Challis Jr. Sr. High School is a school in Challis, Idaho. The former Challis High School, a building at 701 Main Ave. in Challis, Idaho, was listed on the National Register of Historic Places in 1980. It was destroyed by the 1983 Borah Peak earthquake.
Serving 136 students in grades 7-12, Challis Jr/sr High School ranks in the bottom 50% of all schools in Idaho for overall test scores (math proficiency is bottom 50%, and reading proficiency is bottom 50%).
The percentage of students achieving proficiency in math is 25-29% (which is lower than the Idaho state average of 41%). The percentage of students achieving proficiency in reading/language arts is 35-39% (which is lower than the Idaho state average of 55%).
The student-teacher ratio of 9:1 is lower than the Idaho state level of 17:1.
Minority enrollment is 10% of the student body (majority Hispanic), which is lower than the Idaho state average of 28% (majority Hispanic).
Quick Facts (2026)
- Grades: 7-12
- Enrollment: 136 students
- Student-Teacher Ratio: 9:1
- Minority Enrollment: 10%
- Graduation Rate: 60-79% (Btm 50% in ID)
- Overall Testing Rank: Bottom 50%
- Math Proficiency: 25-29% (Btm 50%)
- Reading Proficiency: 35-39% (Btm 50%)
- Science Proficiency: 40-49% (Top 50%)
- Source: National Center for Education Statistics (NCES), ID Dept. of Education
Top Rankings
Challis Jr/sr High School ranks among the top 20% of public schools in Idaho for:
Category
Attribute
Student Attention
School Overview
Challis Jr/sr High School's student population of 136 students has declined by 9% over five school years.
The teacher population of 16 teachers has grown by 23% over five school years.
Grades Offered
Grades 7-12
(No virtual instruction)
(No virtual instruction)
Total Students
136 students
Total Classroom Teachers
16 teachers
Colors
Blue and Gold
School Calendar
School Motto
‘Truth and Honor’
School Rankings
Challis Jr/sr High School ranks within the bottom 50% of all 704 schools in Idaho (based off of combined math and reading proficiency testing data).
The diversity score of Challis Jr/sr High School is 0.19, which is less than the diversity score at state average of 0.44. The school's diversity has stayed relatively flat over five school years.
Overall Testing Rank
#576 out of 704 schools
(Bottom 50%)
(Bottom 50%)
Math Test Scores (% Proficient)
25-29%
41%
Reading/Language Arts Test Scores (% Proficient)
35-39%
55%
Science Test Scores (% Proficient)
40-49%
41%
Student-Teacher Ratio
9:1
17:1
American Indian
2%
1%
Hispanic
6%
21%
White
90%
72%
Two or more races
2%
4%
All Ethnic Groups
Graduation Rate
60-79%
80%
Participates in the National School Lunch Program (NSLP)
Yes
Eligible for Free Lunch
36%
32%
Eligible for Reduced Lunch
12%
7%
School Statewide Testing
School District Name
Source: National Center for Education Statistics (NCES), ID Dept. of Education
Frequently Asked Questions
What is Challis Jr/sr High School's ranking?
Challis Jr/sr High School is ranked #576 out of 704 schools, which ranks it among the bottom 50% of public schools in Idaho.
What percent of students have achieved state testing proficiency in math and reading?
25-29% of students have achieved math proficiency (compared to the 41% ID state average), while 35-39% of students have achieved reading proficiency (compared to the 55% ID state average).
What is the graduation rate of Challis Jr/sr High School?
The graduation rate of Challis Jr/sr High School is 60-79%, which is lower than the Idaho state average of 80%.
How many students attend Challis Jr/sr High School?
136 students attend Challis Jr/sr High School.
What is the racial composition of the student body?
90% of Challis Jr/sr High School students are White, 6% of students are Hispanic, 2% of students are American Indian, and 2% of students are Two or more races.
What is the student-teacher ratio of Challis Jr/sr High School?
Challis Jr/sr High School has a student ration of 9:1, which is lower than the Idaho state average of 17:1.
What grades does Challis Jr/sr High School offer ?
Challis Jr/sr High School offers enrollment in grades 7-12 (No virtual instruction).
What school district is Challis Jr/sr High School part of?
Challis Jr/sr High School is part of Challis Joint School District.
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