 21  School District and average revenue per public school student of all school districts in Maine by year, with the latest 2020-21 school year data.
Spending / Student
$21,720
$21,191
This chart displays average spending per public school student in RSU 21  School District and average spending per public school student of all school districts in Maine by year, with the latest 2020-21 school year data.

Best RSU 21 School District Public Elementary Schools (2025)

School
(Math and Reading Proficiency)
Location
Grades
Students
Rank: #11.
Kennebunk Elementary School
(Math: 70-74% | Reading: 70-74% )
Rank:
10/
10
Top 5%
177 Alewive Road
Kennebunk, ME 04043
(207) 985-4402
Grades: PK-2
| 395 students
Rank: #22.
Middle School Of The Kennebunks
(Math: 93% | Reading: 95%)
Rank:
10/
10
Top 5%
60 Thompson Road
Kennebunk, ME 04043
(207) 467-8004
Grades: 6-8
| 477 students
Rank: #33.
Sea Road School
(Math: 92% | Reading: 93%)
Rank:
10/
10
Top 10%
29 Sea Road
Kennebunk, ME 04043
(207) 985-1105
Grades: 3-5
| 294 students
Rank: #44.
Mildred L Day School
(Math: 85-89% | Reading: 90-94%)
Rank:
9/
10
Top 20%
600 Limerick Road
Kennebunkport, ME 04046
(207) 284-4677
Grades: K-5
| 215 students
Rank: #55.
Kennebunkport Consolidated School
(Math: 80-84% | Reading: 85-89%)
Rank:
7/
10
Top 50%
25 School Street
Kennebunkport, ME 04046
(207) 967-2121
Grades: K-5
| 192 students

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Quick Stats (2025)

  • District size: 6 schools
  • Grades: PK-12
  • Enrollment: 2,280 students
  • Student:Teacher Ratio: 11:1
  • Minority Enrollment: 10%
  • : 92% (Top 5% in ME)
  • : Top 10%
  • : 91% (Top 10%)
  • : 92% (Top 10%)
  • : 49% (Top 50%)
  • Source: National Center for Education Statistics (NCES), ME Dept. of Education

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