For the 2026 school year, there are 9 public schools serving 1,718 students in Idaho County, ID (there are 2 private schools, serving 166 private students). 91% of all K-12 students in Idaho County, ID are educated in public schools (compared to the ID state average of 94%).
The top-ranked public schools in Idaho County, ID are Prairie Elementary School, Grangeville High School and Prairie 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 schools have an average math proficiency score of 48% (versus the Idaho public school average of 41%), and reading proficiency score of 58% (versus the 55% statewide average). Schools in Idaho County have an average ranking of 9/10, which is in the top 20% of Idaho public schools.
Minority enrollment is 11% of the student body (majority Hispanic), which is less than the Idaho public school average of 28% (majority Hispanic).
Best Public Schools in Idaho County (2026)
School
(Math and Reading Proficiency)
(Math and Reading Proficiency)
Location
Quick Facts
Rank: #11.
Prairie Elementary School
(Math: 75-79% | Reading: 70-74%)
Rank:
Rank:
10/
Top 5%10
1916 East Street
Cottonwood, ID 83522
(208) 962-3122
Cottonwood, ID 83522
(208) 962-3122
Gr: PK-6 | 222 students Student-teacher ratio: 13:1 Minority enrollment: 4%
Rank: #22.
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 | 244 students Student-teacher ratio: 15:1 Minority enrollment: 13%
Rank: #33.
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 | 204 students Student-teacher ratio: 15:1 Minority enrollment: 5%
Rank: #44.
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 | 81 students Student-teacher ratio: 9:1 Minority enrollment: 18%
Rank: #55.
Elk City School
(Math: ≥50% | Reading: <50%)
Rank:
Rank:
6/
Top 50%10
100 School Road
Elk City, ID 83525
(208) 926-2270
Elk City, ID 83525
(208) 926-2270
Gr: PK-8 | 13 students Student-teacher ratio: 13:1
Rank: #66.
Grangeville Elem/middle School
(Math: 39% | Reading: 58%)
Rank:
Rank:
6/
Top 50%10
400 Idaho Street
Grangeville, ID 83530
(208) 983-0400
Grangeville, ID 83530
(208) 983-0400
Gr: PK-8 | 505 students Student-teacher ratio: 17:1 Minority enrollment: 11%
Rank: #77.
Clearwater Valley Elementary School
(Math: 40-44% | Reading: 45-49%)
Rank:
Rank:
5/
Bottom 50%10
306 East Pine Street
Kooskia, ID 83539
(208) 926-4311
Kooskia, ID 83539
(208) 926-4311
Gr: PK-6 | 117 students Student-teacher ratio: 15:1 Minority enrollment: 11%
Rank: #88.
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 | 169 students Student-teacher ratio: 12:1 Minority enrollment: 18%
Rank: #99.
Riggins Elementary School
(Math: 20-29% | Reading: 40-49%)
Rank:
Rank:
3/
Bottom 50%10
Highway 95
Riggins, ID 83549
(208) 630-6025
Riggins, ID 83549
(208) 630-6025
Gr: PK-5 | 92 students Student-teacher ratio: 12:1 Minority enrollment: 7%
Frequently Asked Questions
What are the top-ranked public schools in Idaho County, ID?
The top-ranked public schools in Idaho County, ID include Prairie Elementary School, Grangeville High School and Prairie Jr/sr High School.
How many public schools are located in Idaho County?
9 public schools are located in Idaho County.
What percentage of students in Idaho County go to public school?
91% of all K-12 students in Idaho County are educated in public schools (compared to the ID state average of 94%).
What is the racial composition of students in Idaho County?
Idaho County public schools minority enrollment is 11% of the student body (majority Hispanic), which is less than the Idaho public schools average of 28% (majority Hispanic).
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