Top Rankings
Canyon-Owyhee School Service Agency (COSSA) School District ranks among the top 20% of public school district in Idaho for:
Category
Attribute
Diversity
Most diverse schools (Top 1%)
Student Attention
Lowest student-teacher ratio (Top 1%)
For the 2025-26 school year, there is 1 public school serving 86 students in Canyon-Owyhee School Service Agency (COSSA) School District. This district's average testing ranking is 1/10, which is in the bottom 50% of public schools in Idaho.
Public School in Canyon-Owyhee School Service Agency (COSSA) School District have an average math proficiency score of 20% (versus the Idaho public school average of 41%), and reading proficiency score of 20% (versus the 55% statewide average).
Minority enrollment is 44% of the student body (majority Hispanic), which is more than the Idaho public school average of 27% (majority Hispanic).
Overview
This School District
This State (ID)
# Schools
1 School
808 Schools
# Students
86 Students
315,693 Students
# Teachers
9 Teachers
17,770 Teachers
Student-Teacher Ratio
10:1
10:1
Student By Grade
District Rank
Canyon-Owyhee School Service Agency (COSSA) School District, which is ranked within the bottom 50% of all 172 school districts in Idaho (based off of combined math and reading proficiency testing data) for the 2021-2022 school year.
The school district's graduation rate of 65% has increased from 20-29% over five school years.
Overall District Rank
#172 out of 172 school districts
(Bottom 50%)
(Bottom 50%)
Math Test Scores (% Proficient)
(21-22)≤20%
42%
Reading/Language Arts Test Scores (% Proficient)
≤20%
55%
Science Test Scores (% Proficient)
≤20%
41%
Graduation Rate
65%
80%
Students by Ethnicity:
Diversity Score
0.51
0.43
% American Indian
n/a
1%
% Asian
n/a
1%
% Hispanic
43%
20%
% Black
n/a
1%
% White
56%
73%
% Hawaiian
n/a
n/a
% Two or more races
1%
4%
All Ethnic Groups
District Revenue and Spending
The revenue/student of $18,837 is higher than the state median of $10,185. The school district revenue/student has grown by 51% over four school years.
The school district's spending/student of $17,756 is higher than the state median of $9,364. The school district spending/student has grown by 51% over four school years.
Total Revenue
$2 MM
$3,215 MM
Spending
$2 MM
$2,956 MM
Revenue / Student
$18,837
$10,185
Spending / Student
$17,756
$9,364
Best Canyon-Owyhee School Service Agency (COSSA) School District Public Schools (2025-26)
School
(Math and Reading Proficiency)
(Math and Reading Proficiency)
Location
Quick Facts
Rank: #11.
Cossa Academy
Alternative School
(Math: ≤20% | Reading: ≤20%)
Rank:
Rank:
1/
Bottom 50%10
109 Penny Lane
Wilder, ID 83676
(208) 482-7904
Wilder, ID 83676
(208) 482-7904
Gr: 7-12 | 86 students Student-teacher ratio: 10:1 Minority enrollment: 44%
Frequently Asked Questions
How many schools belong to Canyon-Owyhee School Service Agency (COSSA) School District?
Canyon-Owyhee School Service Agency (COSSA) School District manages 1 public schools serving 86 students.
What is the rank of Canyon-Owyhee School Service Agency (COSSA) School District?
Canyon-Owyhee School Service Agency (COSSA) School District is ranked #166 out of 172 school districts in Idaho (bottom 50%) based off of combined math and reading proficiency testing data for the 2021-2022 school year. This district ranks in the top 20% of Idaho school districts for: Most diverse schools (Top 1%) and Lowest student-teacher ratio (Top 1%)
What is the racial composition of students in Canyon-Owyhee School Service Agency (COSSA) School District?
56% of Canyon-Owyhee School Service Agency (COSSA) School District students are White, 43% of students are Hispanic, and 1% of students are Two or more races.
What is the student/teacher ratio of Canyon-Owyhee School Service Agency (COSSA) School District?
Canyon-Owyhee School Service Agency (COSSA) School District has a student/teacher ratio of 10:1, which is lower than the Idaho state average of 18:1.
What is Canyon-Owyhee School Service Agency (COSSA) School District's spending/student ratio?
The school district's spending/student of $17,756 is higher than the state median of $9,364. The school district spending/student has grown by 51% over four school years.
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