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Public School Review - Established 2003

Best Custer County Public Elementary Schools (2026)

For the 2026 school year, there are 3 public elementary schools serving 300 students in Custer County, ID.
The top-ranked public elementary schools in Custer County, ID are Stanley Elem/jr High School, Challis Elementary School and Mackay Elementary School. Overall testing rank is based on a school's combined math and reading proficiency test score ranking.
Custer County, ID public elementary schools have an average math proficiency score of 32% (versus the Idaho public elementary school average of 43%), and reading proficiency score of 48% (versus the 55% statewide average). Elementary schools in Custer County have an average ranking of 4/10, which is in the bottom 50% of Idaho public elementary schools.
Minority enrollment is 11% of the student body (majority Hispanic), which is less than the Idaho public elementary school average of 28% (majority Hispanic).

Best Public Elementary 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.
Challis Elementary School
(Math: 35-39% | Reading: 50-54%)
Rank:
5/
10
Bottom 50%
950 Bluff Avenue
Challis, ID 83226
(208) 879-2439
Gr: PK-6 | 173 students Student-teacher ratio: 12:1 Minority enrollment: 11%
Rank: #33.
Mackay Elementary School
(Math: 20-24% | Reading: 40-44%)
Rank:
2/
10
Bottom 50%
400 East Spruce Street
Mackay, ID 83251
(208) 588-2834
Gr: PK-6 | 114 students Student-teacher ratio: 14:1 Minority enrollment: 13%

Frequently Asked Questions

What are the top-ranked public elementary schools in Custer County, ID?
The top-ranked public elementary schools in Custer County, ID include Stanley Elem/jr High School, Challis Elementary School and Mackay Elementary School.
How many public elementary schools are located in Custer County?
3 public elementary schools are located in Custer County.
What is the racial composition of students in Custer County?
Custer County public elementary schools minority enrollment is 11% of the student body (majority Hispanic), which is less than the Idaho public elementary schools average of 28% (majority Hispanic).

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