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 2026-27 school year, there is 1 public high school serving 683 students in RSU 21 School District. This district's average high testing ranking is 8/10, which is in the top 30% of public high schools in Maine.
Public High School in RSU 21 School District have an average math proficiency score of 52% (versus the Maine public high school average of 42%), and reading proficiency score of 82% (versus the 83% statewide average).
Public High School in RSU 21 School District have a Graduation Rate of 92%, which is more than the Maine average of 86%.
The school with highest graduation rate is Kennebunk High School, with 90-94% graduation rate. Read more about public school graduation rate statistics in Maine or national school graduation rate statistics.
Minority enrollment is 8% of the student body (majority Hispanic and Asian), which is less than the Maine public high school average of 15% (majority Black and Hispanic).
Overview
This School District
This State (ME)
# Schools
6 Schools
124 Schools
# Students
2,262 Students
53,278 Students
# Teachers
202 Teachers
4,381 Teachers
Student-Teacher Ratio
11:1
11:1
Student By Grade
District Rank
RSU 21 School District, which is ranked within the top 20% of all 182 school districts in Maine (based off of combined math and reading proficiency testing data) for the 2022-2023 school year.
The school district's graduation rate of 92% has decreased from 95% over five school years.
Overall District Rank
#11 out of 189 school districts
(Top 10%)
(Top 10%)
Showing 2013–2023. Full 14-year historical data available below ↓
Math Test Scores (% Proficient)
70%
49%
Showing 2013–2023. Full 14-year historical data available below ↓
Reading/Language Arts Test Scores (% Proficient)
92%
84%
Showing 2012–2022. Full 13-year historical data available below ↓
Science Test Scores (% Proficient)
49%
37%
Graduation Rate
92%
87.3%
Showing 2014–2023. Full 13-year historical data available below ↓
Chronically Absent Students
(2022-23)26.5%
28.5%
Students by Ethnicity:
Diversity Score
0.18
0.27
Showing 2014–2023. Full 14-year historical data available below ↓
% American Indian
n/a
1%
% Asian
2%
1%
Showing 2014–2023. Full 14-year historical data available below ↓
% Hispanic
4%
4%
Showing 2014–2023. Full 12-year historical data available below ↓
% Black
1%
5%
Showing 2014–2023. Full 14-year historical data available below ↓
% White
91%
85%
Showing 2014–2023. Full 14-year historical data available below ↓
% Hawaiian
n/a
n/a
% Two or more races
2%
4%
Showing 2014–2023. Full 13-year historical data available below ↓
All Ethnic Groups
District Revenue and Spending
The revenue/student of $25,858 is higher than the state median of $22,146. The school district revenue/student has stayed relatively flat over four school years.
The school district's spending/student of $26,947 is higher than the state median of $22,012. The school district spending/student has grown by 20% over four school years.
Total Revenue
$59 MM
$3,685 MM
Showing 2014–2023. Full 14-year historical data available below ↓
Spending
$61 MM
$3,663 MM
Showing 2014–2023. Full 14-year historical data available below ↓
Revenue / Student
$25,858
$22,146
Spending / Student
$26,947
$22,012
Best RSU 21 School District Public High Schools (2026-27)
School
(Math and Reading Proficiency)
(Math and Reading Proficiency)
Location
Quick Facts
Rank: #11.
Kennebunk High School
(Math: 50-54% | Reading: 80-84%)
Rank:
Rank:
6/
Top 50%10
89 Fletcher Street
Kennebunk, ME 04043
(207) 985-1110
Kennebunk, ME 04043
(207) 985-1110
Gr: 9-12 | 683 students Student-teacher ratio: 12:1 Minority enrollment: 8%
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