For the 2025-26 school year, there are 4 public high schools serving 691 students in Idaho County, ID.
The top-ranked public high schools in Idaho County, ID are Grangeville High School, Prairie Jr/sr High School and Salmon River Jr/sr High School. Overall testing rank is based on a school's combined math and reading proficiency test score ranking.
Idaho County, ID public high schools have an average math proficiency score of 48% (versus the Idaho public high school average of 37%), and reading proficiency score of 57% (versus the 58% statewide average). High schools in Idaho County have an average ranking of 8/10, which is in the top 30% of Idaho public high schools.
Idaho County, ID public high school have a Graduation Rate of 68%, which is less than the Idaho average of 80%.
The school with highest graduation rate is Prairie Jr/sr High School, with ≥80% graduation rate. Read more about public school graduation rate statistics in Idaho or national school graduation rate statistics.
Minority enrollment is 13% of the student body (majority Hispanic), which is less than the Idaho public high school average of 26% (majority Hispanic).
Best Public High Schools in Idaho County (2025-26)
School
(Math and Reading Proficiency)
(Math and Reading Proficiency)
Location
Quick Facts
Rank: #11.
Grangeville High School
(Math: 55-59% | Reading: 70-74%)
Rank:
Rank:
9/
Top 20%10
910 South D Street
Grangeville, ID 83530
(208) 983-0580
Grangeville, ID 83530
(208) 983-0580
Gr: 9-12 | 256 students Student-teacher ratio: 17:1 Minority enrollment: 14%
Rank: #22.
Prairie Jr/sr High School
(Math: 65-69% | Reading: 55-59%)
Rank:
Rank:
9/
Top 20%10
453 Keuterville Road
Cottonwood, ID 83522
(208) 962-3901
Cottonwood, ID 83522
(208) 962-3901
Gr: 7-12 | 194 students Student-teacher ratio: 14:1 Minority enrollment: 6%
Rank: #33.
Salmon River Jr/sr High School
(Math: 30-39% | Reading: 60-69%)
Rank:
Rank:
7/
Top 50%10
711 Ace's Place
Riggins, ID 83549
(208) 628-3431
Riggins, ID 83549
(208) 628-3431
Gr: 6-12 | 74 students Student-teacher ratio: 8:1 Minority enrollment: 18%
Rank: #44.
Clearwater Valley Jr/sr
(Math: 30-34% | Reading: 45-49%)
Rank:
Rank:
4/
Bottom 50%10
4643 Highway 13
Kooskia, ID 83539
(208) 926-4511
Kooskia, ID 83539
(208) 926-4511
Gr: 7-12 | 167 students Student-teacher ratio: 13:1 Minority enrollment: 20%
Idaho County Public Schools (Closed)
School
Location
Quick Facts
Region II Prof-tech Academy (Closed 2023)
Vocational School
1916 East Street
Cottonwood, ID 83522
(208) 962-3971
Cottonwood, ID 83522
(208) 962-3971
Main Street
White Bird, ID 83554
(208) 839-0106
White Bird, ID 83554
(208) 839-0106
Gr: K-4 | 16 students Student-teacher ratio: 16:1 Minority enrollment: 13%
Frequently Asked Questions
What are the top-ranked public high schools in Idaho County, ID?
The top-ranked public high schools in Idaho County, ID include Grangeville High School, Prairie Jr/sr High School and Salmon River Jr/sr High School.
How many public high schools are located in Idaho County?
4 public high schools are located in Idaho County.
What is the racial composition of students in Idaho County?
Idaho County public high schools minority enrollment is 13% of the student body (majority Hispanic), which is less than the Idaho public high schools average of 26% (majority Hispanic).
Recent Articles
Charter Schools vs Public Schools 2025: Key Differences & Trends
Explore updated 2025 insights comparing charter schools vs public schools, enrollment, academic outcomes, funding, and real-world examples for families and educators.
Are Public Schools Ready for the 21st Century? 2025 Update
Explore 2025 insights on whether public schools are ready for the 21st century, covering performance, technology, equity, funding, and future-ready learning.
Public School Open House & Enrollment Season Guide
A parent-focused guide to the public school open house and enrollment season, with expert questions, timelines, and decision tips.