Serving 482 students in grades Kindergarten-11, Sage International School Middleton ranks in the bottom 50% of all schools in Idaho for overall test scores (math proficiency is top 50%, and reading proficiency is top 50%).
The percentage of students achieving proficiency in math is 41% (which is equal to the Idaho state average of 41%). The percentage of students achieving proficiency in reading/language arts is 47% (which is lower than the Idaho state average of 55%).
The student-teacher ratio of 16:1 is lower than the Idaho state level of 17:1.
Minority enrollment is 28% of the student body (majority Hispanic), which is equal to the Idaho state average of 28% (majority Hispanic).
Quick Facts (2026)
- School Type: Charter School
- Grades: Kindergarten-11
- Enrollment: 482 students
- Student-Teacher Ratio: 16:1
- Minority Enrollment: 28%
- Overall Testing Rank: Bottom 50% in ID
- Math Proficiency: 41% (Top 50%)
- Reading Proficiency: 47% (Btm 50%)
- Science Proficiency: 35-39% (Btm 50%)
- Source: National Center for Education Statistics (NCES), ID Dept. of Education
School Overview
Sage International School Middleton's student population of 482 students has grown by 27% over five school years.
The teacher population of 30 teachers has grown by 15% over five school years.
School Type
Grades Offered
Grades Kindergarten-11
(No virtual instruction)
(No virtual instruction)
Total Students
482 students
Total Classroom Teachers
30 teachers
School Rankings
Sage International School Middleton ranks within the bottom 50% of all 704 schools in Idaho (based off of combined math and reading proficiency testing data).
The diversity score of Sage International School Middleton is 0.44, which is equal to the diversity score at state average of 0.44. The school's diversity has stayed relatively flat over five school years.
Overall Testing Rank
#409 out of 704 schools
(Bottom 50%)
(Bottom 50%)
Math Test Scores (% Proficient)
41%
41%
Reading/Language Arts Test Scores (% Proficient)
47%
55%
Science Test Scores (% Proficient)
35-39%
41%
Student-Teacher Ratio
16:1
17:1
American Indian
1%
1%
Asian
1%
1%
Hispanic
21%
21%
Black
1%
1%
White
72%
72%
Hawaiian
n/a
n/a
Two or more races
4%
4%
All Ethnic Groups
Participates in the National School Lunch Program (NSLP)
Yes
Eligible for Free Lunch
28%
32%
Eligible for Reduced Lunch
8%
7%
School Statewide Testing
School District Name
Source: National Center for Education Statistics (NCES), ID Dept. of Education
Frequently Asked Questions
What is Sage International School Middleton's ranking?
Sage International School Middleton is ranked #409 out of 704 schools, which ranks it among the bottom 50% of public schools in Idaho.
What percent of students have achieved state testing proficiency in math and reading?
41% of students have achieved math proficiency (compared to the 41% ID state average), while 47% of students have achieved reading proficiency (compared to the 55% ID state average).
How many students attend Sage International School Middleton?
482 students attend Sage International School Middleton.
What is the racial composition of the student body?
72% of Sage International School Middleton students are White, 21% of students are Hispanic, 4% of students are Two or more races, 1% of students are American Indian, 1% of students are Asian, and 1% of students are Black.
What is the student-teacher ratio of Sage International School Middleton?
Sage International School Middleton has a student ration of 16:1, which is lower than the Idaho state average of 17:1.
What grades does Sage International School Middleton offer ?
Sage International School Middleton offers enrollment in grades Kindergarten-11 (No virtual instruction).
What school district is Sage International School Middleton part of?
Sage International School Middleton is part of Sage International School Middleton LLC School District.
School Reviews
5 10/10/2025
Great school.
Review Sage International School Middleton. Reviews should be a few sentences in length. Please include any comments on:
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