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Public School Review - Established 2003

Best Custer County Public Middle Schools (2026)

For the 2026 school year, there are 3 public middle schools serving 274 students in Custer County, ID.
The top-ranked public middle schools in Custer County, ID are Stanley Elem/jr High School, Mackay Jr/sr High School and Challis Jr/sr High School. Overall testing rank is based on a school's combined math and reading proficiency test score ranking.
Custer County, ID public middle schools have an average math proficiency score of 29% (versus the Idaho public middle school average of 38%), and reading proficiency score of 44% (versus the 55% statewide average). Middle schools in Custer County have an average ranking of 2/10, which is in the bottom 50% of Idaho public middle schools.
Minority enrollment is 12% of the student body (majority Hispanic), which is less than the Idaho public middle school average of 26% (majority Hispanic).

Best Public Middle Schools in Custer County (2026)

School
(Math and Reading Proficiency)
Location
Quick Facts
Rank: #11.
Stanley Elem/jr High School
(Math: <50% | Reading: ≥50%)
Rank:
6/
10
Top 50%
Airport Road
Stanley, ID 83278
(208) 774-3503
Gr: K-8 | 23 students Student-teacher ratio: 8:1 Minority enrollment: 4%
Rank: #22.
Mackay Jr/sr High School
(Math: 20-29% | Reading: 50-59%)
Rank:
4/
10
Bottom 50%
390 East Spruce Street
Mackay, ID 83251
(208) 588-2262
Gr: 7-12 | 104 students Student-teacher ratio: 13:1 Minority enrollment: 10%
Rank: #33.
Challis Jr/sr High School
(Math: 25-29% | Reading: 35-39%)
Rank:
2/
10
Bottom 50%
1110 Bluff Avenue
Challis, ID 83226
(208) 879-2255
Gr: 7-12 | 136 students Student-teacher ratio: 9:1 Minority enrollment: 10%

Frequently Asked Questions

What are the top-ranked public middle schools in Custer County, ID?
The top-ranked public middle schools in Custer County, ID include Stanley Elem/jr High School, Mackay Jr/sr High School and Challis Jr/sr High School.
How many public middle schools are located in Custer County?
3 public middle schools are located in Custer County.
What is the racial composition of students in Custer County?
Custer County public middle schools minority enrollment is 12% of the student body (majority Hispanic), which is less than the Idaho public middle schools average of 26% (majority Hispanic).

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