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Below Average

#543 of 719 schools in ID

Cossa Academy

High School · CANYON-OWYHEE SCHOOL SERVICE AGENCY (COSSA)

109 PENNY LANE, Wilder, ID 83676

Enrollment

86

Student-Teacher

10.8:1

Score

4.9

Grades

7th – 12th

Data vintage2022-23

How this school compares

Idaho schools

#543 of 719

In Wilder

#3 of 5

public schools

School environment

9.1 / 10

Excellent

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Cossa Academy

4.9/10

High School in Wilder · grades 7th – 12th. Start here, then compare fit against nearby and district options.

Wilder High School

5.5/10

0.2 mi away. Use as a geographic alternative in the same move search.

Wilder Middle School

5.4/10

0.2 mi away. Use as a geographic alternative in the same move search.

About Cossa Academy

Cossa Academy is a public high school in Wilder, ID, part of CANYON-OWYHEE SCHOOL SERVICE AGENCY (COSSA). Cossa Academy serves approximately 86 students, and covers grades 7th-12th, and has a 10.8:1 student-teacher ratio. Cossa Academy has a current MySchoolScout rating of 4.9 out of 10 and ranks #543 of 719 schools in ID.

Structured state assessment records for Cossa Academy show 21% math proficiency (multi-year average, 2009-2022) and 30% reading/ELA proficiency (multi-year average, 2009-2022).

How it compares1.2 pts below ID schools
  • This school 4.9 · Below Average
  • ID avg 6.1

What Parents Should Know

At 86 students, Cossa Academy is on the smaller side. That usually buys more individual attention and teachers who know every kid by name, with the trade-off of fewer electives and extracurriculars than a larger school can staff. Ask what activities it actually offers.

Cossa Academy sits in a rural area, which can mean longer drives for some families. Rural schools are often community anchors with smaller classes, but check transportation, after-school options, and access to specialized services before you commit.

36% of students at Cossa Academy were chronically absent in the 2022-23 school year, above the national average. Chronic absenteeism means missing 15 or more school days, and at high rates it drags on classroom pacing for everyone. Ask what the school does to help families get kids to class consistently.

Score Breakdown

Full Profile · 4/4 metrics
Student Progress5.5Average25%
Year-over-year improvement in student test scores.
View breakdown
Years of Data14
Annual Change-3.89 pts/yr
Data Period2009–2022
TrendDeclining
Academics2.4Needs Improvement25%
Student proficiency on state tests, adjusted for community poverty levels.
View breakdown
Math Proficiency10% (2022 EdFacts)
Reading/ELA Proficiency10% (2022 EdFacts)
Overall Proficiency10% (2022 EdFacts, Math+ELA)
Expected (poverty-adj.)25% (model expectation from 2022 EdFacts)
vs. Expected-14.7 pts
Adjusted Percentile7th
College Readiness3.7Needs Improvement30%
Graduation rates, AP course participation, and IB availability.
View breakdown
4-Year Graduation Rate34.5%
IB ProgramNo
Resources & Environment9.1Excellent20%
Student-teacher ratio, per-pupil spending, and attendance.
View breakdown
Student-Teacher Ratio10.8:1
Per-Pupil Spending$13,515
Chronic Absenteeism36%

Cossa Academy — Students at Cossa Academy score 10% proficient, which is below what's typical for similar communities (expected: 25%).

How we calculate scores →

Equity & Diversity

Shown separately, not included in overall score

Free/Reduced Lunch

95.3%

Students qualifying for federal meal assistance

Test Scores ID EDFACTS (2021-22)

Math Proficiency 21.3% (multi-year average, 2009-2022)
School
State
N/A
ELA Proficiency 29.8% (multi-year average, 2009-2022)
School
State
N/A

Based on 28 test records from ID state assessments. About our data

Proficiency Trend

↓ Declining

Average proficiency (% at or above grade level) across Math & ELA over time.

2009
Math
30%
ELA
49.5%
2010
Math
34.5%
ELA
54.5%
2011
Math
44.5%
ELA
64.5%
2012
Math
44.5%
ELA
54.5%
2013
Math
75%
ELA
75%
2014
Math
5%
ELA
15%
2015
Math
5%
ELA
5%
2016
Math
5%
ELA
5%
2017
Math
24.5%
ELA
24.5%
2018
Math
5%
ELA
15%
2019
Math
5%
ELA
15%
2020*
Math
5%
ELA
15%
2021*
Math
5%
ELA
15%
2022
Math
10%
ELA
10%

* COVID-affected year — test participation was uneven nationwide. This data is weighted at 50% in the Growth score calculation.

Source: EdFacts (NCES) and state assessment data. Growth score: 5.5/10.

How Cossa Academy Compares

See how Cossa Academy performs across key quality dimensions compared to state benchmarks.

Overall Score
4.9/10
25th percentile in ID
Academic
2.4/10
Needs Improvement
Growth
5.5/10
Average
Environment
9.1/10
Excellent
Advanced STEM
1/5
Subjects offered

Funding & Resources

Free/Reduced Lunch
Students eligible for subsidized meals
95%
Teaching Staff
11:1 student-teacher ratio
8 teachers
Chronic Absenteeism
Students missing 15+ days per year (SY 2022-23)
36.0%

Programs & Offerings

Advanced STEM Courses1 of 5 advanced subjects offered
Algebra II, Advanced Math, Calculus, Chemistry, Physics·CRDC 2021-22

Data as of 2021-22 · Source: CRDC via Urban Institute · Learn more

Location

109 PENNY LANE, Wilder, ID 83676

Nearby Alternatives

Families considering Cossa Academy may also want to explore other high schools in the area. MARSING HIGH SCHOOL (rated 9.2/10, 10.7 miles away, in nearby Marsing), which scores notably higher. Another option is Adrian High School (rated 8.0/10, 9.2 miles away, in nearby Adrian), which scores notably higher. Additionally, NOTUS JR/SR HIGH SCHOOL (rated 7.2/10, 6.6 miles away, in nearby Caldwell), which scores notably higher. For more schools in Wilder, see our Wilder schools guide .

Nearby Schools

20 within 10.7 mi
School Distance Rating
WILDER HIGH SCHOOL Wilder 0.2 mi 5.5
WILDER MIDDLE SCHOOL Wilder 0.2 mi 5.4
IDAHO FUTURE READY ACADEMY FOR VIRTUAL LEARNING Wilder 0.2 mi 4.0
WILDER ELEMENTARY SCHOOL Wilder 0.3 mi 4.9
HOMEDALE HIGH SCHOOL Homedale 4.6 mi 4.8
HOMEDALE ELEMENTARY SCHOOL Homedale 4.6 mi 3.5
HOMEDALE MIDDLE SCHOOL Homedale 5.4 mi 5.4
PARMA MIDDLE SCHOOL Parma 7.6 mi 7.9
PARMA HIGH SCHOOL Parma 7.6 mi 6.3
MAXINE JOHNSON ELEMENTARY Parma 7.6 mi 7.1
NOTUS ELEMENTARY SCHOOL Caldwell 6.5 mi 5.0
NOTUS JR/SR HIGH SCHOOL Caldwell 6.6 mi 7.2
WEST CANYON ELEMENTARY SCHOOL Caldwell 6.9 mi 8.1
MARSING ELEMENTARY SCHOOL Marsing 10.7 mi 6.0
MARSING HIGH SCHOOL Marsing 10.7 mi 9.2
MARSING MIDDLE SCHOOL Marsing 10.7 mi 7.1
Adrian High School Adrian 9.2 mi 8.0
Adrian Elementary School Adrian 9.2 mi 9.2
WILSON ELEMENTARY SCHOOL Caldwell 10.8 mi 3.8
ELEVATE ACADEMY Caldwell 10.7 mi 5.4

Neighborhood Census ACS (2019-2023)

Census data for ZIP 83676 (ACS 2019-2023 5-Year Estimates) · Data sources

Median Income

$74,286

Median Home Value

$311,200

Median Rent

$850/mo

Population

5,109

College Educated

17.7%

Homeownership

78.3%

Avg Commute

28.3 min

Poverty Rate

8%

Median Age

38.9

Similar Schools

Schools in the same state with comparable level, size, and ratings

School Rating
BLACK CANYON JR/SR HIGH SCHOOL Emmett, ID 4.6
FALLS CITY ACADEMY Jerome, ID 5.3
TAMMANY HIGH SCHOOL Lewiston, ID 5.3
INITIAL POINT HIGH SCHOOL Kuna, ID 4.5
LAKE PEND OREILLE HIGH SCHOOL Sandpoint, ID 4.5
FRANKLIN COUNTY HIGH SCHOOL Preston, ID 5.4

Frequently Asked Questions

Common questions about Cossa Academy

What grades does Cossa Academy serve?

Cossa Academy serves students in grades 7th through 12th.

How many students attend Cossa Academy?

Cossa Academy has an enrollment of approximately 86 students.

What is the student-teacher ratio at Cossa Academy?

The student-teacher ratio at Cossa Academy is 10.8:1. A lower ratio generally means more individual attention per student. The national average is approximately 16:1 for public schools.

How does Cossa Academy rank in ID?

Cossa Academy ranks #543 of 719 schools in ID.

What is Cossa Academy's MySchoolScout rating?

Cossa Academy has a current MySchoolScout rating of 4.9 out of 10. This score combines the level-appropriate components shown in the rating breakdown; equity data is shown separately for context.

What are the test scores at Cossa Academy?

Based on loaded state assessment records, Cossa Academy has 21% math proficiency (multi-year average, 2009-2022) and 30% reading/ELA proficiency (multi-year average, 2009-2022).

Is Cossa Academy a charter school?

No, Cossa Academy is not a charter school. It is a traditional public school operated by the local school district.

Is Cossa Academy a Title I school?

No, Cossa Academy is not currently a Title I school.

What does the Free & Reduced Lunch percentage mean for Cossa Academy?

95.3% of students at Cossa Academy qualify for free or reduced-price lunch. This is a commonly used indicator of economic need and provides important context when interpreting test scores.

11 schools nearby View map →

Neighborhood Context

Walk Score
10 Car-Dependent
Bike Score
26 Somewhat Bikeable

Powered by Walk Score

Quick Facts NCES CCD (SY 2022-23)

Grades
7th – 12th
Enrollment
86
Student-Teacher Ratio
10.8:1
Teachers (FTE)
8
Free/Reduced Lunch
95.3%
Type
alternative
Setting
Distant Rural
County
Canyon County
Chronic Absenteeism (SY 2022-23)
36.0%
4-Year Graduation
34.5%

District

CANYON-OWYHEE SCHOOL SERVICE AGENCY (COSSA)
District Enrollment
86
Schools in District
1
Per-Pupil Spending
$13,515
District Rank
#1 of 1

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