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 6 public schools serving 2,280 students in RSU 21 School District. This district's average testing ranking is 10/10, which is in the top 10% of public schools in Maine.
Public Schools in RSU 21 School District have an average math proficiency score of 91% (versus the Maine public school average of 81%), and reading proficiency score of 92% (versus the 84% statewide average).
Minority enrollment is 10% of the student body (majority Hispanic), which is less than the Maine public school average of 14% (majority Black and Hispanic).
Overview
This School District
This State (ME)
# Schools
6 Schools
599 Schools
# Students
2,280 Students
167,601 Students
# Teachers
203 Teachers
15,305 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.
Overall District Rank
#19 out of 222 school districts
(Top 10%)
(Top 10%)
Math Test Scores (% Proficient)
91%
82%
Reading/Language Arts Test Scores (% Proficient)
92%
84%
Science Test Scores (% Proficient)
49%
37%
Graduation Rate
92%
86%
Students by Ethnicity:
Diversity Score
0.18
0.26
# American Indian Students
12 Students
1,265 Students
% American Indian Students
1%
1%
# Asian Students
37 Students
2,182 Students
% Asian Students
2%
1%
# Hispanic Students
90 Students
5,868 Students
% Hispanic Students
4%
3%
# Black Students
31 Students
8,330 Students
% Black Students
1%
5%
# White Students
2,063 Students
143,450 Students
% White Students
90%
86%
# Hawaiian Students
4 Students
154 Students
% Hawaiian Students
n/a
n/a
# Two or more races Students
43 Students
6,352 Students
% of Two or more races Students
2%
4%
Students by Grade:
# Students in PK Grade:
137
6,349
# Students in K Grade:
155
11,671
# Students in 1st Grade:
145
11,941
# Students in 2nd Grade:
173
12,668
# Students in 3rd Grade:
159
11,987
# Students in 4th Grade:
162
12,501
# Students in 5th Grade:
165
12,500
# Students in 6th Grade:
160
12,284
# Students in 7th Grade:
155
12,587
# Students in 8th Grade:
162
12,758
# Students in 9th Grade:
161
12,450
# Students in 10th Grade:
185
12,696
# Students in 11th Grade:
187
12,731
# Students in 12th Grade:
174
12,478
# Ungraded Students:
-
-
District Revenue and Spending
The revenue/student of $25,651 is higher than the state median of $21,583. 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 $21,174. The school district spending/student has stayed relatively flat over four school years.
Total Revenue
$59 MM
$3,617 MM
Spending
$50 MM
$3,549 MM
Revenue / Student
$25,651
$21,583
Spending / Student
$21,720
$21,174
Best RSU 21 School District Public Schools (2025)
School
(Math and Reading Proficiency)
(Math and Reading Proficiency)
Location
Grades
Students
Rank: #11.
Kennebunk Elementary School
(Math: 70-74% | Reading: 70-74% )
Rank:
Rank:
10/
Top 5%10
177 Alewive Road
Kennebunk, ME 04043
(207) 985-4402
Kennebunk, ME 04043
(207) 985-4402
Grades: PK-2
| 395 students
Rank: #22.
Middle School Of The Kennebunks
(Math: 93% | Reading: 95%)
Rank:
Rank:
10/
Top 5%10
60 Thompson Road
Kennebunk, ME 04043
(207) 467-8004
Kennebunk, ME 04043
(207) 467-8004
Grades: 6-8
| 477 students
Rank: #33.
Sea Road School
(Math: 92% | Reading: 93%)
Rank:
Rank:
10/
Top 10%10
29 Sea Road
Kennebunk, ME 04043
(207) 985-1105
Kennebunk, ME 04043
(207) 985-1105
Grades: 3-5
| 294 students
Rank: #44.
Mildred L Day School
(Math: 85-89% | Reading: 90-94%)
Rank:
Rank:
9/
Top 20%10
600 Limerick Road
Kennebunkport, ME 04046
(207) 284-4677
Kennebunkport, ME 04046
(207) 284-4677
Grades: K-5
| 215 students
Rank: #55.
Kennebunk High School
(Math: 85-89% | Reading: 80-84%)
Rank:
Rank:
7/
Top 50%10
89 Fletcher Street
Kennebunk, ME 04043
(207) 985-1110
Kennebunk, ME 04043
(207) 985-1110
Grades: 9-12
| 707 students
Rank: #66.
Kennebunkport Consolidated School
(Math: 80-84% | Reading: 85-89%)
Rank:
Rank:
7/
Top 50%10
25 School Street
Kennebunkport, ME 04046
(207) 967-2121
Kennebunkport, ME 04046
(207) 967-2121
Grades: K-5
| 192 students
Frequently Asked Questions
How many schools belong to RSU 21 School District?
RSU 21 School District manages 6 public schools serving 2,280 students.
What is the rank of RSU 21 School District?
RSU 21 School District is ranked #20 out of 191 school districts in Maine (top 20%) based off of combined math and reading proficiency testing data for the 2021-2022 school year. This district ranks in the top 20% of Maine school districts for: Highest overall rank (Top 10%), Highest math proficiency (Top 10%), Highest reading/language arts proficiency (Top 10%), Highest graduation rate (Top 5%) and Largest student body (number of students) (Top 1%)
What is the racial composition of students in RSU 21 School District?
90% of RSU 21 School District students are White, 4% of students are Hispanic, 2% of students are Asian, 2% of students are Two or more races, 1% of students are American Indian, and 1% of students are Black.
What is the student/teacher ratio of RSU 21 School District?
RSU 21 School District has a student/teacher ratio of 11:1, which is equal to the Maine state average of 11:1.
What is RSU 21 School District's spending/student ratio?
The school district's spending/student of $21,720 is higher than the state median of $21,174. The school district spending/student has stayed relatively flat over four school years.
Recent Articles
Segregation in K-12 Education: Colonial Era
Explore the origins of educational segregation during the colonial era and the differential treatment of Native American, African American, and white students. This article delves into the historical context, policies, and societal attitudes that shaped early education in colonial America, highlighting the disparities and injustices that persisted within the schooling systems of that time.
Segregation in K-12 Education: The Jim Crow Era
This article delves into the segregated schooling system that existed during the Jim Crow Era, examining the disparities faced by African American students.
December 16, 2024
Personalized Learning: Revolutionizing Education for the 21st CenturyExplore the revolutionary approach of Personalized Learning in K-12 education. This article discusses the benefits, challenges, and potential of tailoring education to individual student needs, incorporating technology and adaptive learning methods to prepare students for the 21st century.
