Islesboro Central School is a public K-12 school located in Islesboro, Maine, United States. It is the only school on the island.
Serving 76 students in grades Kindergarten-12, Islesboro Central School ranks in the top 30% of all schools in Maine for overall test scores (math proficiency is top 50%, and reading proficiency is top 50%).
The percentage of students achieving proficiency in math is 80-89% (which is approximately equal to the Maine state average of 82%). The percentage of students achieving proficiency in reading/language arts is ≥90% (which is higher than the Maine state average of 84%).
The student:teacher ratio of 5:1 is lower than the Maine state level of 11:1.
Minority enrollment is 4% of the student body (majority Asian), which is lower than the Maine state average of 14% (majority Black).
Quick Stats (2025)
- Grades: Kindergarten-12
- Enrollment: 76 students
- Student:Teacher Ratio: 5:1
- Minority Enrollment: 4%
- Graduation Rate: ≥50% (Btm 50% in ME)
- Overall Testing Rank: Top 30%
- Math Proficiency: 80-89% (Top 50%)
- Reading Proficiency: ≥90% (Top 20%)
- Science Proficiency: 40-59% (Top 30%)
- Source: National Center for Education Statistics (NCES), ME Dept. of Education
Top Rankings
Islesboro Central School ranks among the top 20% of public schools in Maine for:
Category
Attribute
Reading/Language Arts Proficiency
Community Size
Student Attention
School Overview
Islesboro Central School's student population of 76 students has declined by 15% over five school years.
The teacher population of 14 teachers has declined by 6% over five school years.
Grades Offered
Grades Kindergarten-12
(No virtual instruction)
(No virtual instruction)
Total Students
76 students
Gender %
Total Classroom Teachers
14 teachers
Year Founded
1952
Colors
Royal blue, Silver
School Rankings
Islesboro Central School ranks within the top 30% of all 512 schools in Maine (based off of combined math and reading proficiency testing data).
The diversity score of Islesboro Central School is 0.08, which is less than the diversity score at state average of 0.26. The school's diversity has stayed relatively flat over five school years.
Overall Testing Rank
#152 out of 512 schools
(Top 30%)
(Top 30%)
Math Test Scores (% Proficient)
80-89%
82%
Reading/Language Arts Test Scores (% Proficient)
≥90%
84%
Science Test Scores (% Proficient)
40-59%
37%
Student : Teacher Ratio
5:1
11:1
American Indian
n/a
1%
Asian
2%
1%
Hispanic
n/a
3%
Black
1%
5%
White
96%
86%
Hawaiian
n/a
n/a
Two or more races
1%
4%
All Ethnic Groups
Graduation Rate
≥50%
86%
Participates in the National School Lunch Program (NSLP)
Yes
Eligible for Free Lunch
9%
33%
Eligible for Reduced Lunch (20-21)
12%
6%
School Statewide Testing
School District Name
Source: National Center for Education Statistics (NCES), ME Dept. of Education
School Notes
- School Mascot: Islesboro Eagle
Profile last updated: 02/09/2025
Frequently Asked Questions
What is Islesboro Central School's ranking?
Islesboro Central School is ranked #152 out of 512 schools, which ranks it among the top 30% of public schools in Maine.
What percent of students have achieved state testing proficiency in math and reading?
80-89% of students have achieved math proficiency (compared to the 82% ME state average), while ≥90% of students have achieved reading proficiency (compared to the 84% ME state average).
What is the graduation rate of Islesboro Central School?
The graduation rate of Islesboro Central School is 50%, which is lower than the Maine state average of 86%.
How many students attend Islesboro Central School?
76 students attend Islesboro Central School.
What is the racial composition of the student body?
96% of Islesboro Central School students are White, 2% of students are Asian, 1% of students are Black, and 1% of students are Two or more races.
What is the student:teacher ratio of Islesboro Central School?
Islesboro Central School has a student ration of 5:1, which is lower than the Maine state average of 11:1.
What grades does Islesboro Central School offer ?
Islesboro Central School offers enrollment in grades Kindergarten-12 (No virtual instruction).
What school district is Islesboro Central School part of?
Islesboro Central School is part of Islesboro School District.
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